Effect of Tempering Temperature on the Corrosion Behavior of R5 Steel in Artificial Seawater

被引：9
|
作者：
Zhang, Shiyang [1 ]
Cheng, Xiaoying [1 ,2 ]
Su, Lingchao [1 ]
Jiang, Chaowei [1 ]
机构：
[1] Shanghai Univ, Inst Mat, Shanghai 200072, Peoples R China
[2] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2017年 / 12卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Mooring chain steel; Tempering temperature; Corrosion resistance; Electrochemical measurement; LOW-ALLOY STEEL; MARTENSITIC STAINLESS-STEEL; HEAT-TREATMENT; NACL SOLUTION; CARBON-STEEL; MECHANICAL-PROPERTIES; CHLORIDE SOLUTION; MILD-STEEL; MICROSTRUCTURE; CR;
D O I：
10.20964/2017.03.69
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 tempering temperature (560 degrees C, 600 degrees C and 640 degrees C, denoted as T560, T600 and T640, respectively) on the corrosion behavior of R5 steel (a kind of mooring chain steel) in artificial seawater was studied by immersion tests and electrochemical measurements combined with scanning electron microscopy (SEM). X-ray diffraction (XRD) was conducted to analyze the corrosion products. The results indicated that the corrosion resistance of the steel was increased with elevating tempering temperature. Steel T640 with higher tempering temperature exhibited excellent corrosion resistance with lower corrosion current density, a less weight loss and bigger impedance modulus than steels T560 and T600. The distinction of corrosion resistance can be attributed to the different grain size and carbide density in the microstructure.
引用
收藏
页码：2453 / 2465
页数：13
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