Effect of temperature change rate on the critical pitting temperature for duplex stainless steel

被引：10

作者：

Zhang, Lihua ^{[1
]}

Jiang, Yiming ^{[1
]}

Deng, Bo ^{[1
]}

Sun, Daoming ^{[1
]}

Gao, Juan ^{[1
]}

Li, Jin ^{[1
]}

机构：

[1] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2009年 / 39卷 / 10期

基金：

上海市科技启明星计划; 中国国家自然科学基金; 中国博士后科学基金;

关键词：

Duplex stainless steel; Pitting corrosion; Critical pitting temperature; Temperature change rate; The point defect model; BORATE BUFFER SOLUTION; ANODIC PASSIVE FILMS; POINT-DEFECT MODEL; CHLORIDE; BREAKDOWN; DEPENDENCE; ION;

D O I：

10.1007/s10800-009-9863-9

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effect of temperature change rate on the critical pitting temperature (CPT) for two kinds of duplex stainless steels (DSS, namely UNS S31803 and UNS S32750) in 1 mol L-1 NaCl solution was investigated using the potentiostatic current transient technique. The values of CPT for two DSSs all increased as the temperature change rate (upsilon) increased. A linear relationship between the CPT and the square root of temperature change rate (upsilon(1/2)) was found. Furthermore, deriving from the point defect model (PDM), this particular relationship received theoretical support at low temperature change rates.

引用

页码：1703 / 1708

页数：6

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