Combined effect of hydrogen embrittlement and corrosion on the cracking behaviour of C110 low alloy steel in O2-contaminated H2S environment4

被引：22
作者：
Long, Yan [1 ,3 ]
Song, Wenwen [2 ]
Fu, Anqing [1 ]
Xie, Junfeng [2 ]
Feng, Yaorong [1 ]
Bai, Zhenquan [1 ]
Yin, Chengxian [1 ]
Ma, Qingwei [1 ]
Ji, Nan [1 ]
Kuang, Xianren [1 ]
机构：
[1] CNPC Tubular Goods Res Inst, State Key Lab Performance & Struct Safety Petr Tu, Xian 710077, Peoples R China
[2] PetroChina Co Ltd, Tarim Oilfield Co, Korla 841000, Peoples R China
[3] China Univ Petr East China, Qingdao 266580, Peoples R China
来源：
CORROSION SCIENCE | 2022年 / 194卷
关键词：
Low alloy steel; STEM; Hydrogen embrittlement; Oxidation; Sulphide cracking; SULFIDE STRESS CRACKING; ELECTROCHEMICAL CORROSION; CRYSTAL-STRUCTURE; LATH MARTENSITE; CARBON-STEEL; X65; STEEL; WATER; MACKINAWITE; RESISTANCE; O-2;
D O I：
10.1016/j.corsci.2021.109926
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The cracking behavior of sulfide stress cracking resistant C110 steel in O-2-contaminated H2S environment was investigated by cracking and corrosion simulation tests. With the increase of O-2 partial pressure, the cracking susceptibility and corrosion rate of C110 steel significantly increased. The O-2 ingress affects the whole cracking behaviour involving a multi-stage process: the oxidation reactions of H2S, the corrosion reactions on the metal surface and the degradation and cracking of martensitic multiscale boundaries. The cracking mechanism of C110 steel in H2S and O-2-containing environment is attributed to the combined effect of hydrogen embrittlement and anodic dissolution.
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页数：16
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