杨世洲,李春福,李辉,文平.2205双相不锈钢在酸性H2S环境下的应力腐蚀行为及开裂机理研究[J].稀有金属材料与工程,2018,47(3):904~909.[Yang Shizhou,Li Chunfu,Li Hui,Wen Ping.Study on Stress Corrosion Behavior and Cracking Mechanism of 2205 Duplex Stainless Steel in Acidic H2S Environment[J].Rare Metal Materials and Engineering,2018,47(3):904~909.]
2205双相不锈钢在酸性H2S环境下的应力腐蚀行为及开裂机理研究
投稿时间:2016-01-13  修订日期:2016-03-11
中文关键词:  2205双相不锈钢  C型环试验  H2S应力腐蚀  氢致开裂
基金项目:国家863高新技术研究发展计划项目(2006AA06A105) ;西南石油大学油气藏地质及开发工程国家重点实验室基金(PLN0609)
中文摘要:
      :采用C型环实验研究了2205双相不锈钢在饱和H2S环境下的应力腐蚀行为及开裂机理。研究结果表明,2205双相不锈钢NACE标准A溶液中有良好的抗应力腐蚀能力。通过OMSEMEDS及电化学手段分析得出2205双相不锈钢的应力腐蚀开裂经历了表面点蚀,蚀坑形成,H2S解离,H原子吸附并从蚀坑位置扩散进入金属基体,金属基体聚集,通过氢致开裂机制导致裂纹萌生,并逐渐扩展
Study on Stress Corrosion Behavior and Cracking Mechanism of 2205 Duplex Stainless Steel in Acidic H2S Environment
英文关键词:2205 duplex stainless steel  C-rings stress corrosion cracking test  H2S stress corrosion cracking  hydrogen induced cracking
英文摘要:
      Stess corrosion behavior and cracking mechanism of 2205 duplex stainless steel (DSS) in saturated H2S environment were studied by using C-rings Stress Corrosion Cracking Test. The results showed that 2205 DSS has good resistance to stress corrosion in Test Solution A of NACE Standard. Through OM, SEM, EDS and electrochemical analysis, stress corrosion cracking in 2205 DSS undergoes the following procedures: pitting corrosion on surface, formation of corrosion hole, dissociation of H2S, absorption of H atoms and their diffusion from corrosion hole to inner metal, then gathering at some place in matix, finally initiation of cracks by hydrogen induced cracking mechanism and their gradual propagation.
作者单位E-mail
杨世洲 西南石油大学 yangshizhou@163.com 
李春福 西南石油大学 406954188@qq.com 
李辉 四川建筑职业技术学院  
文平 西南石油大学  
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