Influence of Hydrostatic Pressure on the Pitting Corrosion Behavior of API X80 Steel

被引：0

作者：

Xu, Chengcheng ^{[1
]}

Yu, Meng ^{[1
]}

Zhu, Yuxiang ^{[1
]}

Jin, Ying ^{[1
]}

Wen, Lei ^{[1
]}

Sun, Dongbai ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China

[2] Sun Yat Sen Univ, Sch Mat, Guangzhou 510275, Peoples R China

来源：

CORROSION | 2021年 / 77卷 / 12期

关键词：

hydrostatic pressure; inclusions; pitting corrosion; X80; steel; 316L STAINLESS-STEEL; CARBON-STEEL; PIPELINE STEEL; ALUMINUM; POLARIZATION; TEMPERATURE; BICARBONATE; INITIATION; STRESS; NICKEL;

D O I：

10.5006/3810

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of hydrostatic pressure on the metastable and stable pitting corrosion of API X80 steel was investigated in a simulated deep-sea environment. Cumulative probability distribution analysis of metastable pitting events revealed that hydrostatic pressure promoted the occurrence of metastable pitting corrosion and the transformation of metastable pitting corrosion to stable pitting corrosion. According to the results of scanning Kelvin probe force microscopy tests, pitting corrosion of the test steel originated at the interface between inclusions and the substrate. Combined with finite element analysis, the mechanism by which hydrostatic pressure promoted the occurrence and propagation of stable pitting corrosion of test steel in the simulated deep-sea environment was explained.

引用

页码：1299 / 1310

页数：12

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