新技术新工艺2024，Vol.441Issue(9) ：55-58.

WC-10％CoCrFeNiMo高熵硬质合金组织及力学性能研究

Research on Structure and Mechanical Properties of WC-10％CoCrFeNiMo High Entropy Cemented Carbide

胡兴 刘学刚 蒋立君 徐晨熙
新技术新工艺2024，Vol.441Issue(9) ：55-58.
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WC-10％CoCrFeNiMo高熵硬质合金组织及力学性能研究

Research on Structure and Mechanical Properties of WC-10％CoCrFeNiMo High Entropy Cemented Carbide

胡兴 1刘学刚 1蒋立君 1徐晨熙1
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作者信息

  • 1. 重庆通用工业(集团)有限责任公司,重庆 401336
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摘要

为解决传统WC-Co矿用硬质合金面对复杂地质情况的局限性,以高能球磨CoCrFeNiMo非等摩尔比高熵合金粉末作为粘结相制备了 WC-10％CoCrFeNiMo矿用高熵硬质合金.利用扫描电镜、金相显微镜、维氏硬度计等,对WC-10％CoCrFeNiMo与WC-10％Co硬质合金的显微组织及物理-力学性能进行研究比较.结果表明,与WC-10％Co矿用硬质合金相比,WC-10％CoCrFeNiMo高熵硬质合金在具备相同的FCC结构下展现出良好的综合力学性能,在1 450 ℃烧结的合金维氏硬度达到(1 375±20)HV30,冲击韧性达到(56±5)kJ/m2.

Abstract

In order to solve the limitation of traditional WC-Co mining cemented carbide in the face of complex geological conditions,the WC-10％CoCrFeNiMo mining high-entropy cemented carbide was prepared by high-energy ball milling CoCrFeNiMo Non-equal molar ratio high-entropy alloy powder as the binder phase.The microstructure and physical-me-chanical properties of WC-10％CoCrFeNiMo and WC-10％Co cemented carbide were studied and compared by using scan-ning electron microscope,metallographic microscope,Vickers hardness tester and so on.The results showed that compared with WC-10％Co mining cemented carbide,WC-10％CoCrFeNiMo high-entropy cemented carbide exhibited good compre-hensive mechanical properties under the same FCC structure.The Vickers hardness of the alloy sintered at 1 450 ℃ reached(1 375±20)HV30,and the impact toughness reached(56±5)kJ/m2.

关键词

硬质合金/高熵合金/粘结相/微观组织/力学性能

Key words

cemented carbide/high entropy alloy/bonding phase/microstructure/mechanical properties

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出版年

2024
新技术新工艺
中国兵器工业新技术推广研究所

新技术新工艺

影响因子：0.294
ISSN：1003-5311
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