牙哈凝析气田复合管腐蚀原因分析
Corrosion Science and Protection Technology（2014）
Abstract
针对牙哈气田复合钢管焊缝腐蚀穿孔情况对腐蚀部件进行分析.结果表明,复合钢管焊缝处的腐蚀穿孔是由于复合钢管内管与法兰焊缝处发生点蚀和应力腐蚀造成的.点腐蚀和应力腐蚀的发生和发展主要与焊接工艺、焊缝质量、焊缝材料、焊接应力和环境介质(Cl-含量)等因素有关.
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