Clarify the effect of reversed austenite on the pitting corrosion resistance of super 13Cr martensitic stainless steel

被引：11

作者：

Zhao, Yonggang ^{[1
,2
]}

Zhu, Zhiyuan ^{[1
]}

Zhao, Xuhang ^{[1
]}

Tian, Ruichao ^{[1
]}

Lei, Yun ^{[1
]}

Yu, Pengfei ^{[1
]}

Peng, Haoping ^{[1
]}

Chen, Longjun ^{[2
]}

机构：

[1] Changzhou Univ, Sch Petr & Nat Gas Engn, Jiangsu Key Lab Oil & Gas Storage & Transportat Te, Changzhou 213164, Jiangsu, Peoples R China

[2] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Corros & Protect Ctr, Beijing 100083, Peoples R China

来源：

CORROSION SCIENCE | 2023年 / 213卷

基金：

中国国家自然科学基金;

关键词：

Super 13Cr martensitic stainless steel; Heat treatment; Reversed austenite; Cl ion; Pitting corrosion resistance; MECHANICAL-PROPERTIES; HIGH-TEMPERATURE; PASSIVE FILMS; CARBON-STEEL; BEHAVIOR; ENVIRONMENT; EVOLUTION; PRESSURE; STRESS; MICROSTRUCTURE;

D O I：

10.1016/j.corsci.2023.110992

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of reversed austenite on the pitting behavior of super 13Cr martensitic stainless steel (S13Cr MSS) was investigated. The results revealed that reversed austenite was a FCC structure with Ni enrichment after tempering process, and there were no Ni-depleted regions adjacent to it. The reversed austenite content increased with increasing tempering temperature, and the pit depth decreased, as well as the dispersion degree of the Kelvin potential distribution. The reversed austenite reduced the risk of pitting corrosion through increasing the passive film compactness, and inhibiting Cl- penetration. Accordingly, the pitting corrosion resistance was enhanced as the tempering temperature increased.

引用

页数：12

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