许万剑 杨春丽 赵宏柱 陶新秀 丁非 陈安源 某公司不锈钢焊管使用过程中出现大面积开裂泄露。采用宏观检验、化学成分分析、金相检验、SEM、EDS能谱分析等方法,对该管道的开裂泄露进行失效分析。结果表明,该焊管的开裂主要为氯离子应力腐蚀开裂。焊管成型后未热处理造成的残余应力、管外面橡塑保温材料释放出的氯离子共同造成了该不锈钢焊管的应力腐蚀开裂。304不锈钢管https://www.bxgg306.com浙江不锈钢有限公司,不锈钢焊管管的厂家,年产不锈钢无缝管1。5万吨:主要品种有不锈钢无缝管,不锈钢焊管,价格浙江温州地区最有竞争优势。材质有:304,304L,321,TP316L,316L,310S,2520,不锈钢管规格齐全,产品具有良好的耐腐蚀性、不生锈、耐磨等特点,本厂是温州比较大的不锈钢管经销厂家之一! 不锈钢焊接钢管 残余应力 橡塑保温材料 应力腐蚀 welded stainless steel pipe residual stress rubber insulation material stress corrosion Large area of cracks and leakage were found on some welded stainless steel pipes. The pipes were analyzed by means of macroscopic examination, chemical composition analysis, metallographic examination, SEM and EDS. The results showed that the crack was stress corrosion cracking caused by chloride ion. The stress corrosion was due to the combined effects of residual stress which was caused by no heat-treatmnet after cold-working and chloride ion which came from rubber insulation material. TG174 应用技术 2013/7/24 点击查看 许万剑(xuwanjian2008@126.com) 许万剑(1987-),工程师,硕士,从事不锈钢制品质量检验, XU Wan-jian,YANG Chun-li,ZHAO Hong-zhu,TAO Xin-xiu,DING Fei,CHEN An-yuan. Analysis on Stress Corrosion Cracking of Welded Stainless Steel Pipe[J">. Corrosion & Protection, 2014, 35(5): 511 邹章雄,金少申,刘昌禄,刘顺勤,马强,葛玉雄, "奥氏体不锈钢压力管道的应力腐蚀开裂及预防",理化检验-物理分册 51, 721-724(2015) |
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