CHIBA Akihiko

J-GLOBAL         Last updated: Mar 4, 2019 at 15:25
 
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Name
CHIBA Akihiko
URL
http://db.tohoku.ac.jp/whois/e_detail/b651b32bb086fd05e6f51062c1dd6858.html
Affiliation
Tohoku University
Section
Institute for Materials Research Deformation Processing
Job title
Professor
Degree
工学博士(Tohoku University)

Research Areas

 
 

Education

 
 
 - 
Mar 1985
Graduate School, Division of Engineering, Iwate University
 
 
 - 
Mar 1982
Faculty of Engineering, Tohoku University
 

Committee Memberships

 
Apr 2015
 - 
Today
日本金属学会  理事
 
Apr 2014
 - 
Today
紛体粉末冶金協会・粉末積層3D造形技術委員会  委員
 
Apr 2013
 - 
Today
66連合後援会実行委員会  委員
 
Apr 2013
 - 
Today
鉄鋼協会東北支部 支部委員会  委員
 
Apr 2012
 - 
Today
スーパーサイエンスハイスクール運営指導委員会  委員
 

Awards & Honors

 
Mar 2014
第15回 日本金属学会学術功労賞, 日本金属学会
 
Mar 2003
第61回 日本金属学会功績賞, 日本金属学会
 
Apr 1993
第33回金属助成会研究奨励賞(原田研究奨励賞), 原田研究奨励賞
 

Published Papers

 
K. Ikeda, A. Chiba, K. A. Gschneidner, Y. C.S. Yeh, B. J. Beaudry, N. Kobayashi, K. Noto
Physica B+C   135 391-393   Dec 1985   [Refereed]
The measurements of the electrical resistivity and the low temperature heat capacity in the superconducting (La//1// minus //yM//y)//3S//4 compounds with M equals vacancy, Sc, Y, Ce, Lu, and Th were made in zero field and in magnetic fields up to ...
K. Ikeda, T. Sato and A. Chiba
Materials Transaction   31 93-97   1990   [Refereed]
A. Chiba, S. Hanada and S. Watanabe
Materials Transaction   31 824-827   Jan 1990   [Refereed]
Ductility improvement is investigated at room temperature in polycrystalline Ni3Al macroalloyed with Pd which has been revealed to have a strong tendency to substitute for the Ni site independent of the composition of the host elements. Pd-doped N...
千葉晶彦、花田修治、渡辺貞夫
日本金属学会会報(まてりあ)   30 12-18   1991
A. Chiba, S. Hanada and S. Watanabe
Scripta metall. mater.   25 303-308   1991   [Refereed]
Katsuhiko Nonaka, Kazuo Tanosaki, Masayoshi Fujita, Akihiko Chiba, Takeshi Kawabata, Osamu Izumi
Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals   55 1045-1053   Jan 1991
In order to clarify the deformation and fracture behavior of a Ti-50 mol%Al alloy, discontinous compression tests have been performed at room temperature. Surfaces of specimens were observed by optical microscopy and scanning electron microscopy (...
A. Chiba, D. Shindo and S. Hanada
Acta metall. mater.   39 13-18   Jan 1991   [Refereed]
Atom location, by channeling enhanced microanalysis (ALCHEMI), was performed to examine the substitution behavior of Pd atoms added to a Ni3Al intermetallic compound. From the quantitative analysis, it can be concluded that Pd has a strong tendenc...
A. Chiba, S. Hanada and S. Watanabe
Scripta metall. mater.   25 1053-1056   Jan 1991   [Refereed]
A. Chiba, S. Hanada and S. Watanabe
Acta metall.mater.   39 1799-1805   Jan 1991   [Refereed]
Room temperature ductility of Ni3Al was investigated by macroalloying with Pd which is known to have a strong tendency to substitute for the Ni site independent of the composition of the host alloy. A striking feature is that as-cast Pd-doped Ni3A...
Improvement in Ductility of Ni3Al by γ Former Doping
A. Chiba, S. Hanada and S. Watanabe
Materials Science and Engineering A   152 108-113   1992   [Refereed]
Determination of Site Preference of Cu and Zr in Ni3Al
K. Hono, H. Numakura, I. A. Szabo, A. Chiba and T. Sakurai
Surface Science   266 358-363   1992   [Refereed]
Katsuhiko Nonaka, Kazuo Tanosaki, Masayoshi Fujita, Akihiko Chiba, Takeshi Kawabata, Osamu Izumi
Materials Transactions, JIM   33 802-810   Jan 1992
In order to investigate the deformation and fracture behavior of a Ti-50 mol%Al alloy, discontinuous compression tests have been performed at room temperature. Surfaces of specimens were observed by optical microscopy and scanning electron microsc...
K. Hono and A. Chiba
Acta metall.mater.   40 419-425   Jan 1992   [Refereed]
The site preference of Cu in Ni3Al with a composition of Ni75Al23Cu2has been determined by atom-probe field ion microscopy (APFIM). The sample was analyzed in the three major low index planes with atomic layer resolution. From the data chain obtai...
A. Chiba, S. Hanada and S. Watanabe
Materials Transaction   33 503-508   Jan 1992   [Refereed]
Ductility of binary Ni3Al alloys having Al concentrations ranging from 23 to 26 mol% has been investigated using tensile tests. It was found that a recrystallized Ni–23Al alloy exhibits elongation of approximately 5%. Recrystallized Ni–23∼26Al all...
A. Chiba, S. Hanada and S. Watanabe
Scripta metall.mater.   26 1031-1036   Apr 1992   [Refereed]
K. Hono, H. Numakura, I. A. Szabó, A. Chiba, T. Sakurai
Surface Science   266 358-363   Apr 1992
The site preferences of Cu and Ge in Ni3Al with an Ll2structure have been investigated by atom probe field ion microscopy (APFIM). The fraction of Cu atoms at the Ni sites was determined to be 94% in the case of the Ni75Al23Cu2alloy. On the other ...
