Effects of laser treatments on cavitation erosion and corrosion of AISI 440C martensitic stainless steel

被引：37

作者：

Lo, KH

Cheng, FT ^{[1
]}

Kwok, CT

Man, HC

机构：

[1] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China

[2] Univ Macau, Fac Sci & Technol, Dept Electromech Engn, Taipa, Macao, Peoples R China

[3] Hong Kong Polytech Univ, Dept Ind & Syst Engn, Kowloon, Hong Kong, Peoples R China

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 1-2期

关键词：

laser surface melting; laser transformation hardening; cavitation erosion; corrosion;

D O I：

10.1016/S0167-577X(03)00421-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Laser surface treatments with high and low fluence were employed to induce melting and transformation hardening on 440C. While melting could bring about better improvement in corrosion resistance, transformation hardening was more effective in enhancing the cavitation erosion resistance. Compared with conventional heat treatment, laser treatments resulted in higher corrosion resistance with a wide passive range in NaCl solution, and also in higher cavitation erosion resistance in both deionized water and NaCl solution. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：88 / 93

页数：6

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