Corrosion characteristics of nanostructured layer on 316L stainless steel fabricated by cavitation-annealing

被引：69
|
作者：
Kwok, C. T.
Cheng, F. T. [1 ]
Man, H. C.
Ding, W. H.
机构：
[1] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China
[2] Univ Macau, Dept Electromech Engn, Macau, Peoples R China
[3] Hong Kong Polytech Univ, Dept Ind & Syst Engn, Kowloon, Hong Kong, Peoples R China
来源：
MATERIALS LETTERS | 2006年 / 60卷 / 19期
关键词：
cavitation-annealing; nano-structure; pitting corrosion; stainless steel;
D O I：
10.1016/j.matlet.2006.01.053
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A nanocrystalline surface layer on 316L stainless steel was fabricated by cavitation followed by low-temperature annealing. The corrosion characteristics of the nanostructured surface in 0.9wt.% NaCl solution at 25 degrees C were investigated by electrochemical measurements. The nanocrystalline surface leads to a lower susceptibility to pitting corrosion and higher repassivation power as indicated by noble shift in the pitting and protection potentials, and lower corrosion current density. In addition, the pitting resistance of 3 16L increases with the decrease in grain size. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：2419 / 2422
页数：4
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