镍基合金波纹管膨胀节泄漏原因分析及解决措施
Cause Analysis on Leakage of the Nickel base alloy bellows expansion joint
高正芳 1金彦枫 1黄超鹏 2刘泉 1徐成 1马娟娟1
作者信息
- 1. 上海蓝滨石化设备有限责任公司,上海 201518
- 2. 机械工业上海蓝亚石化设备检测所有限公司,上海 201600
- 折叠
摘要
通过宏观检验、化学成分分析、金相检验及能谱分析等方法对镍基合金波纹管膨胀节泄漏原因进行了分析.结果表明:磷酸或磷酸盐腐蚀和材料的晶间腐蚀倾向是导致膨胀节失效的主要原因.最后提出了相应的解决措施.
Abstract
The causes of leakage of nickel base alloy bellows expansion joint were analyzed by means of macroscopic examination,chemical composition analysis,metallographic examination and energy spectrum analysis.Phosphoric acid or phosphate corrosion and intergranular corrosion tendency are the main reasons for the failure of expansion joints.Finally,the corresponding preventive measures are put forward.
关键词
镍基合金波纹管膨胀节/泄漏/磷酸或磷酸盐/晶间腐蚀Key words
nickel base alloy bellows expansion joint/leakage/phosphoric acid or phosphate/intergranular corrosion引用本文复制引用
出版年
2024
NETL
NSTL
万方数据