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论文类型：期刊论文

发表时间：2016-10-15

发表刊物：JOURNAL OF NON-CRYSTALLINE SOLIDS

收录刊物：SCIE、EI、Scopus

卷号：450

页面范围：1-5

ISSN号：0022-3093

关键字：Composition design; Fe-B-Si-Zr bulk glassy alloys; Magnetic properties; Double cluster model; Structure-properties correlation

摘要：The present study is devoted to developing high Fe-content Fe-B-Si-Zr bulk metallic glasses (BMGs) with good soft magnetic properties and exploring their structure-property correlations. Using the atomic-cluster-plus glue-atom model, a series of high Fe-content Fe-B-Si-Zr quaternary alloys, namely [Si-B2Fe7.6Zr0.4]Fe + Fe-x (x = 0, 0.5, 1, 1.5, 2, 2.5 and 3), have been derived from a basic BMG composition formula of [Si-B2Fe7.6Zr0.4]Fe (Fe71.7B16.7Si8.3Zr3.3). Our experimental results show that the critical glass formation size gradually decreases from 2.5 mm to 1 mm with increasing Fe-content. Si-B2Fe7.6Zr0.4]Fe + Fe-2.5 (Fe76.5B13.8Si6.9Zr2.8) glassy alloys exhibit high saturation magnetization of B-s similar to 1.54T and a very low coercive force of H-c similar to 0.5 A/m. The deceasing tendencies of the glass transition temperature, thermal stability, glass-forming ability and Curie temperature with increasing Fe-content in the series of alloys are discussed in view of the occurrence of micro-segregation of Fe clusters in the model structure. (C) 2016 Published by Elsevier B.V.