Toko Tokunaga

Profile Information

Affiliation: Assistant Professor, Graduate School of Engineering Shikumi College, Nagoya Institute of Technology

Degree: 博士（工学）(北海道大学)
PhD(AGH科学技術大学)

Researcher number: 30767299
J-GLOBAL ID: 201501073214380903
researchmap Member ID: B000247139

Research Interests

Research Areas

Nanotechnology/Materials / Material fabrication and microstructure control /

Research History

Apr, 2021 - Present

Graduate School of Engineering, Nagoya Institute of Technology
Apr, 2021 - Mar, 2026

Assistant Professor, Graduate School of Engineering Shikumi College, Nagoya Institute of Technology
Oct, 2019 - Mar, 2021

Aomori prefecture Quantum Science Center
Jul, 2015 - Sep, 2019

Faculty of Engineering, Division of Materials Science and Engineering, Hokkaido University

Education

Apr, 2013 - Jun, 2015

Division of Materials Science and Engineering, Graduate School of Engineering,, Hokkaido University
Apr, 2013 - 2015

Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology
Apr, 2011 - Mar, 2013

Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University
Apr, 2007 - Mar, 2011

Department of Applied Science and Engineering, Faculty of Engineering, Hokkaido University

Committee Memberships

Apr, 2019 - Present

公益社団法人日本金属学会会報編集委員会委員
Mar, 2018 - Sep, 2019

公益社団法人日本金属学会北海道支部事務局幹事

Awards

Papers

Quantitative estimation of kink-band strengthening in an Mg–Zn–Y single crystal with LPSO nanoplates

Koji Hagihara, Ryohei Ueyama, Toko Tokunaga, Michiaki Yamasaki, Yoshihito Kawamura, Takayoshi Nakano

Materials Research Letters, 9(11) 467-474, Nov 2, 2021
Control of kink-band formation in mille-feuille structured Al/Al2Cu eutectic alloys

Koji Hagihara, Toko Tokunaga, Katsuaki Nishiura, Shohei Uemichi, Shuhei Ohsawa

Materials Science and Engineering: A, 825 141849-141849, Sep, 2021
Development of High Corrosion- and Wear-Resistant Al-Si Alloy Coating on AZ80 Mg Alloy by Hot Extrusion

Toko Tokunaga, Kazushi Sotomoto, Munekazu Ohno, Kiyotaka Matsuura

Journal of Materials Engineering and Performance, 29(10) 6355-6362, Oct, 2020 Peer-reviewed
Microstructure refinement and mechanical properties improvement of Al-Si-Fe alloys by hot extrusion using a specially designed high-strain die

Sakow Shino, Toko Tokunaga, Munekazu Ohno, Kiyotaka Matsuura

Journal of Materials Processing Technology, 277(116447) 1-9, 2020 Peer-reviewed
Enhancement of ductility for Al–Si–Fe alloy by refining β phase with a novel ball-die extrusion

Toko Tokunaga, Haruki Inubushi

SN Applied Sciences, 1(10) 1334, Oct, 2019 Peer-reviewed
Microstructure evolution during superplastic deformation of an Al-coated Mg alloy sheet

T. Tokunaga, M. Ohno

Journal of Alloys and Compounds, 805 436-443, 2019 Peer-reviewed
Fabrication of Al-Coated Mg-Li Alloy Sheet and Investigation of Its Properties

T. L. Zhang, T. Tokunaga, M. Ohno, M. L. Zhang, K. Matsuura

Acta Metallurgica Sinica (English Letters), 32 169-177, 2019 Peer-reviewed
Microstructure evolution in superplastic Al/Mg/Al clad sheet

T. Tokunaga, K. Matsuura, M. Ohno

Proceedings of 16th Inter-national Conference on Aluminum Alloys (ICAA16), 2018 Peer-reviewed
Coatings on Mg alloys and their mechanical properties (review)

T. Tokunaga, M. Ohno, K. Matsuura

Journal of Materials Science and Technology, 34(7) 1119-1126, 2018 Peer-reviewed
Brazed Bonding between SiAlON and heat-resistant alloys with application of filler materials

Toko Tokunaga, Masayuki Koshiyama, Kazuya Kurokawa, Munekazu Ohno, Kiyotaka Matsuura

