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个人信息Personal Information
副教授
博士生导师
硕士生导师
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：材料科学与工程学院
学科：材料物理与化学. 材料学
办公地点：大连理工大学新三束实验室410
联系方式：0411-84706400
电子邮箱：yhli@dlut.edu.cn
Formation and properties of Fe25Co25Ni25(P, C, B, Si)(25) high-entropy bulk metallic glasses
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论文类型：期刊论文
发表时间：2018-05-01
发表刊物：JOURNAL OF NON-CRYSTALLINE SOLIDS
收录刊物：SCIE、EI
卷号：487
页面范围：60-64
ISSN号：0022-3093
关键字：High-entropy alloys; Bulk metallic glasses; Glass-forming ability; Soft magnetic properties; Mechanical properties
摘要：New ferromagnetic high-entropy bulk metallic glasses (HE-BMGs) with superior glass-fanning ability (GFA) and high strength were developed in the pseudo quaternary FeCoNi(P, C, B, Si) system. The HE-BMG rods were fabricated by topper mold casting method in the composition range of Fe25Co25Ni25(P0.3-0.5C0.1-0.3B0.2-0.3Si0.1-0.3)(25), in which the Fe25Co25Ni25(P0.4C0.2B0.2Si0.2)(25) and Fe25Co25Ni25(P0.5C0.1B0.2Si0.2)(25) alloys Possess the largest critical diameter of 2.0 mm. The HE-BMGs exhibit excellent soft magnetic and mechanical properties, i.e., low coercivity of 0.8-2.1 A/m, high saturation magnetization of 0.80-0.86 T, high compressive yield strength of 2970-3076 MPa, and large plastic strain of 1.9-2.1%. The mechanisms of the high GFA and good magnetic softness of the alloys were discussed.