0.25Co0.25Ni0.25Cr0.125Mn0.125)100-xBx (x=8-16, at.%)合金為研究對(duì)象,采用真空電弧熔煉、真空水冷銅模吸鑄和真空熔融甩帶的方法制備出該系列合金的鑄錠、細(xì)棒和帶材。研究不同B含量對(duì)Fe0.25Co0.25Ni0.25Cr0.125Mn0.125高熵合金在不同鑄造工藝條件下的相組成、顯微組織演變和力學(xué)性能變化。結(jié)果表明通過(guò)控制B含量和冷卻速率,能夠?qū)崿F(xiàn)該體系高熵合金從fcc結(jié)構(gòu)向非晶結(jié)構(gòu)轉(zhuǎn)變,制備出偽高熵合金。并且在相同的鑄造工藝下,B含量的增加能細(xì)化晶粒,從而使得合金的強(qiáng)度和硬度隨B含量增加而增大。"/>

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不同鑄造工藝條件下B含量對(duì)Fe0.25Co0.25Ni0.25Cr0.125Mn0.125高熵合金組織及性能的影響
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中國(guó)礦業(yè)大學(xué)材料與物理學(xué)院

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中央高校基本科研業(yè)務(wù)費(fèi)專(zhuān)項(xiàng)資金(2018GF13)


Effect of B content on Microstructure and properties of fe0.25co0.25ni0.25cr0.125mn0.125 high entropy alloy under different casting conditions
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Affiliation:

School of Material Science and Engineering,China University of Mining and Technology,Xuzhou

Fund Project:

Fundamental Research Funds for the Central Universities (Grant No. 2018GF13)

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    摘要:

    以(Fe0.25Co0.25Ni0.25Cr0.125Mn0.125)100-xBx (x=8-16, at.%)合金為研究對(duì)象,采用真空電弧熔煉、真空水冷銅模吸鑄和真空熔融甩帶的方法制備出該系列合金的鑄錠、細(xì)棒和帶材。研究不同B含量對(duì)Fe0.25Co0.25Ni0.25Cr0.125Mn0.125高熵合金在不同鑄造工藝條件下的相組成、顯微組織演變和力學(xué)性能變化。結(jié)果表明通過(guò)控制B含量和冷卻速率,能夠?qū)崿F(xiàn)該體系高熵合金從fcc結(jié)構(gòu)向非晶結(jié)構(gòu)轉(zhuǎn)變,制備出偽高熵合金。并且在相同的鑄造工藝下,B含量的增加能細(xì)化晶粒,從而使得合金的強(qiáng)度和硬度隨B含量增加而增大。

    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.

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張金勇,吳宜謹(jǐn),趙聰聰,陳長(zhǎng)玖,張平,陳正,沈?qū)汖?A. Inoue.不同鑄造工藝條件下B含量對(duì)Fe0.25Co0.25Ni0.25Cr0.125Mn0.125高熵合金組織及性能的影響[J].稀有金屬材料與工程,2021,50(11):4135~4140.[Zhang Jinyong, Wu Yijin, Zhao Congcong, Chen Changjiu, Zhang Ping, Chen Zheng, Shen Baolong, 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.]
DOI：10.12442/j. issn.1002-185X.20200927

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  • 收稿日期:2020-11-30
  • 最后修改日期:2020-12-04
  • 錄用日期:2020-12-23
  • 在線(xiàn)發(fā)布日期: 2021-11-30
  • 出版日期: 2021-11-24