电焊机2017，Vol.47Issue(10)：46-49,4.DOI:10.7512/j.issn.1001-2303.2017.10.09
保护气体对06Cr19Ni10钢焊接接头组织与性能的影响
Effect of different protective atmosphere on microstructure and properties of 06Cr19Ni10 steel welded joints
宗桓旭 1许鸿吉 1耿涛 1祁艺洋1
作者信息
- 1. 大连交通大学材料科学与工程学院,辽宁大连116028
- 折叠
摘要
Abstract
Microstructures and properties of 06Cr19Ni10 stainless steel welded joints that welded by MAG φ(Ar)95％+φ(CO2)5％ and φ(Ar)97％+φ(O2)3％ welding method are studied by tensile tests,bending tests,hardness tests and metallographic analysis.The results show that two types of joints have good tensile and bending properties,and have similar microhardness distribution trend;The weld center has the highest hardness and the heat affected zone has the minimum hardness;The microstructure of base metal is austenitic,and a few of banded δ ferrite distribute along the rolling direction;In the weld center,the black dendritic δ ferrite uniformly distribute on the white austenite matrix and the grains are fine and uniform;There are columnar austenite and lath shaped ferrite near the fusion line;The microstructure of the heat affected zone is austenitic matrix and a small amount of δ ferrite.关键词
06Cr19Ni10不锈钢/MAG焊/组织与性能Key words
06Cr19Ni10 stainless steel/MAG welding/microstructure and property分类
矿业与冶金引用本文复制引用
宗桓旭,许鸿吉,耿涛,祁艺洋..保护气体对06Cr19Ni10钢焊接接头组织与性能的影响[J].电焊机,2017,47(10):46-49,4.
