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Effects of minor B addition on microstructure and properties of AlCoFeNi eutectic high-entropy alloy 被引量:1
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作者 Jun-jie FENG Shuo GAO +8 位作者 Kun HAN Yi-dong MIAO Ji-qiu QI Fu-xiang WEI Yao-jian REN zhen-zhen zhan Yan-wei SUI Zhi SUN Peng CAO 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2021年第4期1049-1058,共10页
The simultaneous strengthening of mechanical and magnetic properties is an ideal fabrication strategy for soft-magnetic materials. A non-equiatomic Al19Co20Fe20Ni41 eutectic high-entropy alloy was prepared to investig... The simultaneous strengthening of mechanical and magnetic properties is an ideal fabrication strategy for soft-magnetic materials. A non-equiatomic Al19Co20Fe20Ni41 eutectic high-entropy alloy was prepared to investigate the alloying effect of B on the microstructure evolution, phase formation, mechanical and soft-magnetic properties. With the increase in B content, the microstructures of(Al19Co20Fe20Ni41)100-xBx alloys transformed from the initial lamellar eutectic structure(x=0) to the divorced eutectic structure(x>0.6). Fine borides precipitated in the intergranular phase(x≥0.6). The hardness of alloys increased from HV 328.66 to HV 436.34 and the compression mechanical performance displayed a transition from plastic material to brittle material. The Al19Co20Fe20Ni41 alloy possesses good soft-magnetic properties, and the minor B addition has little effect on it. Increasing the resistivity can effectively reduce the eddy current loss when used as a soft-magnetic material. 展开更多
关键词 high-entropy alloy B element microstructure mechanical properties soft-magnetic properties
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