Stress corrosion cracking of L360NS pipeline steel in sulfur environment

查看全文 作　　者：Zhou [1]Fan;Xiaogang [1]Hu;Jianyi [2]Liu;Hongchuan [3]Li;Jinwen [1]Fu

机构地区：[1]School of Materials Science and Engineering,Southwest Petroleum University,Sichuan 610500,China;[2]State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Sichuan 610500,China;[3]SINOPEC Pipeline Transportation and Storage Company,Nanjing 210000,China

出　　处：《Petroleum》索引2017年第3卷第3期,共7页

基　　金：The authors gratefully acknowledge the support from the National Natural Science Foundation of China(No.51474181)and Open Fund(PLN1516)of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation(Southwest Petroleum University). 摘　　要：Slow strain rate test(SSRT)and tensile fracture observation are applied to study the stress corrosion cracking(SCC)of L360NS pipeline steel.5.0 wt.%sodium chloride solution containing elemental sulfur and 0.5 wt.%glacial acetic acid solution containing elemental sulfur are used.The results show that brittle fracture mainly occurs on the samples in high sulfur environment.In the sulfur suspension solution,the SCC sensitivity of L360NS pipeline steel increases along elemental sulfur content.In sulfur melting cladding condition,obvious corrosion can be observed with a large amount of corrosion pits appearing on the gauge section of the sample.The corrosion products are Fe1txS,black easily detached,and H2.In sulfur suspension and sulfur melting cladding conditions,stress oriented hydrogen induced cracking(SOHIC)is the main cracking,which is caused by the joint effect of SCC and hydrogen induced cracking(HIC). 关键词：Sour gas field Elemental sulfur SSRT SCC

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Stress corrosion cracking of L360NS pipeline steel in sulfur environment

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耦合文献(139)

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