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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.43  No.4 (2002)  >  pp.638-640

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Improvement of Corrosion Resistance and Structural Change in 304 Stainless Steel by means of Ion-Mixing

Yasuyuki Masumoto1), Mitsuhiro Takeda2), Takanori Suda1), Seiichi Watanabe1), Soumei Ohnuki1), Toshiaki Ohtsuka1) and Kazuhiro Ikezawa3)
1) Department of Material Science, Graduate School of Engineering, Hokkaido University
2) Department of Materials Science and Engineering, Miyagi National College of Technology
3) Domestic Research Fellow, JSTCC, WERC

High-energy ion-beam mixing technique was applied for the surface modification of austenitic stainless steel, followed by electrochemical characterization and microstructural observation. The co-mixing of silicon and chromium resisted the passivation current to 1/1000 relative to the un-modified condition. The corrosion resistance improved remarkably. Microstructural observation revealed that the enhanced diffusion and induced amorphous structure introduced by the co-mixing of silicon and chromium, which played a very important role in the improvement of electrochemical behavior at surface.

ion-beam mixing, surface modification, austenitic stainless steel, corrosion resistance

Received: November 14, 2001
Accepted: March 12, 2002 , Published online: September 06, 2005
Copyright (c) 2005 The Japan Institute of Metals



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