A. Chiba, S. Hanada, S. Watanabe
Materials Science and Engineering A   152 108-113   May 1992
Ductility of Ni3Al macroalloyed with a γ former and a γ′ former has been examined on the basis of the assumption that lowering of ordering energy is responsible for ductility improvement of macroalloyed Ni3Al. It was found that the addition of γ f...
Ductilization of Ni3Al by Alloying with Substitutional Elements
A. Chiba and S. Hanada
J. Mater. Sci. Technol.   9 391-399   1993   [Refereed]
Cu L2,3 White Lines of Cu Compounds Studied by Electron Energy Loss Spectroscopy
Disuke Shindo, Kenji Hiraga, An-Pang Tsai and Akihiko Chiba
J. Electron Microsc   42 48-50   1993   [Refereed]
Daisuke Shindo, Kenji Hiraga, Anpang Tsai, Akihiko Chiba
Microscopy   42 48-50   Jan 1993
Cu L2 3 near edge fine structures of Cu compounds were investigated by electron energy loss spectroscopy. In Cu60Ti40, small but sharp white lines at the Cu L23 edge were observed. The white lines were attributed to the charge transfer between the...
S. Hanada, A. Chiba, H. Z. Guo, S. Watanabe
Proceedings from the Conference on Critical Issues in the Development of High Temperature Structural Materials   227-236   Dec 1993
This paper reports on ductility of B-free Ni3Al alloys. Recrystallized Ni3Al binary alloys with Ni-rich compositions show appreciable ductility when an environmental effect is eliminated, while the alloys with stoichiometric and Al-rich compositio...
A. Chiba, S. Hanada and S. Watanabe
Acta metall. mater.   42 1733-1738   Jan 1994   [Refereed]
The grain boundary character distributions in cast, recrystallized and strain annealed Ni3Al alloys with a composition of Ni23Al were examined to clarify the relation between ductility and the grain boundary character distributions in Ni3Al. The p...
A. Chiba and S. Hanada
Phil. Mag.A   69 751-765   Jan 1994   [Refereed]
The dislocation structure in Ni3Al lightly deformed by cold-rolling consists of long straight dislocations parallel to the ⟨101⟩ direction; the dislocations are mostly dissociated into a/2⟨110⟩ super partials bounding the antiphase boundary (APB) ...
A. Chiba, S. Hanada and S. Watanabe
JIM   35 286-290   Jan 1994   [Refereed]
Ductility of recrystallized Zr-doped Ni3Al alloys, Ni-23Al-0.4Zr and Ni-23Al-2Zr, has been investigated by tensile tests at room temperature in dry oxygen. A cold-working a cast Ni3Al alloy, followed by annealing for recrystallization, even if the...
S. Takahashi, A. Chiba, A. Y. Takahashi
Journal of Physics: Condensed Matter   6 10795-10804   Dec 1994
The influence of plastic deformation on magnetic properties has been studied in Ni75+xAl25-x (0<or=x<or=2) and Ni 77-xAl23Pdx (0<or=x<or=3) intermetallic compounds. The temperature dependence of the spontaneous magnetization, M S(T), has been anal...
S. Takahashi, A. Chiba and A. Y. Takahashi
J. Phys.:Condens. Mater   6 10795-10804   Dec 1994   [Refereed]
The influence of plastic deformation on magnetic properties has been studied in Ni75+xAl25-x (0≤x≤2) and Ni77-xAl23Pdx (0≤x≤3) intermetallic compounds. The temperature dependence of the spontaneous magnetization, Ms(T), has been analyzed according...
S. Takahashi, A. Y. Takahashi and A. Chiba
J. Phys.: Condens. Mater   6 6011-6018   Dec 1994   [Refereed]
Isothermal magnetization curves of Ni77-xAl23Pd x (0<or=x<or=3) intermetallic compound have been measured in the temperature range between 4.5 K and 110 K. The temperature dependence of spontaneous magnetization, Ms(T), has been analysed according...
S. Takahashi, A. Chiba and T. A. Takahashi
Phys. Letters A   197 350-352   1995   [Refereed]
A. Chiba, S. Hanada, S. Watanabe
Materials Research Society Symposium - Proceedings   364 843-848   Jan 1995
Ductility of binary and ternary Ni3Al alloys with conventional purity, fabricated by isothermal hot-forging, was examined by tensile tests in dry oxygen to eliminate environmental embrittlement. Recrystallized Ni-23Al doped with approximately 0.4 ...
S. Takahashi, X. G. Li and A. Chiba
J. Phys.: Condens. Mater   8 11243-11257   1996   [Refereed]
Carbon production on palladium point electrode with neutron burst under DC glow discharge in pressurized deutrium gas
H. Yamada, H. Nonaka, A. Dohi, H. Hirahara, T. Fujiwara, X. G. Li and A. Chiba
J. New Energy   1 55-58   1996   [Refereed]
X. G. Li, A. Chiba, K. Aoki and T. Masumoto
Scripta Materialia   35 817-823   1996   [Refereed]
A. Chiba and S. Hanada
Intermetallics   4 55-59   Jan 1996   [Refereed]
Rapidly solidified Ni3Al ribbons and wires are prepared to examine the relationship between antiphase domain (APD) structure and ductility. As-rapidly solidified ribbons of Ni-rich binary and ternary Ni3Al alloys show fine APD structure and exhibi...
李 星国、大崎勝久、宇田雅広、千葉晶彦
日本金属学会誌   60 128-134   Jan 1996   [Refereed]
