压力容器2016，Vol.33Issue(11)：50-58,9.DOI:10.3969/j.issn.1001-4837.2016.11.009
哈氏合金C22酰胺加热器腐蚀损伤及对策
Corrosion Damage and Countermeasures for Hastelloy C22 Amide Heater
郑启文 1胡庭友 2叶遥 2刘大昕2
作者信息
- 1. 哈尔滨焊接研究所,黑龙江 哈尔滨 150028
- 2. 中石油吉林石化公司,吉林 吉林 132022
- 折叠
摘要
Abstract
In this paper,the form,location and cause of the serious corrosion damage occurred in the short time of the Hastelloy alloy C22 coil type amide heater of the methyl ester device were tested and ana-lyzed. It is pointed out that intergranular precipitation of rich Cr,Mo phase ( carbides and intermetallic compounds) caused by welding heat is the main factor causing serious corrosion. Deformation and erosion accelerated corrosion. Put forward a workable repair technology. The article proves the necessity of solution treatment after welding and relevant technology. This work has important reference value for the produc-tion and operation of the amide heater and high nickel alloy structure.关键词
C22-哈氏合金盘管式酰胺加热器/腐蚀损伤/富Cr-Mo相析出/修复技术/焊后固溶处理Key words
hastelloy C22-alloy coil type amide heater/corrosion damage/Cr-Mo-rich phase precipitates/repair technology/solution treatment after welding分类
机械制造引用本文复制引用
郑启文,胡庭友,叶遥,刘大昕..哈氏合金C22酰胺加热器腐蚀损伤及对策[J].压力容器,2016,33(11):50-58,9.
