A comparative evaluation of microstructural and mechanical behavior of fiber laser beam and tungsten inert gas dissimilar ultra high strength steel welds

被引：0

作者：

Jaiteerth R.JOSHI ^{[1
]}

Mastanaiah POTTA ^{[1
]}

Kumar ADEPU ^{[2
]}

Ramesh Kumar KATTA ^{[1
]}

Madhusudhan Reddy GANKIDI ^{[3
]}

机构：

[1] Defence Research and Development Laboratory

[2] National Institute of Technology

[3] Defence Metallurgical Research Laboratory

来源：

Defence Technology | 2016年 / 12卷 / 06期

关键词：

TIG welding; Fiber laser; AISI; 4130; steel; Laser beam welding; Maraging steel;

D O I：

暂无

中图分类号：

TG457.11 [钢];

学科分类号：

080201 ; 080503 ;

摘要：

The influence of different welding processes on the mechanical properties and the corresponding variation in the microstructural features have been investigated for the dissimilar weldments of 18% Ni maraging steel 250 and AISI 4130 steel. The weld joints are realized through two different fusion welding processes, tungsten inert arc welding(TIG) and laser beam welding(LBW), in this study. The dissimilar steel welds were characterized through optical microstructures, microhardness survey across the weldment and evaluation of tensile properties. The fiber laser beam welds have demonstrated superior mechanical properties and reduced heat affected zone as compared to the TIG weldments.

引用

页码：464 / 472

页数：9

共 7 条

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