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论文类型：期刊论文

发表时间：2011-04-07

发表刊物：JOURNAL OF ALLOYS AND COMPOUNDS

收录刊物：SCIE、EI

卷号：509

期号：14

页面范围：4835-4838

ISSN号：0925-8388

关键字：Intermetallics; Microstructure; Rotating magnetic field; Electromagnetic stirring

摘要：Rotating magnetic field is introduced in the production process of Ni-Al precursor alloy of skeletal Ni catalyst. The results showed that the big dendrites of Al(3)Ni(2) disappeared, the size of Al(3)Ni(2) decreased from 64.5 mu mto 37.2 and 35.5 mu m, phase content of Al(3)Ni(2) decreased while Al(3)Ni increased after applying field current of 80A and 140 A, respectively. The change of phase content is probably caused by the increase of surface area between the Al(3)Ni(2) phase and fluid which is favorable to the peritectic reaction. (C) 2011 Elsevier B. V. All rights reserved.