摘要
用双U形恒应变实验方法,研究了20#碳钢、16MnR、碳钢渗铝基材及焊接材料浸泡在不同硫化物浓度的油品介质中的开裂敏感性。实验结果及现场挂片数据表明:焊接材料更易于发生湿H2S应力腐蚀开裂;渗铝钢有更低的H2S开裂敏感性,适宜在常减压装置低温部位换热器上应用。
The susceptibility to sulfide stress corrosion cracking（SSCC） of steels of 20#, 16MnR and Aluminized Mild Steel and their weld seams were studied in various oil by the double U-bend constant strain method. The results showed that the susceptibility to H2S corrosion cracking of the weld seam is higher than that of the relevant matrix; the SCC susceptibility of Aluminized Mild Steel is lower than that of steels of 20# and 16MnR; The application of aluminized mild steel to heat exchanger was suggested.
出处
《全面腐蚀控制》
2005年第5期23-26,共4页
Total Corrosion Control
关键词
碳钢渗铝
换热器
应力腐蚀
aluminized mild steel
heat exchanger
SSCC
