Shigeru Doi
Oita University
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Publication
Featured researches published by Shigeru Doi.
International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering | 1999
Shujiro Uesaka; Shigeru Doi; Koichi Mitsunaga
With a gas carburizing treatment processed to a pearlitic spherical graphite cast iron, investigations were carried out about its high cycle fatigue characteristics and wear resistance. The high cycle fatigue characteristics were evaluated by its rotary bending fatigue test, and fatigue strength was improved about 20 MPa greater than in test pieces before they are carburized. The starting point of fracture is from graphites in the vicinity of surface or from microdefects in casting, and a fracture mechanism of which starting point is in its internal part was not found. Furthermore, a better result was obtained in the wear resistance test than in that of austempered spherical graphite cast iron. Those were expressed by the difference of matrix structures.
Transactions of the Japan Society of Mechanical Engineers. A | 1995
Shigeru Doi; Koichi Mitsunaga; Kenichi Matsufuji
The proceedings of the JSME annual meeting | 2000
Shigeru Doi; Kenichi Kawabata; Shujiro Uesaka
Transactions of the Japan Society of Mechanical Engineers. A | 1998
Shigeru Doi; Hideo Ikeda; Shujirou Uesaka; Kouichi Mitsunaga
Transactions of the Japan Society of Mechanical Engineers. A | 1997
Shigeru Doi; Yasunari Mimura; Katsuyuki Sato; Takeshi Hiroyasu; Hideo Ikeda
大分大学工学部研究報告 | 1996
Takeshi Hiroyasu; Shigeru Doi
Transactions of the Japan Society of Mechanical Engineers. A | 1996
Shigeru Doi; Syoji Harada; Masao Takahara; Takeshi Hiroyasu; Hideo Ikeda
Transactions of the Japan Society of Mechanical Engineers. A | 1995
Shigeru Doi; Koichi Mitsunaga; Kenichi Matsufuji; Takeshi Hiroyasu
Archive | 1995
Shigeru Doi; Kenichi Matsufuji; Koichi Mitsunaga; Masao Takahara
Transactions of the Japan Society of Mechanical Engineers. A | 1994
Shigeru Doi; Koichi Mitsunaga; Satoru Ishimoto
