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Effect of pulse frequency on microstructure of 21% Cr ferritic stainless steel in pulsed gas tungsten arc welding |
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| Authors: | Shengsun Hu Ruifeng Han Junqi Shen Jian Han Haigang Xu |
| Institution: | 11803. School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China 21803. Tianjin Key Laboratory of Advanced Joining Technology, Tianjin, 300072, China 31803. Research Institiute, Baoshan Iron & Steel Co., Ltd., Shanghai, 200431, China |
| 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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