Kazumi Nishimura
Nippon Steel
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Publication
Featured researches published by Kazumi Nishimura.
Journal of The Surface Finishing Society of Japan | 1991
Kazumi Nishimura; Ikuo Kikuchi; Hisao Odashima
The effects of pulse parameters on the surface morphology, structure and electrodeposition behavior of Zn-Ni alloys were investigated by galvanostatic pulse plating The Ni content of Zn-Ni electrodeposits changed with average puls current density (Ia). This behavior was similar to that found in DC electrodeposition At current density of 1A/dm2 or less, Ni deposition and H2 evolution occured, while above 1A/dm2, Zn was deposited and abnormal Zn-Ni co-deposition began. Above 10A/dm2, Ni content increased with increases in Ia Pulse-plated Zn-Ni crystals were smaller than those obtained by DC electrodeposition Pulse period (T) also had a major effect on crystal size Off time (toff) affected the Ni content and the structure of the Zn-Ni electrodeposits With Ni content and γ phase increasing, while η phase decreased with increases in toffPolarization curves showing variations in pulse duty (ton/T) reflected Zn-Ni electrodeposition behavior The limited current density of abnormal electrodeposition (about 08A/dm2) gradually decreased with lower pulse duty Diffusion-controlled current densities above 10A/dm2 increased in accordance with pulse duty Initial deposits during pulse plating contained a Zn-enriched Zn-Ni layer, results which correspond to the theory of abnormal co-deposition
Archive | 1999
Kazuhiko Honda; Kazumi Nishimura; Yasuhide Morimoto; Satoru Tanaka; Yoshihiro Suemune; Jun Maki; Hidetoshi Shindo; Masaaki Sugiyama; Hiroyasu Furukawa; Masao Kurosaki; Hiromasa Nomura; Hiroshi Kanai; Kohei Ueda
Archive | 2000
Masao Kurosaki; Jun Maki; Yasuhide Morimoto; Kazumi Nishimura; Osamu Goto
Archive | 1991
Kazumi Nishimura; Hisao Odashima; Tetsuya Ohara; Ryohei Mizoguchi; Shigeto Fujii
Archive | 1999
Kazuhiko Honda; Yasuhide Morimoto; Kazumi Nishimura; Hiromasa Nomura; 和彦 本田; 康秀 森本; 一実 西村; 広正 野村
Archive | 2004
Kenichi Asai; Hideki Hamaya; Shinji Kodama; Nobuo Mizuhashi; Kazumi Nishimura; 真二 児玉; 伸雄 水橋; 謙一 浅井; 秀樹 濱谷; 一実 西村
Tetsu To Hagane-journal of The Iron and Steel Institute of Japan | 2003
Kazumi Nishimura; Hidetoshi Shindo; Hiromasa Nomura; Kenji Katoh
Tetsu To Hagane-journal of The Iron and Steel Institute of Japan | 2003
Yasuhide Morimoto; Masao Kurosaki; Kazuhiko Honda; Kazumi Nishimura; Satoru Tanaka; Akira Takahashi; Hidetoshi Shindo
Archive | 2000
Satoshi Sugimaru; Satoru Tanaka; Seiki Nishida; Akira Takahashi; Atsuhiko Yoshie; Kazumi Nishimura
Archive | 2006
Kiyokazu Ishizuka; Ikuo Kikuchi; Kazumi Nishimura; 清和 石塚; 郁夫 菊池; 一実 西村