Enhancement of corrosion resistance of high nickel austenitic ductile iron by laser surface treatment

被引：0
|
作者：
Zeng, DW
Yung, KC
Xie, CS
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Plast Forming Simulat & Mould Techn, Wuhan 430074, Hubei, Peoples R China
[2] Hong Kong Polytech Univ, Dept Mfg Engn, Kowloon, Hong Kong, Peoples R China
来源：
LASERS IN ENGINEERING | 2001年 / 11卷 / 02期
关键词：
laser surface treatment; high nickel austenitic ductile iron; corrosion resistance;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Laser surface treatment was used to enhance the corrosion resistance of a high nickel austenitic ductile iron in 0.1% hydrochloric acid solution. After laser treatment, the corrosion potential of the high nickel austenitic ductile iron increased to a more noble level and the corrosion current considerably decreased. This is believed due to a refinement of the coarse ledeburite eutectic at or near the austenitic grain boundary and elimination of the graphite spheroids in laser modified layer.
引用
收藏
页码：133 / 141
页数：9
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