13Cr不锈钢与Ni基合金油管表面擦划伤的腐蚀行为
Corrosion Behavior of 13Cr Stainless Steel and Nickel-base Alloy Tubes Caused by Surface Scratch Damage
摘 要
以B13Cr110不锈钢和Ni基合金G3油管为对象,分别用45#钢和黄铜在试样表面制造划伤,采用盐雾试验和电化学试验方法研究了划伤后B13Cr110油管的腐蚀行为与机理.结果表明,13Cr不锈钢和镍基合金钢管被45#钢划伤后划痕处出现明显锈蚀,原因是划伤时残留在不锈钢表面的45#钢在腐蚀环境中发生腐蚀并对不锈钢造成污染；而被黄铜划伤时虽然也发生铜残留,但黄铜具有较好的耐蚀性,不发生明显腐蚀.
镍基合金
油管
划伤
腐蚀
13Cr stainless steel
nickel-base alloy
oil tube
scratch damage
corrosion
Abstract
The corrosion behavior and mechanism of 13Cr stainless steel and nickel-base alloy tubes caused by surface scratch damage were studied by using salt spray testing and electrochemical testing.The results showed that different corrosion behaviors appeared after 13Cr stainless steel and nickel-base alloy scratched by copper or 45# steel.The corrosion pouduct of 45# steel retained on the surface was the main reason of the corrosion of 13Cr stainless steel and nickel-base alloy.
中图分类号 TG172.2
所属栏目 试验研究
基金项目
收稿日期 2009/11/18
修改稿日期
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引用该论文: ZHOU Qing-jun,QI Hui-bin,QIAN Yu-hai,WANG Wei. Corrosion Behavior of 13Cr Stainless Steel and Nickel-base Alloy Tubes Caused by Surface Scratch Damage[J]. Corrosion & Protection, 2010, 31(9): 694～695
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参考文献
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