Ultrafine powder AlN/Al with an average size of 300 nm was synthesized by an arc-plasma method. This powder was added up to 20 mass% into two kinds of commercial AlN powders prepared by direct nitridation of Al and carbothermal reaction of Al2O3. ...
X. G. Li, A. Chiba, K. Ohsaki, Y. Morita and M. Uda
Journal of Alloys and Compounds   238 202-209   May 1996   [Refereed]
The disintegration due to hydrogenation of Nb-Al alloys with eight different compositions has been studied. The hydrogenation is performed directly in an arc-melting chamber without exposing Nb-Al ingots to air after arc-melting. Because the activ...
S. Takahashi, X. G. Li and A. Chiba
J. Phys.: Condens. Mater   8 5101-5105   Jul 1996   [Refereed]
Magnetization is measured in plastically deformed Ni50Cu50 alloy in the temperature range from 4.5 to 80 K.The temperature dependence of spontaneous magnetization Ms(T) has been analysed according to the self-consistent renormalization theory of s...
X. G. Li, A. Chiba, Y. Nakata, H. Nagai and M. Suzuki
Materials Science and Engineering, A   219 96-101   Nov 1996   [Refereed]
Ultrafine SiC-Si3N4composite powder synthesized by laser-induced gas-phase reaction was heat-treated at a temperature range of 295-1773 K in a mixture gas flow of Ar + N2. The changes in crystalline structure, shape, particle size, crystalline siz...
X. G. Li, A. Chiba and S. Takahashi
Journal of magnetism and magnetic materials   170 339-345   1997   [Refereed]
X. G. Li, A. Chiba, S. Takahashi and K. Osaki
Journal of magnetism and magnetic materials   173(1-2) 101-108   1997   [Refereed]
T. Ono, A. Chiba, X. G. Li and S. Takahashi
Mater.Trans.   38 171-174   1997   [Refereed]
吉野泰弘、岩渕明、池澤和彦、千葉晶彦、清水友治
低温工学   第32号 507-514   1997   [Refereed]
Xingguo Li, Katsuhisa Ohsaki, Masahiro Uda, Akihiko Chiba, Seiki Takahashi
Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals   61 99-104   Jan 1997
The composite ultrafine powder AlN/Al with an average size of 300 nm was synthesized by arc-plasma method. This powder was added up to 15 mass% into the two kinds of commercial AlN powders prepared by the direct nitridation of Al and the carbon re...
A. Chiba, T. Ono, X. G. Li, S. Takahashi
Materials Research Society Symposium - Proceedings   460 707-712   Jan 1997
Constant-velocity and constant-load compression tests have been conducted to examine the mechanical behavior of polycrystalline IrAl and Ir1-xNixAl at ambient and elevated temperatures. Although IrAl exhibits brittle fracture before or immediately...
X. G. Li, A. Chiba, K. Aoki and T. Masumoto
Intermetallics   5 387-391   Jan 1997   [Refereed]
The C15 Laves compounds of RFe2(R = rare earth metal, Ce, Sm, Gd, Tb, Dy, Ho and Er) were thermal-analyzed by heating in a hydrogen atmosphere of 0·10 to 5·00 MPa at a heating rate of 20 K min-1. Four kinds of exothermic peaks are observed, which ...
X. G. Li, A. Chiba and S.Takahashi
Journal of Alloys and Compounds   260 153-156   Jan 1997   [Refereed]
Hydrogenation of Nb75Si25directly in an arc-melting chamber after arc-melting was investigated. A Nb75Si25ingot absorbs hydrogen rapidly and simultaneously disintegrates into fine hydride powder. After dehydriding at 1073 K for 10.8 ks, fine Nb75S...
X. G. Li, A. Chiba, K. Aoki and T. Masumoto
Materials Science and Engineering   A222 197-200   Feb 1997   [Refereed]
Amorphous alloy of Nd2-Al can be prepared by hydrogenation. Its magnetic properties were investigated from 4.2 to 290 K and were compared with those of the corresponding original compound and amorphous alloy prepared by liquid quenching. The short...
X. G. Li, A. Chiba and S. Takahashi
J. Appl. Phys   81 2895-2897   Mar 1997   [Refereed]
Structural changes of the intermetallic compound SmCo5after hydrogenation and nitrogenation were investigated by x-ray diffraction, transmission electron microscopy, and differential scanning calorimetry. Amorphization was not observed by hydrogen...
X. G. Li, A. Chiba, K. Aoki and T. Masumoto
Journal of Alloys and Compounds   255 253-261   Jun 1997   [Refereed]
Structural changes of R-Al compounds (R=La, Ce, Pr, Nd, Sm, Gd, Dy, Tb, Ho, Er) induced by hydrogenation were investigated by X-ray diffractometry (XRD), transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). Hydrogen-...
M. Sakurai, M. Matsuura, K. Suzuki, A. Chiba, S. Hanada
Journal De Physique. IV : JP   7    Dec 1997
Occupied sites by dopants of Ag(0.1at%), Pd(2at%) and Zr(0.4at%) in the Ni3Al intermetallic compound are investigated by means of EXAFS analysis. It is found that Pd substitutes the Ni site and Zr substitutes the Al site. These results are consist...
Formation of amorphous phase of R3In and R2In intermetallic compounds by hydrogenation, Materials Science and Engineering
X. G. Li, A. Chiba, K. Aoki and T. Masumoto
Materials Science and Engineering   A241 294-298   1998   [Refereed]

