V对富Fe非等原子比FeCrCoNi高熵合金组织及性能的影响

doi:10.13251/j.issn.0254-6051.2024.05.004

金属热处理 ›› 2024, Vol. 49 ›› Issue (5): 22-28.DOI: 10.13251/j.issn.0254-6051.2024.05.004

V对富Fe非等原子比FeCrCoNi高熵合金组织及性能的影响

王书亮¹, 毛一点¹, 李奇霖¹, 周禄江¹, 西宇辰¹, 张华礼²

1.西南石油大学新能源与材料学院, 四川成都 610500;
2.中国石油西南油气田公司工程技术研究院, 四川成都 610017

收稿日期:2023-11-05 修回日期:2024-03-22 出版日期:2024-05-25 发布日期:2024-06-28
作者简介:王书亮(1978—),男,教授,博士,主要研究方向为金属材料及腐蚀与防护,E-mail:wsliang1465@126.com。
基金资助:
钒钛资源综合利用产业技术创新战略联盟协同研发项目

Effect of V on microstructure and properties of Fe-rich non-equiatomic FeCrCoNi high-entropy alloy

Wang Shuliang¹, Mao Yidian¹, Li Qilin¹, Zhou Lujiang¹, Xi Yuchen¹, Zhang Huali²

1. School of New Energy and Materials, Southwest Petroleum University, Chengdu Sichuan 610500, China;
2. Petrochina Southwest Oil and Gas Field Company Engineering Technology Research Institute, Chengdu Sichuan 610017, China

Received:2023-11-05 Revised:2024-03-22 Online:2024-05-25 Published:2024-06-28

摘要/Abstract

摘要： 采用机械球磨与放电等离子烧结的方法进行FeCrCoNi高熵合金的制备,通过降低Co和Ni含量,从而引入V元素,研究了V含量对Fe₄₅Cr₁₅Co₁₀Ni₃₀高熵合金组织与力学性能的影响。研究发现,与Fe₄₅Cr₁₅Co₁₀Ni₃₀合金相比,含V的高熵合金呈现出富V的BCC相,同时随着V含量的增加,BCC相的形貌与分布也出现了变化。Fe₄₅Cr₁₅Co_2.5Ni_22.5V₁₅合金的屈服强度与抗压强度分别达到最高的869±8 MPa和1675±5 MPa,同时其应变率46.1%±1.7%也维持了较高的水平。V的引入有效提升了Fe₄₅Cr₁₅Co₁₀Ni₃₀合金的硬度与压缩性能,可得到强度与塑性匹配良好的高熵合金。

关键词: FeCrCoNi高熵合金, 机械球磨, 放电等离子烧结, V元素, 力学性能

Abstract: FeCrCoNi high-entropy alloys were prepared using mechanical ball milling and discharge plasma sintering, the V element was introduced by decreasing the content of Co and Ni elements, and the effect of V on microstructure and mechanical properties of the Fe₄₅Cr₁₅Co₁₀Ni₃₀ alloy was investigated. The results show that the V-containing high-entropy alloys form V-rich BCC phases compared with the Fe₄₅Cr₁₅Co₁₀Ni₃₀ alloy, the morphology and distribution of the BCC phases change with the increase of V content. The yield strength and compressive strength of the Fe₄₅Cr₁₅Co_2.5Ni_22.5V₁₅ alloy reach the highest of 869 ± 8 MPa and 1675 ±5 MPa, respectively, and the strain rate of 46.1%±1.7%, also maintains a high level. The introduction of V effectively improves the hardness and compressive properties of the Fe₄₅Cr₁₅Co₁₀Ni₃₀ alloy, and the alloy with good strength and plasticity matching can be obtained.

Key words: FeCrCoNi high-entropy alloy, mechanical ball milling, discharge plasma sintering, V element, mechanical properties

中图分类号:

TG146.2

王书亮, 毛一点, 李奇霖, 周禄江, 西宇辰, 张华礼. V对富Fe非等原子比FeCrCoNi高熵合金组织及性能的影响[J]. 金属热处理, 2024, 49(5): 22-28.

Wang Shuliang, Mao Yidian, Li Qilin, Zhou Lujiang, Xi Yuchen, Zhang Huali. Effect of V on microstructure and properties of Fe-rich non-equiatomic FeCrCoNi high-entropy alloy[J]. Heat Treatment of Metals, 2024, 49(5): 22-28.

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V对富Fe非等原子比FeCrCoNi高熵合金组织及性能的影响

Effect of V on microstructure and properties of Fe-rich non-equiatomic FeCrCoNi high-entropy alloy

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