Pitting corrosion of Cu-Zn-Al shape memory alloy in simulated uterine fluid

被引：0

作者：

Chen, BY

Liang, CH ^{[1
]}

Fu, DJ

机构：

[1] Dalian Univ Technol, Sch Chem Engn, Dalian 116012, Peoples R China

[2] State Key Lab Corros & Protect, New Delhi 110016, India

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2005年 / 21卷 / 02期

关键词：

Cu-Zn-Al shape memory alloy; simulated uterine fluid; pitting corrosion;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrochemical test technology and surface analysis method were employed to investigate the pitting corrosion of Cu-Zn-Al shape memory alloy in simulated uterine fluid. The results showed that the breakage of the breaking-renovating equilibrium of surface layers resulted in the pitting corrosion of Cu-Zn-Al shape memory alloy in simulated uterine fluid. The development of pitting corrosion was controlled by dissolution of surface layers. The critical pitting corrosion potential was 1.70 V-SCE. The kinetics equation for the development of pitting corrosion for Cu-Zn-Al shape memory alloy in simulated uterine fluid was i(0) = 465.68 t(-0.5) + 1.5. Pitting appearances of pits could be two types: tortoise-shell, and anomaly abscess. Cl- ion facilitated the pitting corrosion of Cu-Zn-Al shape memory alloy by competing adsorption and concentrating on alloy surface at high positive potential.

引用

页码：226 / 230

页数：5

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