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Yamaguchi, Masatake; Ebihara, Kenichi; Tsuru, Tomohito; Itakura, Mitsuhiro
Materials Transactions, 64(11), p.2553 - 2559, 2023/11
Times Cited Count：1 Percentile：48.82(Materials Science, Multidisciplinary)We attempted to calculate the hydrogen trapping energies on the incoherent interfaces of MgZn
precipitates and MgSi crystallites in aluminum alloys from first-principles calculations. Since the unit cell containing the incoherent interface does not satisfy the periodic boundary condition, resulting in a discontinuity of crystal blocks, the hydrogen trapping energy was calculated in a region far from the discontinuity (vacuum) region. We found considerable trapping energies for hydrogen atoms at the incoherent interfaces consisting of assumed atomistic arrangement. We also conducted preliminary calculations of the reduction in the cohesive energy by hydrogen trapping on the incoherent interfaces of MgSi in the aluminum matrix.
Miyagi, Masanori*; Hongze, W.*; Yoshida, Ryohei*; Kawahito, Yosuke*; Kawakami, Hiroshi*; Shobu, Takahisa
Scientific Reports (Internet), 8(1), p.12944_1 - 12944_10, 2018/08
Times Cited Count：42 Percentile：81.64(Multidisciplinary Sciences)The behavior inside the metal during laser welding is very important because it greatly affects the material strength, defect generation, and so on. In this study, weld pool dynamics in laser welding of various series of aluminum alloys were investigated by the 
synchrotron radiation X-ray phase contrast imaging system. The experimental results showed that metal irradiated by laser was evaporated immediately, which generated the keyhole. Then metal surrounding the keyhole was melted gradually with the heat from keyhole. The growth rate of keyhole depth had a positive linear correlation with the total content of low boiling temperature elements (TCE), so did the keyhole depth and diameter at the stable stage. Then, by repeating the experiment, we succeeded in quantifying the effect of alloying elements on the dynamics of the weld pool in laser welding of aluminum alloys.
Maeda, Akio; Oba, Toshihiro; Kikuchi, Hiroyuki; Shibata, Katsuyuki
JAERI-Tech 2001-003, 48 Pages, 2001/02
JAERI-Tech-2001-003.pdf:5.95MB
no abstracts in English
Tsuji, Hirokazu; Miya, Kenzo*
Nucl. Eng. Des., 155, p.527 - 546, 1995/00
Times Cited Count：1 Percentile：16.76(Nuclear Science & Technology)no abstracts in English
Tsuji, Hirokazu; Miya, Kenzo*
Nucl. Eng. Des., 155, p.547 - 557, 1995/00
Times Cited Count：2 Percentile：28.65(Nuclear Science & Technology)no abstracts in English
Tsuji, Hirokazu; *; Tsukada, Takashi; Nakajima, Hajime
Journal of Nuclear Science and Technology, 30(12), p.1234 - 1242, 1993/12
Times Cited Count：3 Percentile：38.1(Nuclear Science & Technology)no abstracts in English
Tsuji, Hirokazu; *; Tsukada, Takashi; Nakajima, Hajime
JAERI-M 93-204, 24 Pages, 1993/10
no abstracts in English
*; Furuno, Shigemi; Hojo, Kiichi; Ono, K.*; *; *; Kino, Takao*
Journal of Nuclear Materials, 191-194, p.1214 - 1218, 1992/00
Times Cited Count：5 Percentile：41.92(Materials Science, Multidisciplinary)no abstracts in English
Tsuji, Hirokazu; Miya, Kenzo*
Preprints of the Post SMiRT Seminar No. ll on Construction Codes and Engineering, p.3.4-1 - 3.4-19, 1991/08
no abstracts in English
Tsuji, Hirokazu; Miya, Kenzo*
Preprints of the Post SMiRT Seminar No. ll on Construction Codes and Engineering, p.3.4-20 - 3.4-39, 1991/08
no abstracts in English
*; Furuno, Shigemi; Hojo, Kiichi; *; Kino, Takao*
Journal of Nuclear Materials, 179-181, p.970 - 973, 1991/00
Times Cited Count：3 Percentile：40.77(Materials Science, Multidisciplinary)no abstracts in English
Tsuji, Hirokazu; ; Nakajima, Hajime
JAERI-M 90-191, 126 Pages, 1990/11
no abstracts in English
*; *; *; Ooka, Norikazu
Keikinzoku Yosetsu, 28(11), p.489 - 497, 1990/00
no abstracts in English
*; *; *; Ooka, Norikazu
Keikinzoku Yosetsu, 28(12), p.525 - 533, 1990/00
no abstracts in English
Murakami, Yoshio
Shinku, 33(5), p.461 - 466, 1990/00
no abstracts in English
LiAl alloy targets; ; Motoishi, Shoji; ; ; ; Nagame, Yuichiro; ; *
Journal of Nuclear Science and Technology, 22(2), p.147 - 152, 1985/00
Times Cited Count：6 Percentile：70.43(Nuclear Science & Technology)no abstracts in English
*; ; *
Aruminiumu Gokin Yosetsubu No Kekkan Shashinshu, 38 Pages, 1972/00
no abstracts in English
;
Keikinzoku Yosetsu, (99), p.123 - 129, 1970/00
no abstracts in English
; ; Ando, Yoshio*
Yosetsu Gakkai-Shi, 31(12), p.980 - 985, 1962/00
no abstracts in English
Ando, Yoshio*; ; *
Yosetsu Gakkai-Shi, 29(4), p.326 - 332, 1960/00
no abstracts in English