Materials Transactions, 59(6) 969-975, 2018 Peer-reviewed
Fabrication of unidirectionally orientated carbon fiber reinforced cu-based composites by hot extrusion and evaluation of their thermal properties

Hiroto Kontani, Toko Tokunaga, Munekazu Ohno, Katsuhiko Sasaki, Kiyotaka Matsuura

Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, 82(5) 125-129, 2018 Peer-reviewed
Coating on magnesium alloy with super duralumin by hot extrusion and evaluation of its surface properties

Toko Tokunaga, Kazushi Sotomoto, Munekazu Ohno, Kiyotaka Matsuura

Materials Transactions, 59(3) 432-436, 2018 Peer-reviewed
Low temperature superplasticity of a dual-phase Mg-Li-Zn alloy processed by a multi-mode deformation process

T. L. Zhang, T. Tokunaga, M. Ohno, R. Z. Wu, M. L. Zhang

Materials Science & Engineering A, 737 61-68, 2018 Peer-reviewed
Coating on Magnesium Alloy with Super Duralumin by Hot Extrusion and Evaluation of Its Surface Properties

Toko Tokunaga, Kazushi Sotomoto, Munekazu Ohno, Kiyotaka Matsuura

JOURNAL OF THE JAPAN INSTITUTE OF METALS, 81(8) 389-393, 2017 Peer-reviewed
Fabrication of Carbon Fiber Oriented Al-Based Composites by Hot Extrusion and Evaluation of Their Thermal Conductivity

Toko Tokunaga, Koichi Takahashi, Munekazu Ohno, Katsuhiko Sasaki, Terumitsu Imanishi, Kiyotaka Matsuura

MATERIALS TRANSACTIONS, 58(6) 938-944, 2017 Peer-reviewed
Brazed Bonding between SiAlON and Heat-Resistant Alloys with Application of Filler Materials

Toko Tokunaga, Masayuki Koshiyama, Kazuya Kurokawa, Munekazu Ohno, Kiyotaka Matsuura

JOURNAL OF THE JAPAN INSTITUTE OF METALS, 81(3) 143-149, 2017 Peer-reviewed
Fabrication of Al-coated Mg alloy sheet and investigation of its mechanical properties

T. Tokunaga, M. Ohno, K. Matsuura

Journal of Functionally Graded Materials, 30 1-4, 2016 Peer-reviewed
Grain Refinement and Ductility Improvement by Hot Extrusion Using a Heteromorphic Die with Small Holes

Kaho Tomita, Toko Tokunaga, Munekazu Ohno, Kiyotaka Matsuura

MATERIALS TRANSACTIONS, 57(6) 927-934, 2016 Peer-reviewed
Fabrication of Carbon Fiber Oriented Al-Based Composites by Hot Extrusion and Evaluation of Their Thermal Conductivity

Toko Tokunaga, Koichi Takahashi, Munekazu Ohno, Katsuhiko Sasaki, Terumitsu Imanishi, Kiyotaka Matsuura

JOURNAL OF THE JAPAN INSTITUTE OF METALS, 80(10) 640-645, 2016 Peer-reviewed
Al被覆Mg合金薄板材の作製およびその機械的性質の調査

徳永透子, 大野宗一, 松浦清隆

Journal of Functionally Graded Materials, 30 1-4, 2016 Peer-reviewed

Misc.

青森県量子科学センターにおけるBNCT

Toko Tokunaga, Shingo Hachinohe, Hiroyoshi Kikuchi, Toyomi Baba

36(2) 62-63, Feb, 2021
芯のある研究者を目指して

徳永透子

まてりあ, 54(12) 639, 2015
アルミニウム被覆マグネシウム合金薄板の試作

徳永透子

日本鉄鋼協会日本金属学会両支部合同サマーセッション概要集, 2011, 2011 13-13, 2011

Presentations

LPSOナノプレートを含むマグネシウム合金におけるキンク帯強化

萩原幸司, 徳永透子, 山崎倫昭, 河村能人, 中野貴由

一般社団法人軽金属学会第141回秋期大会, Nov 13, 2021
Mg/LPSO二相合金におけるキンク帯形成挙動

徳永透子, 山崎倫昭, 眞山剛, 成本裕希, 木田大貴, 河村能人, 中野貴由, 萩原幸司

一般社団法人軽金属学会第141回秋期大会, Nov 13, 2021
The effect of recrystallization on the mechanical properties of ODS Fe-Mn-Cr-Al-C austenitic steels

