Formation and properties of Fe25Co25Ni25(P, C, B, Si)25 high-entropy bulk metallic glasses

被引：45
|
作者：
Xu, Yongqiang [1 ]
Li, Yanhui [1 ]
Zhu, Zhengwang [2 ]
Zhang, Wei [1 ]
机构：
[1] Dalian Univ Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Mat Modificat Laser & Electron Beams, Dalian 116024, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shenyang 110014, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2018年 / 487卷
基金：
中国国家自然科学基金;
关键词：
High-entropy alloys; Bulk metallic glasses; Glass-forming ability; Soft magnetic properties; Mechanical properties; SOLID-SOLUTION PHASE; FORMING ABILITY; SUPERCOOLED LIQUID; LOW COERCIVITY; ALLOYS; ELEMENTS; ORIGIN; SIZE;
D O I：
10.1016/j.jnoncrysol.2018.02.021
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
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.
引用
收藏
页码：60 / 64
页数：5
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