黄本生,杨江,宾文军,尹文锋,陈想,朱瑶

• 1:西南石油大学材料科学与工程学院
• 2:大庆油田建设集团建材公司
• 3:西南石油大学工程训练中心

摘要(Abstract)：

采用焊条电弧焊(SMAW)对Q345/316L异种钢进行焊接,并对焊接接头进行不同温度的时效处理。在模拟常温高压海水环境中对不同时效处理的异种钢焊接接头开展腐蚀试验。研究时效处理对Q345/316L异种钢焊接接头耐腐蚀性能的影响。结果表明:经过450℃时效处理的异种钢焊接接头比250℃、600℃及不进行时效处理的焊接接头具有更好的耐腐蚀性能。同时经450℃的时效处理有利于焊缝奥氏体晶界处碳化物的溶解,缓解晶界的贫Cr现象,提高其耐腐蚀性能。此外,Q345/316L异种钢焊接接头在模拟海水腐蚀环境中的腐蚀产物主要是α-Fe和Fe OOH。

关键词(KeyWords)： 时效处理;Q345/316L;异种钢焊接;耐腐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 石油天然气装备教育部重点实验室开放基金(OGE201402-02);; 四川省教育厅重点项目(15ZA0057)

作者(Author): 黄本生,杨江,宾文军,尹文锋,陈想,朱瑶

DOI: 10.13289/j.issn.1009-6264.2016.06.018

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