Effect of Mn content on crystallization behaviors and magnetic properties of FeCoNiBMn high-entropy amorphous alloys

被引：6

作者：

Wang, Shaohua ^{[1
]}

Wang, Fang ^{[3
]}

Liang, Yanqin ^{[1
,2
]}

Jiang, Hui ^{[1
,2
]}

Li, Zhaoyang ^{[1
,2
]}

Wu, Shuilin ^{[1
,2
]}

Chang, Chuntao ^{[3
]}

Zhu, Shengli ^{[1
,2
]}

Cui, Zhenduo ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300350, Peoples R China

[2] Tianjin Key Lab Composite & Funct Mat, Tianjin 300350, Peoples R China

[3] Dongguan Univ Technol, Sch Mech Engn, Dongguan 523808, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 28卷

基金：

中国国家自然科学基金;

关键词：

High -entropy amorphous alloy; Soft magnetic properties; Crystallization behaviors; Mechanical property; BULK METALLIC GLASSES; SOLID-SOLUTION; FE; NI; STABILITY; ELEMENTS; CO;

D O I：

10.1016/j.jmrt.2024.01.052

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

FeCoNi-based high-entropy alloys (HEAAs) attracted much attention because of their good thermodynamic stability, mechanical properties and soft magnetic properties. In this paper, Fe22Co22Ni22B34-xMnx (x = 6-22 at %) HEAAs were designed and the effects of Mn on the crystallization behaviors, magnetic performance, and mechanical property were investigated. The crystallization behaviors of the FeCoNiBMn HEAAs are: 1) 12-16 at % Mn: am -> am' + M23B6 -> M23B6 + fcc; 2) 18 at% Mn: am -> am' + bcc + M23B6 -> bcc + M23B6 -> fcc + M23B6; and 3) 20-22 at% Mn: am -> am' + bcc -> bcc + M23B6 -> fcc + M23B6. Two parameters omega A and VEC are proposed to predict the primary precipitates of FeCoNi-based HEAAs. All as-spun ribbons exhibit excellent soft magnetic properties with a very low coercivity (Hc) of less than 1.5 A/m and a maximum saturation magnetization (Bs) of 0.82 T. The 14 at% Mn alloy exhibits very low Hc of less than 4 A/m even after complete crystallization. Magnetic properties and Vickers hardness of crystalline ribbons are closely related to crystallization behaviors.

引用

页码：4754 / 4763

页数：10

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