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Harjo, S.; Aizawa, Kazuya; Kawasaki, Takuro
Nihon Zairyo Gakkai Dai-53-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.88 - 90, 2019/07
TAKUMI is a neutron diffractometer installed for promoting the field of engineering materials in scientific and industrial applications in Materials and Life Science Experimental Facility of J-PARC. TAKUMI covers ex situ and/or in situ measurements of residual stresses in engineering parts, microstructural evolutions during deformations and/or thermal processes, during manufacturing and/or during service, and texture. Current status of TAKUMI will be briefly introduced; (i) instrument specifications, (ii) covering applications, (iii) unique sample environmental devices and available experiments, (iv) research examples.
Xu, P. G.; Hoshikawa, Akinori*; Hayashi, Makoto*; Akita, Koichi; Morii, Yukio*; Ishigaki, Toru*
Nihon Zairyo Gakkai Dai-48-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.7 - 9, 2014/07
Xu, P. G.; Akita, Koichi; Suzuki, Hiroshi; Moriai, Atsushi; Suzuki, Tetsuya*; Yukutake, Eitaro*
Nihon Zairyo Gakkai Dai-46-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.24 - 27, 2012/07
Akita, Koichi; Miyashita, Daisuke*; Takeda, Kazuya*; Oya, Shinichi*; Shobu, Takahisa; Sano, Kenji*; Saito, Toshiyuki*
Nihon Zairyo Gakkai Dai-44-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.46 - 50, 2010/07
Relaxation process of surface compressive residual stress during tensile or compressive loading on a laser peened aluminum alloy was investigated. The residual stress was measured by X-ray, synchrotron and neutron diffractions and analyzed by a finite element method. The relaxation process clarified in this study was described as follows. When the tensile loading was increased, plastic deformation was occurred at the tensile residual stress region that existed inside of the material to be balanced with the surface compressive residual stress. On the other hand, when the compressive loading was applied, the plastic deformation was started at the maximum compressive residual stress region located just beneath the surface. Because the plastic deformation of the inside of the material induced the redistribution of the residual stress in the sample, the surface compressive residual stress was relaxed prior to the surface yielding.
Takeda, Kazuya*; Oishi, Masayuki*; Akita, Koichi; Oya, Shinichi*; Sano, Kenji*; Saito, Toshiyuki*
Nihon Zairyo Gakkai Dai-44-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.51 - 55, 2010/07
Effects of compressive residual stress on fatigue strength on a laser peened aluminum alloy were investigated. The changes of the compressive residual stress were measured using X-ray diffraction. The residual stress was relaxed at the first loading cycle and after that the residual stress was almost kept until the final fracture. The number of fatigue cycles to failure could be predicted quantitatively if the compressive residual stress after the first loading cycle was estimated.
Machida, Akihiko; Saito, Hiroyuki; Katayama, Yoshinori; Aoki, Katsutoshi
Nihon Zairyo Gakkai Dai-46-Kai X Sen Zairyo Kyodo Ni Kansuru Toronkai Koen Rombunshu, p.9 - 13, 2010/01
no abstracts in English
Minakawa, Nobuaki; Moriai, Atsushi; Morii, Yukio
Nihon Zairyo Gakkai Dai-38-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.202 - 205, 2002/09
no abstracts in English
Moriai, Atsushi; Kogawa, Hiroyuki; Yamamoto, Kazuyoshi; Kaminaga, Masanori; Minakawa, Nobuaki; Horiguchi, Yoji
Nihon Zairyo Gakkai Dai-37-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.35 - 37, 2001/00
no abstracts in English
Minakawa, Nobuaki; Moriai, Atsushi; Morii, Yukio; Saito, Toru*
Nihon Zairyo Gakkai Dai-37-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.220 - 222, 2001/00
no abstracts in English
Minakawa, Nobuaki; Saito, Toru; Morii, Yukio; Sasaki, Toshihiko*; Hirose, Yukio*
Nihon Zairyo Gakkai Dai-36-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.253 - 258, 2000/09
no abstracts in English
Minakawa, Nobuaki; Moriai, Atsushi; Saito, Toru; Tanaka, Keisuke*; Akiniwa, Yoshiaki*; Hayashi, Makoto*; Okido, Shinobu*
Nihon Zairyo Gakkai Dai-36-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.263 - 265, 2000/09
no abstracts in English
Sasaki, Toshihiko*; Minakawa, Nobuaki; Morii, Yukio; Niimura, Nobuo; Hirose, Yukio*
Nihon Zairyo Gakkai Dai-36-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.259 - 262, 2000/09
no abstracts in English
Takago, S.*; Sasaki, Toshihiko*; Minakawa, Nobuaki; Morii, Yukio; Hirose, Yukio*
Nihon Zairyo Gakkai Dai-36-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.266 - 271, 2000/09
no abstracts in English
Minakawa, Nobuaki; Moriai, Atsushi; Otomo, Akitoshi; Rifai*
Nihon Zairyo Gakkai Dai-36-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.272 - 275, 2000/09
no abstracts in English
Kondo, Tatsuo; Nakajima, Hajime
Nihon Zairyo Kyodo Gakkai Koen Rombunshu, p.101 - 125, 1983/00
no abstracts in English