Effects of rare earth metals addition on the resistance to pitting corrosion of super duplex stainless steel - Part 1

被引：125
作者：
Kim, Soon-Tae [1 ]
Jeon, Soon-Hyeok [1 ]
Lee, In-Sung [1 ]
Park, Yong-Soo [1 ]
机构：
[1] Yonsei Univ, Dept Mat Sci & Engn, Seoul 120749, South Korea
来源：
CORROSION SCIENCE | 2010年 / 52卷 / 06期
关键词：
Rare earth elements; Stainless; Potentiostatic; SEM; Inclusion; Pitting corrosion; SULFIDE INCLUSIONS; MNS INCLUSIONS; NONMETALLIC INCLUSIONS; PIT INITIATION; BEHAVIOR; NUCLEATION; GROWTH;
D O I：
10.1016/j.corsci.2010.02.043
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To elucidate the effects of rare earth metals addition on the resistance to pitting corrosion of super duplex stainless steel, a metallographic examination, potentiodynamic and potentiostatic polarization tests, a SEM-EDS and a SAM analysis of inclusion, austenite phase and ferrite phase were conducted. The addition of rare earth metals to the base alloy led to the formation of (Mn, Cr, Si, Al, Ce) oxides and (Mn, Cr, Si, Ce) oxides, which improved the resistance to pitting corrosion and caused a decrease in the preferential interface areas for the initiation of the pitting corrosion. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1897 / 1904
页数：8
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