摘要
研究了00Cr18Ni14Mo2Cu2奥氏体不锈钢耐海水腐蚀的焊接工艺,通过改进焊接工艺,减小了热影响区宽度,减少了热影响区与焊缝金属化学成分的差异,细化了热影响区金相组织,控制了热影响区σ相析出.结果表明,热影响区腐蚀速率减小,且焊接接头(焊缝、热影响区和母材三者同时暴露在腐蚀介质中)腐蚀速率明显减小,大大提高了该钢焊缝区域的耐海水腐蚀性能.
In this paper,seawater corrosion-resistant welding procedure of 00Cr18Ni14Mo2Cu2 austenitic stainless steel was studied.With the improvement of welding procedure,width of heat-affected zone(HAZ) was reduced,difference of chemical constitution between HAZ and fusion zone(FZ) was minished,metallurgical structure of HAZ was refined,precipitate of Fe-Cr phase(σ phase) was controlled.The corrosion rate of HAZ was decreased and corrosion rate of weld joint(FZ,HAZ and base metal was emerged in corrosion liquor at the same time) was greatly decreased.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2010年第1期105-108,共4页
Transactions of The China Welding Institution