Study on the Effect of Aging Treatment on the Microstructure and Properties of Fe24Co27Ni32Cr8Al6Ti3 High-Entropy Alloy

被引：0
作者：
Huang, Mei [1 ,2 ,3 ]
Wang, Chenglei [1 ,2 ,3 ]
Lu, Jinxu [4 ]
Chen, Junfeng [5 ]
Li, Xin [1 ,2 ,3 ]
Zhu, Yatao [1 ,2 ,3 ]
Zhang, Jingya [1 ,2 ,3 ]
Chen, Hu [1 ,2 ,3 ]
Tan, Zhujiang [1 ,2 ,3 ]
机构：
[1] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Minist Educ, Guilin 541004, Peoples R China
[2] Guilin Univ Elect Technol, Guangxi Key Lab Informat Mat, Guilin 541004, Peoples R China
[3] Guilin Univ Elect Technol, Engn Res Ctr Elect Informat Mat & Devices, Minist Educ, Guilin 541004, Peoples R China
[4] Nanning Ind Investment Aluminum Foil Co Ltd, Nanning 530200, Peoples R China
[5] Guilin Aerosp Elect Co, Guilin 541002, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2024年
基金：
中国国家自然科学基金;
关键词：
biocompatibility; corrosion resistance; high-entropy alloys; wear resistance; MECHANICAL-PROPERTIES; WEAR BEHAVIOR; TEMPERATURE; TI;
D O I：
10.1007/s11665-024-10491-w
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, Fe24Co27Ni32Cr8Al6Ti3 high-entropy alloy (HEA) was prepared by non-self-consuming vacuum arc melting, and its microstructure, wear resistance, and physiological corrosion resistance were investigated by different aging treatments and compared with biomedical implantation alloy Ti-6Al-4 V (TC4). The results show that the HEAs after different aging treatments are all simple solid solution structures, which are all composed of the FCC matrix phase and the L12 phase composed. The microstructure of each alloy consists of equiaxed crystals, and the L12 precipitated phase shows a diffuse and uniform distribution on the matrix, with the aging time prolonging the fine nano-precipitated phase gradually coarsens, and its morphology transforms from a rounded spherical shape to a tetragonal one. The HEA with an aging time of 8 h has the highest hardness of about 388.9 HV, and the oxide layer covers a larger and more continuous area, which has the most favorable performance in terms of wear resistance. Fe24Co27Ni32Cr8Al6Ti3 HEA shows better corrosion resistance than TC4 alloy in SBF solution, and both of them meet the requirements of biomedical metal materials for cytocompatibility and hemocompatibility, which are expected to be applied in clinical medicine.
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页数：13
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