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论文类型：期刊论文

发表时间：2013-06-01

发表刊物：MATERIALS RESEARCH INNOVATIONS

收录刊物：SCIE、EI、Scopus

卷号：17

期号：3

页面范围：207-211

ISSN号：1432-8917

关键字：Bilayer hollow billets; Horizontal continuous casting; Rotating magnetic field

摘要：The possibility for producing a bimetallic hollow billet by means of direct connection of liquid phases was investigated. Bilayer hollow billets with diameter of 83 mm and external thickness of 6 mm were fabricated by horizontal electromagnetic continuous casting. Surface features and microstructures of ingots were observed and the effect of rotating magnetic field on grain size was studied. The results show that when the casting speed is 120 mm min(-1) and input current intensity is 100 A, bilayer hollow billets with well surface features combine the external and internal alloys by metallurgical bonding, and the defect free bonding interface can be seen clearly.