Effects of Pulse Current on Solidification Structure of Austenitic Stainless Steel |
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Authors: | FAN Jin-hui CHEN Yu LI Ren-xing ZHAI Qi-jie |
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Affiliation: | 1. Shanghai University, Shanghai 200072, China; Hebei University of Science and Technology, Shijiazhuang 050054, China 2. Shanghai University, Shanghai 200072, China |
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Abstract: | The 1Cr18Ni9Ti specimens were treated respectively with pulse current under 520 V and 2 600 V during solidification and the solidification structure was observed. The results showed that pulse current can refine solidification grains, cut primary dentrities remarkably and reduce second dentritic arm spacing. The mechanism and effect are changed with operation parameters. |
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Keywords: | pulse current austenitic stainless steel solidification structure |
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