Yamamoto Motomichi

J-GLOBAL         Last updated: Jun 4, 2019 at 03:10
 
Avatar
Name
Yamamoto Motomichi
E-mail
motoyamahiroshima-u.ac.jp
Affiliation
Hiroshima University
Degree
Doctor of Engineering(Hiroshima University), Master of Engineering(Hiroshima University)
Research funding number
30274111

Profile

Welding researcher

Academic & Professional Experience

 
Apr 1995
 - 
Mar 2001
Research Associate, Faculty of Engineering, Hiroshima University
 
Apr 2001
 - 
Apr 2001
Research Associate, Graduate School of Engineering, Hiroshima University
 
Apr 2008
 - 
Apr 2008
Associate Professor, Graduate School of Engineering, Hiroshima University
 
Apr 2006
 - 
Mar 2007
Visiting Researcher, Department of Material Science and Engineering, Faculty of Applied Science and Engineering, University of Toronto
 

Education

 
Apr 1993
 - 
Mar 1995
Graduate School, Division of Engineering, Hiroshima University
 
Apr 1989
 - 
Mar 1993
Faculty of Engineering, Hiroshima University
 

Awards & Honors

 
1993
Student award
 
Apr 2003
Presentation award 2003
 
May 2006
Outstanding young researcher award 2006
 
May 2007
Best Paper Award
 
Apr 2008
Best paper award for young researcher
 

Published Papers

 
Yamamoto, Motomichi; Gerlich, Adrian; North, Thomas H.; Shinozaki, Kenji
JOURNAL OF MATERIALS SCIENCE   42(18) 7657-7666   Sep 2007   [Refereed]
Liquid penetration induced (LPI) cracking is investigated during friction stir spot weld of AZ91, AZ31 and AM60 magnesium alloys. A combination of stir zone temperature measurement and detailed metallography has revealed differences in the crackin...
Gerlich, A.; Yamamoto, M.; North, T. H.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE   38A(6) 1291-1302   Jun 2007   [Refereed]
The stir zone temperature and microstructures are compared in friction stir spot welds produced in Al 5754 and Al 6061 alloys. Electron backscattered diffraction was used to determine the relationship between tool rotation speed during welding and...
Gerlich, A.; Yamamoto, M.; North, T. H.
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING   12(6) 472-480   Nov 2007   [Refereed]
Local melting of eutectic films and cracking is found in Al 2024 and Al 7075 alloy friction stir spot welds. Dissolution of melted films removes all evidence melted film formation in spot welds made using typical welding parameter settings. For th...
Yamamoto, M.; Gerlich, A.; North, T. H.; Shinozaki, K.
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING   13(7) 583-592   Oct 2008   [Refereed]
Cracking during dissimilar friction stir spot welding of thixomoulded AM60 and AZ91 sheet materials is investigated. Liquation cracking occurs in the thermomechanically affected zone (TMAZ) region during friction stir spot welding when AZ91 materi...
Yamamoto, M.; Gerlich, A.; North, T. H.; Shinozaki, K.
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING   13(7) 583-592   Oct 2008   [Refereed]
Cracking during dissimilar friction stir spot welding of thixomoulded AM60 and AZ91 sheet materials is investigated. Liquation cracking occurs in the thermomechanically affected zone (TMAZ) region during friction stir spot welding when AZ91 materi...

Research Grants & Projects

 
Minister of Economy Trade and Industry: Strategic Core Technology Advancement Program
Project Year: Sep 2015 - Feb 2016
MEXT: KAKENHI
Project Year: 2010 - 2011    Investigator(s): YAMAMOTO, Motomichi
The novel technology of vertical welding for a heavy joint as a alternative technology of electro-gas welding by using the new-type hot-wire laser welding method were developed. The prospects of ultra-low heat input, ultra-low dilution ratio, high...
Project Year: 2004 - 2005
MEXT: KAKENHI
Project Year: 2004 - 2006    Investigator(s): FUJIKUBO, Masahiko
An efficient method of progressive collapse analysis of ship structural members and systems was pursued in this study from two different aspects, one is the extension of Idealized Structural Unit Method (ISUM) and the other is the application of d...
Project Year: 2002 - 2003