Effect of pulse frequency on microstructure of 21% Cr ferritic stainless steel in pulsed gas tungsten arc welding

Shengsun Hu; Ruifeng Han; Junqi Shen; Jian Han; Haigang Xu

doi:10.1007/s12209-013-1803-4

Transactions of Tianjin University ›› 2013, Vol. 19 ›› Issue (2) : 127 -129. DOI: 10.1007/s12209-013-1803-4

Article

Effect of pulse frequency on microstructure of 21% Cr ferritic stainless steel in pulsed gas tungsten arc welding

Shengsun Hu ¹¹⁸⁰³^,²¹⁸⁰³^,^a
, Ruifeng Han ¹¹⁸⁰³^,²¹⁸⁰³
, Junqi Shen ¹¹⁸⁰³^,²¹⁸⁰³
, Jian Han ³¹⁸⁰³
, Haigang Xu ³¹⁸⁰³

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Abstract

Thin plates of 21% Cr ferritic stainless steel welded by pulsed gas tungsten arc welding at different pulse frequencies were investigated for the microstructure characteristics and hardness behavior. The welds contained columnar grains in the outer part and fine equiaxed grains in the central region due to the pulsed process.

Keywords

ferritic stainless steel / microstructure / pulse frequency

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Shengsun Hu, Ruifeng Han, Junqi Shen, Jian Han, Haigang Xu. Effect of pulse frequency on microstructure of 21% Cr ferritic stainless steel in pulsed gas tungsten arc welding. Transactions of Tianjin University, 2013, 19(2): 127-129 DOI:10.1007/s12209-013-1803-4

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