Books etc

 
医療用金属材料概論
千葉晶彦(その他)
日本金属学会   Feb 2010   
金属材料の加工と組織
千葉晶彦(その他) (Part:Joint Work, 5.6章(コバルト合金)172頁~188頁)
共立出版   Mar 2010   
金属積層造形技術入門
千葉晶彦,京極秀樹,眞部弘宣他 (Part:Editor, 第4章 粉末溶解(パウダベッド)法の実際)
㈱ウィザップ   Sep 2016   ISBN:978-4-903944-19-7
Application of Smart Hot Forging Technique in Producing Biomedical Co–Cr–Mo Artificial Implants
Yunping Li, Akihiko Chiba
Advances in Metallic Biomaterials   Jun 2015   
Effects of Carbon Addition on Mechanical Properties and Microstructures of Ni-Free Co–Cr–W-Based Dental Alloys
Kenta Yamanaka, Manami Mori, Akihiko Chiba (Part:Joint Work)
Interface Oral Health Science   2015   

Conference Activities & Talks

 
Possibility to optimally control preheating temperatures for simultaneously removing residual stresses without occurng “smoke” in aadditive manufacturing with slectron beam melting
CHIBA Akihiko
8th ALD Workshop&Conference VIM/ESR/VAR and Powder Metallurgy   7 Nov 2018   
An approach to improve the corrosion resistance of FeCrWC alloy in sulfuric acid with trace Cu modification
Chen Zhang, Huakang Bian, Kenta Yamanaka, Akihiko Chiba
SMS2018   30 Oct 2018   
Regulating the coarsening of the γ' phase in a novel high entropy superalloy
Huakang Bian, Kenta Yamanaka, Akihiko Chiba
SMS2018   30 Oct 2018   
Study on Mechanical Properties and Microstructure of Several Refractory High-Entropy Alloys
Cheng Yang, Huakang Bian, Kenta Aoyagi, Akihiko Chiba
SMS2018   30 Oct 2018   
Regulating twin boundary mobility in magnesium and its alloys
Cheng Yang, Huakang Bian, Kenta Aoyagi, Akihiko Chiba
SMS2018   30 Oct 2018   
Measurement of Toxicity CoCrMo Alloys from EBM fabricated in Inflammation Artificial Blood Plasma
Yuli Setiyorini, S. Pintowantoro, B.A. Kurniawan, N. Widiastuti, Daixu Wei, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba
SMS2018   30 Oct 2018   
Tensile deformation behavior of additively manufactured Ti-6Al-4V alloy studied by in-situ synchrotron X-ray diffraction
Kenta Yamanaka, Manami Mori, Shigeo Sato, Takahisa Shobu, Akihiko Chiba
SMS2018   30 Oct 2018   
Recent Research Activities in Deformation Processing
Akihiko Chiba, Kenta Yamanaka, Kenta Aoyagi, Hao Wang
SMS2018   30 Oct 2018   
In-situ Synchrotron X-ray Diffraction Line-profile Analysis during Tensile Deformation in Additively Manufactured Ti-6Al-4V Alloy
Kenta Yamanaka, Asumi Kuroda, Miyu Itoh, Manami Mori, Takahisa Shobu, Shigeo Sato, Akihiko Chiba
MS&T 2018   17 Oct 2018   
Effects of Cold Swaging and Annealing on the Microstructures and Mechanical Properties of Biomedical Co-Cr-Mo Alloy Rods
Manami Mori, Nanae Sato, Kenta Yamanaka, Kazuo Yoshida, Koji Kuramoto, Akihiko Chiba
MS&T 2018   16 Oct 2018   
Mechanical and biological response of biomedical Co-Cr-Mo alloy produced by additive manufacturing using electron beam melting (EBM)
CHIBA Akihiko
The 9th international conference on advanced materials processing (ICAMP-9)   26 Sep 2018   
High corrosion resistant FeCrWC alloy in sulfuric acid with Cu modification
Chen Zhang, Huakang Bian, Kenta Yamanaka,CHIBA Akihiko
The 3rd International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development   25 Sep 2018   
Mechanical properties and cytotoxicity of biomedical Co-Cr-Mo alloy rods prepared by hot caliber rolling
Kenta Yamanaka, Manami Mori, Kazuo Yoshida, Damien Fabrégue, Sandra Balvay, Daniel Hartmann,CHIBA Akihiko
The 3rd International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development   25 Sep 2018   
Study on Mechanical Properties and Microstructure of Refractory High-Entropy Alloys
Cheng Yang, Kenta Aoyagi, CHIBA Akihiko
The 3rd International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development   25 Sep 2018   
Effect of gamma-phase stability on the property of Co-Ni-based high-entropy superalloys with varying Ni contents
19 Sep 2018   
A Phase Field Study on Script Lamellar Structure of MoSi2/Mo5Si3 Eutectic
19 Sep 2018   
Grain Morphology and Texture Formation in a Co-Cr-Mo Alloy Fabricated by Electron Beam Melting
19 Sep 2018   
Regulating twin boundary mobility in magnesium and its alloys
19 Sep 2018   
A high corrosion-resistant Fe-Cr-W-C alloy with Cu-modification in sulfuric acid solution
19 Sep 2018   
Study on mechanical properties and microstructure of high-entropy alloys with high melting point
19 Sep 2018   
Influence of μ phase on the coarsening behavior of γ' phase in high entropy superalloy
19 Sep 2018   
Microstructure evolution of commercially pure titanium during electron beam additive manufacturing [Invited]
Kenta Yamanaka, Manami Mori, Shigeo Sato, Akihiko Chiba
THERMEC' 2018, Cité des Sciences et de l’industrie   13 Aug 2018   
Microstructure refinement due to reverse transformation heat treatment for Bio-medical Co-Cr-Mo alloy fabricated by additive manufacturing with electron beam melting
