爆炸焊接复合钢板制复合管耐腐蚀性能研究  

Study on corrosion resistance of clad steel pipe made of explosive welded clad steel plate

作　　者：薛小军 XUE Xiaojun(Sichuan Jinglei Science and Technology Co.,Ltd.,Yibin 644623,China)

机构地区：[1]四川惊雷科技股份有限公司,四川宜宾644623

出　　处：《压力容器》2021年第1期68-74,共7页Pressure Vessel Technology

基　　金：四川省战略性新兴产品计划项目(2011GZX0151)。

摘　　要：以825合金为内覆层材料,L415QS(X60)管线钢为基层材料,采用爆炸复合钢板和折弯成型(JCO成型)工艺制造了一根长度12 m的复合管,对其管体和焊缝的内覆层825合金进行了晶间腐蚀、点腐蚀和应力腐蚀性能试验,晶间腐蚀和点腐蚀的试验结果和原材料相当,在模拟酸性油气田工况介质的应力腐蚀试验中评定合格。A 12 m long clad steel pipe was manufactured with 825 alloy as the inner cladding material and L415QS(X60)pipeline steel as the base material by the process of clad steel plate explosion and bending formation(JCO forming).The performance tests of intergranular corrosion,pitting corrosion and stress corrosion of 825 alloy in the inner cladding of pipe body and weld were carried out.The test results of intergranular corrosion and pitting corrosion are similar to those of raw materials,and the stress corrosion test was carried out in the medium that simulates the acid oil and gas field,and the results passed the evaluation.

关 键 词：双金属管 冶金复合管 爆炸焊接 825合金 耐腐蚀性能 

分 类 号：TH49[机械工程—机械制造及自动化] TG392[金属学及工艺—金属压力加工]