碳酸盐硫化氢复杂环境中16MnR钢应力腐蚀敏感性研究

腐蚀学报（英文）, 2011, 23(5): 427-430.

碳酸盐硫化氢复杂环境中16MnR钢应力腐蚀敏感性研究

1.1. 荆楚理工学院机械工程学院, 荆门 4480002. 浙江工业大学化工机械研究所, 杭州 3100143. 国家压力容器与管道安全工程技术研究中心, 合肥 230031>

1.1. School of Mechanical Engineering, Jingchu University of Technology, Jingmen 4480002. Institute of Chemical Machinery, Zhejiang University of Technology, Hangzhou 3100143. China National Technology Research Center on Pressure Vessel and Pipeline Safety Engineering Hefei 230031>

基金项目: 十一五&rdquo 科技支撑计划项目(2006BAK02B02-02) 国家科技部&ldquo

关键词： 16MnR , stress corrosion , slow strain rate test , hydrogen sulfide , carbonate

Stress Corrosion Cracking Susceptibility of 16MnR Steel in Solution Containing Carbonate and Hydrogen Sulfide

DONG Yuexiang , ZHANG Wei , YANG Tiecheng

Keywords： 16MnR steel , 应力腐蚀 , 慢应变速率试验 , 硫化氢 , 碳酸盐

采用慢应变速率拉伸试验研究了16MnR钢在碳酸盐和硫化氢复杂环境中的应力腐蚀开裂敏感性. 结果表明, 在含碳酸盐和硫化氢的复杂介质环境中, 16MnR钢的应力腐蚀敏感性指数低于25%; 温度由常温升高至57.5℃时, 16MnR钢母材与热影响区的应力腐蚀敏感性略有升高, 碳酸盐和硫化氢浓度对16MnR钢在此复杂环境中的应力腐蚀敏感性存在相互影响.

By means of slow strain rate test (SSRT), the stress corrosion cracking (SCC) susceptibility of 16MnR in complex environment containing carbonate and hydrogen sulfide were investigated. In this environment, the stress corrosion cracking susceptibility indexes of 16MnR were lower than 25%. With the temperature increasing from 25℃ to 57.5℃, the stress corrosion cracking susceptibility indexes increased slightly, and the concentration of hydrogen sulfide and the carbonate affected the susceptibility reciprocally.

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