Electrochemical behaviour of martensitic stainless steel after immersion in a H2S-saturated solution

被引：45
作者：
Lei, Xiaowei [1 ,3 ]
Wang, Hongyan [2 ]
Mao, Feixiong [3 ]
Zhang, Junping [1 ]
Zhao, Mifeng [4 ]
Fu, Anqing [5 ]
Feng, Yaorong [5 ]
Macdonald, Digby D. [3 ]
机构：
[1] Northwestern Polytech Univ, Minist Educ, Key Lab Space Appl Phys & Chem, Xian 710072, Shaanxi, Peoples R China
[2] Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Macromol Sci Shaanxi Prov, Xian 710062, Shaanxi, Peoples R China
[3] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA
[4] PetroChina Tarim Oilfield Co, Oil & Gas Engn Res Inst, Korla 841000, Xinjiang, Peoples R China
[5] Tubular Goods Res Inst, State Key Lab Performance & Struct Safety Petr Tu, Xian 710077, Shaanxi, Peoples R China
来源：
CORROSION SCIENCE | 2018年 / 131卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Martensitic stainless steel; EIS; Potentiodynamic polarisation; H2S; Passivity; POTENTIAL-PH DIAGRAMS; POINT-DEFECT MODEL; TENSILE PROPERTIES; PASSIVE FILMS; CARBON-STEEL; HYDROGEN; CORROSION; CHROMIUM; SULFUR; IRON;
D O I：
10.1016/j.corsci.2017.10.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Time dependent experiments were carried out to study the corrosion behaviour of Super 13Cr martensitic stainless steel after immersion in a H2S-saturated solution. The Point Defect Model was employed to obtain key parameters. With increasing immersion time, the corrosion product layer thickened, but displayed a defective structure. The thickness of the barrier layer decreased with extending the H2S-exposure time, which notably lowered the corrosion resistance. The presence of the corrosion scale resulted in a thinner barrier layer in contrast to that without the scale. With/without the corrosion scale, no semi-conductivity and no passive region was observed for Super 13Cr after 96 h-immersion. The hydrogen ingress during H2S-exposure lowered the passivity of the bare alloy substrate.
引用
收藏
页码：164 / 173
页数：10
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