Jiarui Liu, Haoran Wang, Hao Yu, Sosuke Kondo, Ryuta Kasada, Toko Tokunaga, Naoko Oono

日本金属学会2021年秋期第169回講演大会, Sep 14, 2021
硬X線光電子分光によるMg99.2Zn0.2Y0.6合金の電子状態解析

宮崎秀俊, 赤塚達吉, 木村耕治, 徳永透子, 江草大佑, 阿部英司, 林好一, 萩原幸司

日本金属学会2021年秋期第169回講演大会, Sep 14, 2021
FeCrAl-ODSフェライト合金のSPC-単軸クリープ試験互換性評価

大野直子, LIU Jiarui, 徳永透子, 笠田竜太, WAN Haoran, YU Hao

日本金属学会2021年秋期第169回講演大会, Sep 14, 2021
Mg/LPSO二相合金におけるキンク帯形成，機械的性質との相関

徳永透子, 山崎倫昭, 眞山剛, 成本裕希, 木田大貴, 河村能人, 中野貴由, 萩原幸司

日本金属学会2021年秋期第169回講演大会, Sep 14, 2021
Mg合金におけるキンク帯強化の定量的考察

萩原幸司, 徳永透子, 上山椋平, 中野貴由, 山崎倫昭, 河村能人

日本金属学会2021年秋期第169回講演大会, Sep 14, 2021
組織制御によるAl基新規ミルフィーユ材料の高強度化

上道捷平, 徳永透子, 萩原幸司

日本金属学会2021年秋期第169回講演大会, Sep 14, 2021
Development of aluminum-containing steel and its fusion application; (6) Development of Al-added high-Mn ODS austenitec stel for liquid metal environment

Ryuta Kasada, Wang Haoran, Liu Jiarui, Yu Hao, Sosuke Kondo, Yasuki Okuno, Nariaki Okubo, Toko Tokunaga, Naoko Oono

日本原子力学会 2021年春の年会, Mar, 2021
Study on creep behaviors of Fe-Mn-Cr-Al-C austenitic steels by small punch creep test

Jiarui LIU, Haoran WANG, Hao YU, Sosuke KONDO, Ryuta KASADA, Toko TOKUNAGA, Naoko OONO

Mar 16, 2021
Nb添加肌焼鋼のオーステナイト異常粒成長に及ぼす加熱速度の影響

髙野小春, 齊藤元貴, 徳永透子, 大野宗一, 松浦清隆, 佐野太一, 竹内正芳, 簔口光樹, 山岡拓也

2019年度日本金属学会秋期（第165回）講演大会, Sep 11, 2019
Nb添加肌焼鋼の高温浸炭中の異常粒成長

辻莉緒, 齊藤元貴, 徳永透子, 大野宗一, 松浦清隆, 山岡拓也

2019年度日本金属学会秋期（第165回）講演大会, Sep 11, 2019
Anisotropic behavior and related deformation mechanism of Al/Mg/Al clad sheet

Toko Tokunaga

The 10th Pacific Rim International Conference on Advanced Materials and Processing (PRICM10), Aug 20, 2019
Al/Mg/Alクラッド薄板材の超塑性特性

Toko Tokunaga

駒場材料学セミナー -材料組織と強度-, Aug 7, 2019 Invited
Abnormal austenite grain growth during quasi-carburizing in Nb-alloyed case hardening steel

K. Takano, G. Saito, T. Tokunaga, M. Ohno, K. Matsuura, T. Sano, M. Takeuchi, K. Minoguchi, T. Yamaoka

7th International Conference on Recrystallization and Grain Growth, Aug 5, 2019
肌焼鋼の高温浸炭における異常粒成長の発現機構の調査”

辻莉緒, 齊藤元貴, 徳永透子, 大野宗一, 松浦清隆, 竹内正芳, 佐野太一, 蓑口光樹, 山岡拓也

2019年度日本金属学会日本鉄鋼協会両支部合同サマーセッション, Jul 5, 2019
Al/Mg合金クラッド材の開発とその機械的特性に関する研究

Toko Tokunaga

日本鉄鋼協会材料の組織と特性部会若手フォーラム平成30年度第二回研究会フォーラム, Feb 13, 2019 Invited
Al/Mgクラッド薄板材の作製とその超塑性特性

