Evaluation of strength in stainless steel weld joints using ball indentation technique

被引:2
作者
Pavan, A. R. [1 ,2 ]
Kumar, J. Ganesh [1 ]
Arivazhagan, B. [1 ,3 ]
Vasudevan, M. [1 ,2 ]
机构
[1] Indira Gandhi Ctr Atom Res, Mat Dev & Technol Grp, Kalpakkam, India
[2] Homi Bhabha Natl Inst, Training Sch Complex, Mumbai, India
[3] Indira Gandhi Ctr Atom Res, Mat Dev & Technol Grp, Kalpakkam 603102, Tamil Nadu, India
关键词
Automated ball indentation; strength properties; microstructure; 316LN stainless steel; weld joints; MECHANICAL-PROPERTIES; TENSILE-STRENGTH; MICROSTRUCTURE; BEHAVIOR; GAS; TIG;
D O I
10.1080/02670836.2023.2180892
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In the present study, strength variations across the type 316LN stainless steel weld joints processed by advanced hot wire tungsten inert gas, activated tungsten inert gas, and hybrid laser metal inert gas welding processes were evaluated using automated ball indentation technique. The secondary dendrite arm spacing (SDAS) associated with welding heat input and welding thermal cycles strongly influenced the strength properties across the weld joints. The strength properties were lower at 823 K compared to 298 K because of thermally activated deformations. The hybrid laser metal inert gas welding process exhibited significantly narrower weld and higher strength in the weld and heat-affected zone due to finer SDAS and grain size, respectively, than the other weld joints.
引用
收藏
页码:1709 / 1727
页数:19
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