Analysis of cracking phenomena in continuous casting of 1Cr13 stainless steel billets with final electromagnetic stirring |
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Authors: | Yu Xu Rong-jun Xu Zheng-jie Fan Cheng-bin Li An-yuan Deng En-gang Wang |
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Affiliation: | 1. Key Laboratory of Electromagnetic Processing of Materials Ministry of Education, Northeastern University, Shenyang 110819, China;2. Research Institute, Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China |
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Abstract: | Solidification cracking that occurs during continuous casting of 1Cr13 stainless steel was investigated with and without final elec-tromagnetic stirring (F-EMS). The results show that cracks initiates and propagates along the grain boundaries where the elements of carbon and sulfur are enriched. The final stirrer should be appropriately placed at a location that is 7.5 m away from the meniscus, and the appropri-ate thickness of the liquid core in the stirring zone is 50 mm. As a stirring current of 250 A is imposed, it can promote columnar-equiaxed transition, decrease the secondary dendrite arm spacing, and reduce the segregation of both carbon and sulfur. F-EMS can effectively de-crease the amount of cracks in 1Cr13 stainless steel. |
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Keywords: | stainless steel cracking solidification continuous casting electromagnetic stirring |
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