Toko Tokunaga

第３回若手研究グループ「量子ビーム散乱測定による金属組織形成過程のマルチスケール解析研究」, Jan 21, 2019 Invited
Nb添加肌焼鋼のオーステナイト組織に及ぼす熱処理条件の影響Nb添加肌焼鋼のオーステナイト組織に及ぼす熱処理条件の影響

髙野小春, 齊藤元貴, 徳永透子, 大野宗一, 松浦清隆, 竹内正芳, 佐野太一, 蓑口光樹, 山岡拓也

平成30年度日本金属学会日本鉄鋼協会両支部合同冬季講演大会, Jan 10, 2019
Structure Refinement of a Mg-Li Alloy by a Multi Extrusion-Rolling Deformation Process and its Superplasticity

T. L. Zhang, T. Tokunaga, M. Ohno, K. Matsuura

平成30年度日本金属学会日本鉄鋼協会両支部合同冬季講演大会, Jan 10, 2019

Teaching Experience

Apr, 2021 - Present

Materials Function Seminar (Nagoya Institute of Technology)
Apr, 2021 - Present

Exercises in Physics 1 (Nagoya Institute of Technology)
創造工学 (北海道大学)
材料工学実験 (北海道大学)

Professional Memberships

Research Projects

Development of Ti-based super-high strength alloy by combination of fine and oriented microstructure control and phase stability

Grants-in-Aid for Scientific Research Grant-in-Aid for Research Activity Start-up, Japan Society for the Promotion of Science, Aug, 2021 - Mar, 2022
超塑性複合材料における応力と組織学的因子の動的相関の解明

科学研究費若手研究, 日本学術振興会, Apr, 2018 - Mar, 2021

徳永透子
熱処理型・非熱処理型Al合金/Mg合金複合材料の開発とその変形特性

2019年（平成31年）度研究補助金, 公益財団法人軽金属奨学会, Mar, 2019 - Mar, 2019

Toko Tokunaga
異形ダイス押出によるAl-Si合金の結晶粒微細化とその機械的性質への影響調査

平成30年度中長期需要・技術開発委員会特別研究助成, 一般社団法人日本アルミニウム協会, May, 2018 - Mar, 2019

Toko Tokunaga
異形ダイス押出加工によるAl-Si合金の共晶Si粒の微細化

平成31年度アルミニウム研究助成, 一般社団法人日本アルミニウム協会, Mar, 2019

Toko Tokunaga
The 10th Pacific Rim International Conference on Advanced Materials and Processing

2018年度国際会議等参加助成（後期）, 公益財団法人天田財団, Feb, 2019

Toko Tokunaga
Mg合金‐超ジュラルミン系の超軽量高強度複合材料の開発

公益財団法人天野工業技術研究所研究助成金, 公益財団法人天野工業技術研究所, Mar, 2017 - Apr, 2018

徳永透子
超高熱伝導率を有するAl基カーボンナノチューブ配向複合材料の開発

2017年（平成29年）度研究補助金, 公益財団法人軽金属奨学会, Mar, 2017 - Apr, 2018

徳永透子
異形ダイス押出加工によるリサイクルアルミニウム合金中の粗大介在物の無害化

平成２８年度「アルミニウム研究助成事業」, 一般社団法人日本アルミニウム協会, Apr, 2016 - Mar, 2018

徳永透子
超塑性材料／非超塑性材料クラッド材の変形挙動メカニズムの解明

日本学術振興会：科学研究補助金若手研究（B）, Apr, 2016 - Mar, 2018

徳永透子
第2回製造・材料工学に関する応用技術国際学会

平成３０年度大学院工学研究院若手研究員等海外渡航助成, 北海道大学, 2018

徳永透子
International Conference on Aluminum Alloys

国際会議等参加助成（後期）, 公益財団法人天田財団, 2018

徳永透子
16th International Conference Metal Forming 2016

2015年度国際会議等参加助成（後期）, 公益財団法人天田財団, Jan, 2016

Toko Tokunaga
2nd Edition Smart Materials & Surfaces Conference

海外交流補助金, 公益財団法人軽金属奨学会, Dec, 2015

Toko Tokunaga

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Papers

Misc.

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