Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Keiyu Nakagawa"'
Publikováno v:
Journal of the Japan Institute of Metals and Materials. 87:103-107
Publikováno v:
Journal of Japan Institute of Light Metals. 69:149-156
Publikováno v:
Materials Science Forum. 941:1821-1826
In this study, the effect of the surface structure and hydrogen on the fatigue strength of electroless Ni-P plated Al-2%Cu alloy was investigated. As the results, the following points were clarified. Large precipitates were recognized near the specim
Autor:
Keitaro Horikawa, Koji Murakami, Minoru Fukuhara, Norihito Nagata, Keiyu Nakagawa, Makoto Hino, Teruto Kanadani
Publikováno v:
Materials Science Forum. 879:897-902
In this study, the effect of electroless Ni-P plating on the mechanical properties of Al-4%Ge alloy was investigated. As the results, the following points were clarified. (i) Tensile strength of the specimen subjected to the Ni-P plating after aging
Autor:
Makoto Hino, Norihito Nagata, Teruto Kanadani, Minoru Fukuhara, Keiyu Nakagawa, Keitaro Horikawa, Kouji Murakami
Publikováno v:
Journal of the Japan Institute of Metals. 79:151-155
Autor:
Kouji Murakami, Keiyu Nakagawa, Keitaro Horikawa, Teruto Kanadani, Minoru Fukuhara, Makoto Hino, Norihito Nagata
Publikováno v:
Journal of the Japan Institute of Metals. 79:146-150
1Department of Mechanical Systems Engineering, Faculty of Engineering, Okayama University of Science, Okayama 7000005 2Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Toyonaka 56085
Publikováno v:
Materials Science Forum. :1175-1180
Aging phenomena of Al-Zn alloys have been much investigated and many studies have been made on the change of mechanical properties on aging. Appearance of saw-tooth yielding (serration) in the stress-strain curve of tensile deformation has been repor
Autor:
Keiyu Nakagawa, Teruto Kanadani
Publikováno v:
Materials Science Forum. :1211-1216
Age-hardening of Al-Zn alloy after quenching develops inhomogeneously due to the effect of surface as a vacancy sink and grain boundary as an easy path. In this study, reversion of the age-hardened Al-Zn alloys, in which ellipsoidal GP zones were for
Publikováno v:
Materials Science Forum. :180-185
In this study, the effect of heat treatment conditions and small addition of Cu on occurrence of serration in Al-Si alloys was investigated. Specimens were aged for various times up to 87ks at 273K or 473K after quenching from 853K, and tensile-teste
Autor:
Toshihiko Nakano, Daisuke Terada, Khairul Nizam, Nobuhiro Tsuji, Keiyu Nakagawa, Teruto Kanadani
Publikováno v:
MATERIALS TRANSACTIONS. 55:249-254
The aging behavior of ultrafine-grained (UFGed) Al0.5%Si0.5%Ge alloy fabricated using six-cycle accumulative roll-bonding (ARB) processing has been investigated using Vickers hardness measurement and TEM observation. The hardness of UFGed alloy b