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不同铸造工艺条件下B含量对Fe0.25Co0.25Ni0.25Cr0.125Mn0.125高熵合金组织及性能的影响
引用本文:张金勇,吴宜谨,赵聪聪,陈长玖,张平,陈正,沈宝龙,A. Inoue.不同铸造工艺条件下B含量对Fe0.25Co0.25Ni0.25Cr0.125Mn0.125高熵合金组织及性能的影响[J].稀有金属材料与工程,2021,50(11):4135-4140.
作者姓名:张金勇  吴宜谨  赵聪聪  陈长玖  张平  陈正  沈宝龙  A. Inoue
作者单位:中国矿业大学材料与物理学院,中国矿业大学材料与物理学院,中国矿业大学材料与物理学院,中国矿业大学材料与物理学院,中国矿业大学材料与物理学院,中国矿业大学材料与物理学院,中国矿业大学材料与物理学院,中国矿业大学材料与物理学院
基金项目:中央高校基本科研业务费专项资金(2018GF13)
摘    要:以(Fe0.25Co0.25Ni0.25Cr0.125Mn0.125)100-xBx (x=8-16, at.%)合金为研究对象,采用真空电弧熔炼、真空水冷铜模吸铸和真空熔融甩带的方法制备出该系列合金的铸锭、细棒和带材。研究不同B含量对Fe0.25Co0.25Ni0.25Cr0.125Mn0.125高熵合金在不同铸造工艺条件下的相组成、显微组织演变和力学性能变化。结果表明通过控制B含量和冷却速率,能够实现该体系高熵合金从fcc结构向非晶结构转变,制备出伪高熵合金。并且在相同的铸造工艺下,B含量的增加能细化晶粒,从而使得合金的强度和硬度随B含量增加而增大。

关 键 词:高熵非晶合金  相组成  微观组织演变  力学性能
收稿时间:2020/11/30 0:00:00
修稿时间:2020/12/4 0:00:00

Effect of B content on Microstructure and properties of fe0.25co0.25ni0.25cr0.125mn0.125 high entropy alloy under different casting conditions
Zhang Jinyong,Wu Yijin,Zhao Congcong,Chen Changjiu,Zhang Ping,Chen Zheng,Shen Baolong and A. Inoue.Effect of B content on Microstructure and properties of fe0.25co0.25ni0.25cr0.125mn0.125 high entropy alloy under different casting conditions[J].Rare Metal Materials and Engineering,2021,50(11):4135-4140.
Authors:Zhang Jinyong  Wu Yijin  Zhao Congcong  Chen Changjiu  Zhang Ping  Chen Zheng  Shen Baolong and A Inoue
Affiliation:School of Material Science and Engineering,China University of Mining and Technology,Xuzhou,School of Material Science and Engineering,China University of Mining and Technology,Xuzhou,School of Material Science and Engineering,China University of Mining and Technology,Xuzhou,School of Material Science and Engineering,China University of Mining and Technology,Xuzhou,School of Material Science and Engineering,China University of Mining and Technology,Xuzhou,School of Material Science and Engineering,China University of Mining and Technology,Xuzhou,School of Material Science and Engineering,China University of Mining and Technology,Xuzhou,School of Material Science and Engineering,China University of Mining and Technology,Xuzhou
Abstract:In this paper, the (Fe0.25Co0.25Ni0.25Cr0.125Mn0.125)100-xBx (x=8-16, at.%) alloys were prepared by vacuum arc melting, ejection casting into a copper mold and single-roller melt-spinning. The phase composition, microstructure evolution and mechanical properties of the high entropy alloys with different B content were studied under different casting conditions. The results show that the high entropy alloys can be transformed from fcc phase to amorphous phase by controlling B content and cooling rate. In the same casting process, the grains can be refined by adding B content, so that the strength and hardness of the alloys increase with the increase of B content.
Keywords:High-entropy amorphous alloy  phase composition  microstructure evolution  mechanical properties
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