Hao Wang, Toshimi Miyagi, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba, Hideki Sudo
13th International Workshop on Biomaterials in Interface Science   3 Aug 2018   
3D Printing, especially electron beam additive manufacturing technology in Japan [Invited]
CHIBA Akihiko
The Fifth World 3D Printing Industry Conference   17 Jun 2018   
Metal 3D Printing R&D on Industrial Application [Invited]
CHIBA Akihiko
International Conference on Metal 3D Printing Technology and Application,2018   12 Jun 2018   
Mechanical properties and microstructure study on for different high-entropy alloys
Cheng Yang, Kenta Aoyagi, Akihiko ChibaCHIBA Akihiko
23 May 2018   
Thermostability of 9-12Cr Heat Resistant Steels
Tack Lee, Kenta Aoyagi,CHIBA Akihiko
23 May 2018   
Exploration of Preheating Temperature Control Techniques for Simultaneously Removing Residual Stresses and “Smoke” in Additive Manufacturing with Electron Beam Melting (EBM)
Akihiko Chiba, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka
EBAM 2018   12 Apr 2018   
Development of Informatics Approach to Determine the Process Window for Electron Beam Melting Process: Demonstration in CoCrMo alloy
Kenta Aoyagi, Hao Wang, Akihiko Chiba, Hideki Sudo
EBAM 2018   11 Apr 2018   
Microstructure homogenization and mechanical property improvement of electron beam melting fabricated biomedical CoCrMo alloy
20 Mar 2018   
Solidification Conditions in Molten Pool with Dynamic Fluid Flow in Electron Beam Melting of Co-Cr-Mo Alloy
20 Mar 2018   
Improvement of mechanical properties and bioactivity of biomedical Co-Cr-Mo alloy fabricated by electron beam melting
20 Mar 2018   
Heat Resistant Ti Based Alloy with Dispersed TiB Particles Utilizing Additive Manufacturing by Selective Electron Beam Melting [Invited]
Tadashi Fujieda (Hitachi), Yujie Cui, Kenta Aoyagi, Yuichiro Koizumi, Akihiko Chiba
TMS 2018   15 Mar 2018   
Mechanical and Corrosion Properties of CoCrFeNiTi-based High-entropy Alloy Additive Manufactured Using Selective Laser Beam Melting [Invited]
Tadashi Fujiedashi, Meichuan Chen, Hiroshi Shiratori, Kosuke Kuwabara, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, Seiichi Watanabe
TMS 2018   15 Mar 2018   
Revealing Martensite Decomposition in Ti-6Al-4V Alloys Additively Manufactured with Electron Beam Melting by X-ray and Neutron Diffraction
TMS 2018   14 Mar 2018   
Evolution of Stacking Faults during Thermomechanical Processing of Biomedical Co–Cr–Mo Alloys Studied by X-ray Diffraction Line-profile Analysis
Kenta Yamanaka, Manami Mori, Kazuo Yoshida, Shigeo Sato, Akihiko Chiba
TMS 2018   13 Mar 2018   
Effect of Post-processing on Fatigue Strength of Ti-6Al-4V Alloy Fabricated by Electron Additive Manufacturing [Invited]
CHIBA Akihiko
ICMSE-RAC 2018   11 Mar 2018   
Influence of the composition on properties of Co based alloys
A. Chiba, D. Fabrègue
ElyT Workshop 2018   7 Mar 2018   
Effects of post-processing on fatigue strength of Ti-6Al-4V alloy fabricated by electron beam additive manufacturing [Invited]
CHIBA Akihiko
2017 International Top-Level Forum on Engineering Science and Technology Development Strategy – Additive Manufacturing   11 Dec 2017   
Numerical Investigations on Fusion Process in Electron Beam Melting of Biomedical Co‐Cr‐Mo Alloy
Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba
10 Nov 2017   
Effects of post-processing on tensile and fatigue properties of biomedical Co-28Cr-6Mo and Ti-6Al-4V alloys fabricated by electron beam additive manufacturing
•Akihiko Chiba, Yuichiro Koizumi, Kenta Yamanaka, Kenta Aoyagi, Hao Wang
JSPM International Conference on Powder and Powder Metallurgy (JSPMIC2017)   8 Nov 2017   
Effects of post-processing on tensile and fatigue properties of biomedical Co-28Cr-6Mo and Ti-6Al-4V alloys fabricated by electron beam additive manufacturing
Akihiko Chiba, Yuichiro Koizumi, Kenta Yamanaka, Kenta Aoyagi, Hao Wang
粉体粉末冶金協会国際会議   6 Nov 2017   
Effects of post-processing on fatigue strength of Ti-6AI-4V alloy fabricated by electron beam additive manufacturing [Invited]
CHIBA Akihiko
ICOMMET2017   30 Oct 2017   
Process optimization for additively manufactured industrial and biomedical metal parts by using electron beam melting
Y.Koizumi,K.Yamanaka,K.Aoyagi
METALLURGY MATERIAL 2   24 Oct 2017   
Contribution of stacking faults on strengthening of biomedical Co-Cr-Mo alloys studied by X-ray diffraction line-profile analysis
Kenta Yamanaka, Manami Mori, Shigeo Sato, Akihiko Chiba
Materials Science and Technology 2017 (MS&T17)   11 Oct 2017   
Mechanical and Corrosion Properties of CoCrFeNiTi-based High-entropy Alloy Additive Manufactured Using Selective Laser Beam Melting
Tadashi Fujieda, Hiroshi Shiratori, Kosuke Kuwabara, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, Seiichi Watanabe
Materials Science and Technology 2017 (MS&T17)   10 Oct 2017   
