| CrFeCoNiB0.05Tix高熵合金的显微组织和力学性能 |
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| 引用本文： | 姜越,朱柏祥,李秀明,谭亚平. CrFeCoNiB0.05Tix高熵合金的显微组织和力学性能[J]. 金属热处理, 2022, 47(8): 58-62. DOI: 10.13251/j.issn.0254-6051.2022.08.009 |
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| 作者姓名： | 姜越 朱柏祥 李秀明 谭亚平 |
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| 作者单位： | 哈尔滨理工大学 材料科学与化学工程学院, 黑龙江 哈尔滨 150080 |
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| 基金项目： | 黑龙江省优秀青年基金(YQ2020E031) |
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| 摘 要： | 采用机械合金化和放电等离子烧结工艺制备了CrFeCoNiB0.05Tix(x=0.2、0.4、0.6、0.8、1.0)高熵合金材料,通过X射线衍射分析、扫描电镜观察和能谱分析以及维氏硬度测试和压缩强度测试等,研究了Ti含量对高熵合金微观组织和力学性能的影响。结果表明,CrFeCoNiB0.05Tix(x=0.2、0.4、0.6、0.8、1.0)高熵合金由FCC、BCC和α相组成。当x=1.0时,合金由BCC结构转向HCP结构并析出新相Laves相,其具有最高硬度416.54 HV0.2。当x=0.8时,合金达到最大抗压强度586.3 MPa。
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| 关 键 词： | 高熵合金 放电等离子烧结 力学性能 微观组织 |
| 收稿时间： | 2022-03-11 |
Microstructure and mechanical properties of CrFeCoNiB0.05Tix high-entropy alloy |
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| Jiang Yue,Zhu Baixiang,Li Xiuming,Tan Yaping. Microstructure and mechanical properties of CrFeCoNiB0.05Tix high-entropy alloy[J]. Heat Treatment of Metals, 2022, 47(8): 58-62. DOI: 10.13251/j.issn.0254-6051.2022.08.009 |
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| Authors: | Jiang Yue Zhu Baixiang Li Xiuming Tan Yaping |
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| Affiliation: | School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin Heilongjiang 150080, China |
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| Abstract: | In order to study the effect of Ti content on microstructure and mechanical properties of high-entropy alloys, the CrFeCoNiB0.05Tix(x=0.2,0.4,0.6,0.8,1.0) high-entropy alloy was prepared by mechanical alloying and spark-plasma sintering, then the microstructure was analyzed by X-ray diffraction, scanning electron microscope observation, energy spectrum analysis, and the properties were analyzed by Vickers hardness test and compressive strength test. The results show that the CrFeCoNiB0.05Tix(x=0.2,0.4,0.6,0.8,1.0) high-entropy alloy is composed of FCC, BCC and α phases. Moreover, when x is 1.0, the alloy changes from BCC structure to HCP structure, and a new Laves phase is precipitated, the alloy has the highest hardness of 416.54 HV0.2. When x is 0.8, the alloy reaches the maximum compressive strength of 586.3 MPa. |
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| Keywords: | high-entropy alloy spark-plasma sintering mechanical properties microstructure |
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