电焊机2023，Vol.53Issue(12)：22-27,6.DOI:10.7512/j.issn.1001-2303.2023.12.03
纯镍与N10003哈氏合金TIG焊接工艺及质量控制研究
Study on TIG Welding Process and Quality Control of Pure Nickel and N10003 Hastelloy Alloy
毛琪钦 1王龙1
作者信息
- 1. 上海宝冶工程技术有限公司,上海 200942
- 折叠
摘要
Abstract
Based on the thori-based molten salt reactor nuclear energy vessel manufacturing project,the welding process of pure nickel N02201 and N10003 Hasloy alloys was studied by using TIG.Nondestructive testing,mechanical property test-ing and macroscopic metallographic testing were used to verify the mechanical properties and microstructure of welded joints.At the same time,the quality control measures of pure nickel N10003 and Hastelloy N10003 welding are discussed.An ideal welding process suitable for the welding of pure nickel and Hastelloy alloy was developed.The result shows that:During welding,welding heat input and interlayer temperature should be strictly controlled.Excessive increase of welding current cannot effectively improve the fluidity of liquid metal,on the contrary,it will increase the probability of hot cracks in the weld.Attenuating current should be used to avoid arc pit crack.The microstructure of welded joint is composed of aus-tenite and a small amount of ferrite,The weld center grain grows dendritically from the fusion zone to the weld center,A small number of carbides precipitated in the fusion zone on N02201 side,and the boundary of the fusion line on N10003 side was obvious.no defects appeared in joints;All the properties meet the relevant standards.关键词
纯镍/哈氏合金/焊接工艺/质量控制Key words
pure nickel/Hastelloy alloy/welding process/quality control分类
矿业与冶金引用本文复制引用
毛琪钦,王龙..纯镍与N10003哈氏合金TIG焊接工艺及质量控制研究[J].电焊机,2023,53(12):22-27,6.