Decomposition of α’ martensite of Ti−6Al−4V alloy during electron beam melting
Kenta Yamanaka, Manami Mori, Shigeo Sato, Yusuke Onuki, Akihiko Chiba
Materials Science and Technology 2017 (MS&T17)   9 Oct 2017   
Process optimization for additively manufactured industrial and biomedical metal parts by using electron beam melting [Invited]
CHIBA Akihiko
Forum on Novel 3D Printing Technologies in Customized Medical Devices   27 Sep 2017   
Effects of post-processing on fatigue strength of Ti-6Al-4V alloy fabricated by electron beam additive manufacturing [Invited]
CHIBA Akihiko
PMTi207 4th International Conference on Titanium Powder Metallurgy & Additive manufacturing   9 Sep 2017   
鋳造用耐熱合金IN-713Cの熱間加工特性
川﨑 健太郎, 青柳 健大, 山中 謙太, 韓 剛, 千葉 晶彦
日本金属学会2017年秋期(第161回)講演大会   6 Sep 2017   
Ti-17合金の高温変形挙動に及ぼす初期組織の影響
山中 謙太, 松本 洋明, 千葉 晶彦
日本金属学会2017年秋期(第161回)講演大会   6 Sep 2017   
Fe-Ni合金への積層造形用電子ビーム照射により形成される溶融凝固組織の解析
倉田 宗明, 小泉 雄一郎, 千葉 晶彦
日本金属学会2017年秋期(第161回)講演大会   6 Sep 2017   
MoSi2/Mo5Si3共晶合金の組織形成と界面偏析のフェーズフィールドシミュレーション
小泉 雄一郎, 山﨑 敏広, 朱 伝奇 , 千葉 晶彦, 弓削 是貴, 岸田 恭輔, 乾 晴行
日本金属学会2017年秋期(第161回)講演大会   6 Sep 2017   
CA法による凝固マップの作成と金属積層造形プロセス設計での利用方法
青柳 健大, 千葉 晶彦
日本金属学会2017年秋期(第161回)講演大会   6 Sep 2017   
動的変態を用いた超微細ε組織を有する生体用Co-Cr合金の創製
山中 謙太, 森 真奈美, 永田 翔, 倉本 浩二, 千葉 晶彦
日本金属学会2017年秋期(第161回)講演大会   6 Sep 2017   
電子ビーム積層造形によって作製された生体用CoCrMo合金の逆変態熱処理による組織微細化
王 昊, 青柳 健大, 山中 謙太, 千葉 晶彦, 須藤 英毅
日本金属学会2017年秋期(第161回)講演大会   6 Sep 2017   
電子ビーム積層造形で作製した12Cr耐熱鋼の機械的特性
李 澤, 青柳 健大, 千葉 晶彦, 大西 春樹
日本金属学会2017年秋期(第161回)講演大会   6 Sep 2017   
Solidification Analysis of Ni Based Superalloy Melted by Electron Beam for Additive Manufacturing
Yuichiro Koizumi, Yushi Ohno, Yufan Zhao, Akihiko Chiba
The 14th U.S. National Congress on Computational Mechanics (USNCCM14)   18 Jul 2017   
Molten Pool Behavior and Solidification Microstructure of Co-Cr-Mo Alloy in Powder-Bed Electron Beam Additive Manufacturing
Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Daixiu Wei, Akihiko Chiba
Minisymposium: Modeling and Simulation in Additive Manufacturing, The 14th U.S. National Congress on Computational Mechanics (USNCCM14)   18 Jul 2017   
粉末積層造形を利用した組織制御の可能性:力学特性の面内異方性を低減した純チタン板材の作製
山中 謙太, 森 真奈美, 斎藤 航, 千葉 晶彦
日本塑性加工学会平成29年度塑性加工春季期講演会   9 Jun 2017   
金属積層造形用電子ビーム走査によるNi基超合金の凝固組織解析
大野 雄史, 小泉 雄一郎, 千葉 晶彦
日本金属学会2017年春期(第160回)講演大会   17 Mar 2017   
液体急冷の凝固プロセスから予測される電子ビーム積層造形の溶融凝固プロセス
王 昊, 青柳 健大, 山中 謙太, 小泉 雄一郎, 千葉 晶彦
日本金属学会2017年春期(第160回)講演大会   17 Mar 2017   
マルチフェールフィールド法によるチタン合金の積層造形凝固組織解析
下野 祐典, 大場 一輝 , 野村 裕子, 野本 祐春, 小泉 雄一郎, 千葉 晶彦
日本金属学会2017年春期(第160回)講演大会   17 Mar 2017   
Characterization of multi-layer structural Commercially Pure Titanium(CP-Ti)Fabricated by Electron beam melting (EBM)
王 曉瑜, 山中 謙太, 千葉 晶彦
日本金属学会2017年春期(第160回)講演大会   17 Mar 2017   
Effect of micro-alloying element addition on solidification structure in polycrystalline Inconel 713C alloy
康 東洙, 小泉 雄一郎, 山中 謙太, 青柳 健大, 千葉 晶彦
日本金属学会2017年春期(第160回)講演大会   16 Mar 2017   
金属積層造形技術による人工関節などの医療機器製造の可能性
千葉 晶彦, 小泉 雄一郎, 山中 謙太, 青柳 健大
日本金属学会2017年春期(第160回)講演大会   16 Mar 2017   
電子ビーム積層造形(EBM)した生体用Co-Cr-Mo合金の組織と晶析出物分析
小泉 雄一郎, 魏 代修, 山中 謙太, 千葉 晶彦, 植木 洸輔, 上田 恭介, 成島 尚之
日本金属学会2017年春期(第160回)講演大会   16 Mar 2017   
電子ビーム積層造形された生体用Co-Cr-Mo合金の組織と耐食性への影響
堤 祐介, 塙 隆夫, 大石 達也, 下条 雅幸, 魏 代修, 小泉 雄一郎, 千葉 晶彦
日本金属学会2017年春期(第160回)講演大会   16 Mar 2017   
電子ビーム積層造形コバルトクロム合金の熱処理による疲労特性向上
鈴木 もえ, 久森 紀之, 小泉 雄一郎, 千葉 晶彦, 魏 代修
日本金属学会2017年春期(第160回)講演大会   16 Mar 2017   
高効率な金属積層造形プロセス最適化手法
青柳 健大, 王 昊, 千葉 晶彦
日本金属学会2017年春期(第160回)講演大会   16 Mar 2017   
Investigation on Molten Pool Behavior and Solidification Microstructure in Electron Beam Melting of Co-Cr-Mo alloy
趙 宇凡, 小泉 雄一郎, 青柳 健大, 山中 謙太, 千葉 晶彦
日本金属学会2017年春期(第160回)講演大会   16 Mar 2017   
Nano Porous Structure in Biomedical Co-Cr-Mo Alloy Fabri- cated by Solid-liquid Interfacial Reaction
魏 代修, 小泉 雄一郎, 黒田 健介, 興戸 正純, 千葉 晶彦
日本金属学会2017年春期(第160回)講演大会   16 Mar 2017   
マルテンサイト変態と転位による強化機構の同時解析を指向した中性子回折法の確立
佐藤 成男, 中川 真惟子, 小貫 祐介, 山中 謙太, 森 真奈美, 千葉 晶彦
日本鉄鋼協会第173回春期講演大会シンポジウム「中性子・X線回折、散乱法による金属ミクロ組織解析の課題と展望」,   15 Mar 2017   
Microstructure and Mechanical Properties Evolution of Biomedical Co-Cr-Mo Alloys Produced by Electron Beam Additive Manufacturing
Akihiko Chiba
2017 TMS Annual Meeting & Exhibition   26 Feb 2017   
Mechanical and Corrosion Properties of CoCrFeNiTi-based High-entropy Alloy Additive Manufactured Using Selective Electron Beam Melting
Tadashi Fujieda, Hiroshi Shiratori, Kosuke Kuwabara, Mamoru Hirota, Takahiko Kato, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba
2017 TMS Annual Meeting & Exhibition   26 Feb 2017   
A Novel Strengthening Strategy Using Stacking Faults for Biomedical Co–Cr–Mo Alloys
Kenta Yamanaka, Manami Mori, Shigeo Sato, Akihiko Chiba
2017 TMS Annual Meeting & Exhibition   26 Feb 2017   
Molten Pool Behavior and its Physical Mechanism during Electron Beam Melting of Co-Cr-Mo Alloy by Numerical Simulation
Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba
