江洪林,胡志方,袁学韬,尹延西.TiZrHfNbSc难熔高熵合金组织和力学性能研究[J].稀有金属材料与工程,2020,49(8):2820~2824.[Jiang Honglin,Hu Zhifang,Yuan Xuetao,YinYanxi.Microstructure and Mechanical Properties of TiZrHfNbSc Refractory High Entropy Alloy[J].Rare Metal Materials and Engineering,2020,49(8):2820~2824.]
TiZrHfNbSc难熔高熵合金组织和力学性能研究
投稿时间:2019-07-24  修订日期:2019-10-08
中文关键词:  高熵合金  组织结构  力学性能  固溶强化
基金项目:国家科技部中俄国际合作专项项(2010DFR50800)
中文摘要:
      利用真空电弧熔炼设备制备了新型TiZrHfNbSc难熔高熵合金,利用XRD、SEM、DSC等方法分析了合金的显微组织,利用显微硬度计、微控电子万能试验机测定了合金的硬度及力学性能。研究结果表明:TiZrHfNbSc难熔高熵合金为单一无序的BCC固溶体结构,晶格常数a=3.443?,合金密度约为7.16g/cm3;合金的维氏显微硬度约380,屈服强度σ0.2=650MPa,压缩变形率达到60%以上,合金的强化机制为固溶强化。
Microstructure and Mechanical Properties of TiZrHfNbSc Refractory High Entropy Alloy
英文关键词:High entropy alloys  Microstructure  Mechanical properties  Solid solution strengthening  
英文摘要:
      The new TiZrHfNbSc refractory high-entropy alloy was prepared by vacuum arc melting with argon shield. The microstructure were studied by XRD, SEM and DSC, the hardness and mechanical properties were measured by vickers microhardness tester and micro-control electronic universal testing machine. The results showed that the TiZrHfNbSc refractory high-entropy alloy had a single disordered BCC solid solution structure with the lattice parameter a=3.443? .The alloy density was 7.16 g/cm3 and the Vickers microhardness was 380. The alloy had high compression yield strength(σ0. 2=650MPa) and the compression deformation rate is more than 60%.The strengthening mechanism of the alloy is solid solution strengthening.
作者单位E-mail
江洪林 1有研工程技术研究院有限公司稀有金属冶金材料研究所 jianghl77@163.com 
胡志方 1有研工程技术研究院有限公司稀有金属冶金材料研究所  
袁学韬 1有研工程技术研究院有限公司稀有金属冶金材料研究所  
尹延西 1有研工程技术研究院有限公司稀有金属冶金材料研究所 yinyanxi@163.com 
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