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Journal Articles

Alloy design for improvement of ductility and toughness in magnesium alloy; First-principles-calculation approaches

Tsuru, Tomohito

Keikinzoku, 70(2), p.73 - 81, 2020/02

Elements strategy becomes important to investigate alternative materials of rare metals. I have dedicated to establish a new approach based on computational methods. In the present paper, I propose two approaches based on first-principles and theory of dislocations. These methods are introduced to magnesium alloys.

Journal Articles

Surface energy reduction by dissociative hydrogen adsorption on inner surface of pore in aluminum

Yamaguchi, Masatake; Tsuru, Tomohito; Ebihara, Kenichi; Itakura, Mitsuhiro

Keikinzoku, 68(11), p.588 - 595, 2018/11

no abstracts in English

Journal Articles

Interpretation of thermal desorption spectra of hydrogen from aluminum using numerical simulation

Ebihara, Kenichi; Yamaguchi, Masatake; Tsuru, Tomohito; Itakura, Mitsuhiro

Keikinzoku, 68(11), p.596 - 602, 2018/11

Hydrogen embrittlement (HE) is considered as one cause of stress corrosion cracking. HE is a serious problem in the development of high strength aluminum alloy as with steels. For understanding HE, it is inevitable to know hydrogen trapping states in the alloys and it can be identified using thermal desorption spectrometry of H. In this study, we numerically simulated thermal desorption spectra of hydrogen in aluminum for a cylindrical and a plate specimens and interpreted the desorption peaks included in them on the basis of the trap site concentration and the trap energy. As a result, we found that the peak at the lowest-temperature side can result from grain boundaries and confirmed that the reported interpretation for other peaks is reasonable. We also obtained the result showing the possibility that the trap site concentration of defects changes during heating the specimens. This result may give a suggestion for the interpretation of temperature desorption spectra of steels.

Journal Articles

Establishment and application of texture evaluation technical environment by angle dispersive neutron diffraction

Xu, P. G.; Akita, Koichi; Suzuki, Hiroshi; Moriai, Atsushi

Keikinzoku Gakkai Heisei-24-Nendo Dai-2-kai Kako To Netsu Shori Ni Yoru Yusen Hoi Seigyo Kenkyu Bukai Kokai Koenkai Shiryo, p.19 - 20, 2012/10

Journal Articles

Crystallographic observation of diffusional phase transformation behavior of a low alloy steel using neutron diffraction

Xu, P. G.; Tomota, Yo*; Vogel, S. C.*

Keikinzoku Gakkai Heisei-24-Nendo Dai-2-kai Kako To Netsu Shori Ni Yoru Yusen Hoi Seigyo Kenkyu Bukai Kokai Koenkai Shiryo, p.21 - 22, 2012/10

no abstracts in English

Journal Articles

Penetrant testing

Ooka, Norikazu; Ishii, Toshimitsu

Keikinzoku Yosetsu, 37(1), p.17 - 24, 1999/00

no abstracts in English

Journal Articles

X-ray radiography

Ooka, Norikazu;

Keikinzoku Yosetsu, 36(4), p.169 - 174, 1998/00

no abstracts in English

Journal Articles

Ultrasonic testing

Ooka, Norikazu;

Keikinzoku Yosetsu, 36(5), p.216 - 221, 1998/00

no abstracts in English

Journal Articles

Experiments on compatibility of U$$_{3}$$Si$$_{2}$$ and aluminium at high temperature in out-pile

Ooka, Norikazu; ; *; *

Keikinzoku Yosetsu, 28(8), p.339 - 347, 1990/08

no abstracts in English

Journal Articles

Journal Articles

Journal Articles

Trends of non destructive inspection

; ; ;

Keikinzoku Yosetsu, 25(9), p.29 - 39, 1987/09

no abstracts in English

Journal Articles

Study on application of contrastmeter in radiographic examination

; *; *

Keikinzoku Yosetsu, 24(3), p.108 - 116, 1986/00

no abstracts in English

Journal Articles

Study on application of contrastmeter in radiographic examination (II)

; *; *

Keikinzoku Yosetsu, 24(2), p.51 - 58, 1986/00

no abstracts in English

Journal Articles

Activation analysis of light metals

;

Keikinzoku, 23(5), p.227 - 237, 1973/05

no abstracts in English

Journal Articles

Technical discussion for radiographic examination of fusion welded circumferential but joints

Keikinzoku Yosetsu, (131), p.457 - 464, 1973/00

no abstracts in English

Journal Articles

The safety evaluation test of cold pressed Al capsule for radioisotope production

; ;

Keikinzoku Yosetsu Gijutsu Kaishi, (116), p.337 - 345, 1972/00

no abstracts in English

Journal Articles

Present Status of Leak Detecting Methods

;

Keikinzoku Yosetsu, (99), p.123 - 129, 1970/00

no abstracts in English

Journal Articles

A tentative plan of stoma calculation by X-ray inspection

Keikinzoku Yosetsu, (35), p.1668 - 1672, 1965/11

no abstracts in English

24 (Records 1-20 displayed on this page)