日本塑性加工学会 東北・北海道支部 若手研究発表会   10 Dec 2016   
Corrosion Resistance and Pasive Film Formation of Cu-modified Ni-Based Alloy in Hydrofluoric Acid
C. Zhang, K. Yamanaka, Y. Koizumi, A. Chiba
日本塑性加工学会 東北・北海道支部 若手研究発表会   10 Dec 2016   
Orientation Dependence of Cyclic Deformation Behavior of Mg85Zn6Y9 Alloy with 18R Long-Period Stacking-Ordered Structure
Yuichiro Koizumi, Kotaro Sano, Akihiko Chiba, Koji Hagihara, Yoshihito Kawamura
LPSO 2016   6 Dec 2016   
Phase Field Simulation of Microstructure Formation in MoSi2-Based Dual Phase Alloys
Yuichiro Koizumi, Toshihiro Yamazaki, Akihirko Chiba, Koretaka Yuge, Kyosuke Kishida, Haruyuki Inui, Koji Hagihara, Takayoshi Nakano
Phase Field Simulation of Microstructure Formation in MoSi2-Based Dual Phase Alloys", 2016 MRS Fall Meeting & Exhibit   27 Nov 2016   
材料組織制御を志向した積層造形用電子ビーム走査によるNi基超合金の溶融凝固組織解析
大野 雄史, 小泉 雄一郎, 千葉 晶彦
第132回金属材料研究所講演会   24 Nov 2016   
電子ビーム積層造形法により付与した表面構造が熱遮蔽被覆の耐剥離性へ及ぼす影響
冨永 皓祐, 小泉 雄一郎, 藤枝 正, 千葉 晶彦
第132回金属材料研究所講演会   24 Nov 2016   
積層造形用電子ビームによる溶融・凝固で形成されたNi基超合金の組織
垣内 俊平, 小泉 雄一郎, 千葉 晶彦, 尾崎 智道
第132回金属材料研究所講演会   24 Nov 2016   
電子ビーム積層造形を用いて作製した純チタン及びTi-6Al-4V合金のX線・中性子回折を用いた組織評価
山中 謙太, 森 真奈美, 小貫 祐介, 佐藤 成男, 千葉 晶彦
第132回金属材料研究所講演会   24 Nov 2016   
Inconel718合金の電子ビーム積層造形における材料組織制御
小泉 雄一郎, 丁 笑, 孫 世海, 齋藤 毅, 青柳 健大, 山中 謙太, 山崎 敏広, 千葉 晶彦, 下野 祐典, 野本 祐春
Inconel718合金の電子ビーム積層造形における材料組織制御   9 Nov 2016   
積層造形用電子ビームによる溶融で形成されたNi基超合金の凝固組織
垣内 俊平, 小泉 雄一郎, 千葉 晶彦, 尾崎 智道
粉体粉末冶金協会平成28年度秋季大会   9 Nov 2016   
材料組織制御を志向した積層造形用電子ビーム走査によるNi基超合金の溶融凝固解析
大野 雄史, 小泉 雄一郎, 千葉 晶彦
粉体粉末冶金協会平成28年度秋季大会   9 Nov 2016   
X線・中性子回折による電子ビーム積層造形を用いて作製した純チタン及びTi-6Al-4V合金の組織評価
山中 謙太, 森 真奈美, 小貫 祐介, 佐藤 成男, 千葉 晶彦
粉体粉末冶金協会平成28年度秋季大会   9 Nov 2016   
電子ビーム積層造形法により付与した表面構造が熱遮蔽被覆の耐剥離性へ及ぼす影響
冨永 皓祐, 小泉 雄一郎, 千葉 晶彦, 藤枝 正
粉体粉末冶金協会平成28年度秋季大会   9 Nov 2016   
Characterization of Commercially Pure Titanium (CP-Ti) Fabricated by Electron Beam Melting (EBM)
Xiaoyu Wang, Kenta Yamanaka, Keisuke Shinzawa, Akihiko Chiba
粉体粉末冶金協会平成28年度秋季大会   9 Nov 2016   
Numerical Assessment of Dominant Factor on Powder Bed Fusion in Electron Beam Melting of Co-Cr-Mo Alloy
Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba
粉体粉末冶金協会平成28年度秋季大会   9 Nov 2016   
Characteristics of Ni based superalloy fabricated by electron beam melting
D.-S. Kang, Y. Koizumi, K. Yamanaka, A. Chiba
2016 Russia-Japan conference "Advanced Materials: Synthesis, Processing and Properties of Nanostructures   30 Oct 2016   
Copper Influence on Corrosion Resistance to HF Acid Solution of Cu-modified Ni-Co-Cr-Mo Alloys
Y. Hou, Y. Li, A. Chiba
Advanced Materials: Synthesis, Processing and Properties of Nanostructures   30 Oct 2016   
Modeling and Simulation of Electron Beam Additive Manufacturing for Biomedical Co-Cr-Mo Alloy
Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba
The International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation in conjunction with symposium on the research activities of Joint Usage / Research Center on Joining and Welding & The 1st International   17 Oct 2016   
Cellular lattice of biomedical Co-Cr-Mo alloy fabricated by electron beam melting
Yuichiro Koizumi, Arata Okazaki, Akihiko Chiba, Takahiko Kato, Akihiro Takezawa
The International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation in conjunction with symposium on the research activities of Joint Usage / Research Center on Joining and Welding & The 1st International   17 Oct 2016   
Microstructure and Creep Behavior of Alloy 718 Fabricated by Electron-Beam Melting
Yuichiro Koizumi, Shi-Hai Sun, Xiao Ding, Akihiko Chiba
The International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation in conjunction with symposium on the research activities of Joint Usage / Research Center on Joining and Welding & The 1st International   17 Oct 2016   
Microstructure Control of Alloy 718 Additively Manufactured by Selective Electron-Beam Melting
Yuichiro Koizumi, Shi-Hai Sun, Xiao Ding, Kenta Yamanaka, Kenta Aoyagi, Akihiko Chiba
10th International Conference on Trends in Welding Research & 9th International Welding Symposium of Japan Welding Society (9WS)   13 Oct 2016   
Microstructure and Mechanical Properties Evolution of Biomedical Co-Cr-Mo Alloys Produced by Manufactured by Electron Beam Additive Manufacturing
Akihiko Chiba, Kenta Yamanaka, Yuichiro Koizumi
Global/Local Innovations for Next Generation Automobiles 2016   11 Oct 2016   
Microstructure and Mechanical Properties Evolution of Biomedical Co-Cr-Mo Alloys Produced by Manufactured by Electron Beam Additive Manufacturing
Akihiko Chiba, Kenta Yamanaka, Yuichiro Koizumi
Global/Local Innovations for Next Generation Automobiles 2016   10 Oct 2016   
Microstructure and Mechanical Properties Evolution of Biomedical Co-Cr-Mo Alloys Manufactured by Electron Beam Additive Manufacturing
Akihiko Chiba
TFC ELyT Off-campus Workshop for Intensive Discussions   6 Oct 2016   

