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

被引：12

作者：

Joshi, Jaiteerth R. ^{[1
]}

Potta, Mastanaiah ^{[1
]}

Adepu, Kumar ^{[2
]}

Katta, Ramesh Kumar ^{[1
]}

Gankidi, Madhusudhan Reddy ^{[3
]}

机构：

[1] Def Res & Dev Lab, Hyderabad 500058, Telangana, India

[2] Natl Inst Technol, Warangal 502205, Telangana, India

[3] Def Met Res Lab, Hyderabad 500058, Telangana, India

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：

10.1016/j.dt.2016.08.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

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. (C) 2016 The Authors. Production and hosting by Elsevier B. V. on behalf of China Ordnance Society.

引用

页码：464 / 472

页数：9

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