摘要
采用化学分析、金相分析及腐蚀产物成分测定等方法对泄漏管道进行检测,对其失效原因进行分析。结果表明,应力腐蚀是管道失效的根本原因,并提出了解决对策,制定了双相钢焊接工艺,保证了焊接接头的力学性能和耐腐蚀性,成功地解决了管道失效问题。
Inspection was carried out on the leakage pipe with chemical analysis, metallurgical examination and corrosion product composition measurement methods, and the failure causes were analyzed. Result showed that stress corrosion was the essential cause. Duplex stainless steel welding process was developed which guaranteed the mechanical property and corrosion resistance of welding joints and therefore successfully settle the problem of pipeline failure.
出处
《石油化工技术与经济》
2010年第3期15-19,共5页
Technology & Economics in Petrochemicals
关键词
管道
失效分析
应力腐蚀
双相不锈钢
pipeline, failure analysis, stress corrosion, duplex stainless steel