Research Grants & Projects

 
生体用コバルト合金の実用化に関する研究
The Other Research Programs
Project Year: Apr 1999 - Today

Patents

 
特許第5736140号 : Co-Ni基合金およびその製造方法
千葉晶彦、大友拓磨 赤坂康則、小林智生、菅原量
特開2015-59239 : Ni基超耐熱合金の分塊用中間素材及びその製造方法、Ni基超耐熱合金の製造方法
国立大学法人東北大学 千葉晶彦 日立金属株式会社安来工場 上野友典 日立金属株式会社 佐藤光司
特開2014-74227 : Co-Cr-W基合金熱間加工材、焼鈍材、鍛造材、均質化熱処理材、及びCo-Cr-W基合金熱間加工材の製造方法、焼鈍材の製造方法
山中謙太、千葉晶彦
特許第5481718号 : 粉末冶金用金属粉末の製造方法
中村英文、千葉晶彦
特開2014-9393 : α+β型Ti合金およびその製造方法
松本洋明、千葉晶彦(東北大学) 李尚学、小野芳樹(日本発條株式会社)

Social Contribution

 
Forum on Novel 3D Priting Technologies in Customized Medical Devices
[Others]  11 Dec 2017
3D Printing Technologies and Medical Applications in Japan
日本真空学会2017年12月研究例会
[Others]  5 Dec 2017
電子ビーム積層造形技術と構造部品の特性評価
3Dプリンタ最前線セミナー2017
[Others]  4 Dec 2017
金属積層造形技術の研究開発動向と実用例
モノづくりマッチングJAPAN2017
[Others]  29 Nov 2017 - 1 Dec 2017
「TRAFAM内東北大学仙台分室」(ポスター・造形物)展示
日本真空学会産学連携委員会11月例会
[Others]  27 Nov 2017
最先端金属積層造形(金属3Dプリンタ)の紹介
ー電子ビーム積層造形技術を中心としてー

Others

 
Aug 2010
地域イノベーションクラスタープログラム(グローバル型)「「いわて発」高付加価値コバルト合金によるイノベーションクラスターの形成」研究統括
Aug 2011
財団法人いわて産業振興センター(戦略的基盤技術高度化支援事業)「CAD/CAM技術を応用した歯科補綴物に適する生体用コバルト合金圧延材の製造技術の開発」総括研究代表者
Jan 2014   高特性非接触型電磁ブレーキ用FCC材の実用化研究
高特性非接触型電磁ブレーキ用FCC材の実用化研究
Oct 2013   歯科用高クロム高窒素コバルト合金における窒素濃度制御技術の確立
歯科用高クロム高窒素コバルト合金における窒素濃度制御技術の確立
Sep 2013   電子ビーム積層造形法と精密切削加工技術の融合による衛星用スラスタ部品の開発
電子ビーム積層造形法と精密切削加工技術の融合による衛星用スラスタ部品の開発