【作者】 李世瀚； 陈长风； 于浩波； 陈颖斌； 李耀军； 庞有勇；

【Author】 Li Shihan;Chen Yingbin;Li Yaojun;Pang Youyong;Chen Changfeng;Yu Haobo;Department of Materials Science and Engineering,Beijing Key Laboratory of Failure,Corrosion and Protection of Oil/gas Facilities,China University of Petroleum(Beijing);

【机构】 中国石油大学(北京)材料科学与工程系中国石油大学(北京)油气设备腐蚀与防护实验室；

【摘要】 <正>奥氏体高锰孪晶诱导塑性变形(TWIP)钢具有良好的可塑性,可淬透性和较高的强度,因此在汽车和能源工业领域得到广泛的应用。而氢在面心立方的奥氏体相中的溶解度高且扩散系数较低[1],这使得TWIP钢在酸性高含硫油气田环境中具有令人期待和兴奋的应用前景[2-3]。因此,研究湿硫化氢条件下TWIP钢的腐蚀行为对指导其在酸性含硫油气田中的应用至关重要。更多还原

【Abstract】 The objective of this study is to evaluate the corrosion behavior of two TWIP steels with different manganese content under wet H₂S.The tests were conducted using 16（wt%）Mn and 25（wt%）Mn steels in NACE A solution with saturated H₂S under room temperature.Corrosion rate and behavior were investigated using potentiodynamic tests and electrochemical impedance spectroscopy（EIS） technique.The results showed that the reaction of both metal dissolution and hydrogen evolution speeded up after Mn content increased.And the corrosion resistance of 16 Mn TWIP steel is much better than 25 Mn TWIP steel under wet H₂S.The corrosion rate of 25 Mn steel is more than twice as 16 Mn steel.更多还原