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Microstructure, mechanical and wear properties of AZ31/CoCrFeNi composites fabricated by friction stir processing

Wen WangNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaYuan FANGNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaPai PengNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaZhijuan ZhangNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaPeng HANNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaTing ZhangNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaZhihao LiuNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaXiaohu GuanNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaZhi WangNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaKe QiaoNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaKuaishe WangNational and Local Joint Engineering Research Center for Functional Materials Processing, Xi’an University of Architecture and Technology, Xi’an 710055, China

2023en

ABI

Annotatsiya

AZ31 magnesium (Mg) alloy composites reinforced with CoCrFeNi high-entropy alloy (HEA) particles were fabricated by friction stir processing (FSP). OM, SEM, EDS, and EBSD were used to characterize the microstructure of composites. Mechanical and wear properties of the composites were investigated by tensile, microhardness, and dry sliding wear tests. The results revealed that HEA particles were homogeneously distributed and exhibited good metallurgical bonding with Mg matrix. The yield strength, ultimate tensile strength, and microhardness of the composites were 80 MPa, 46 MPa, and HV 54.9 higher than those of the base metal (BM), respectively. Fine-grained strengthening was the main strengthening mechanism whose contribution rate on the yield strength was 43.9%. The average friction coefficient of the composites was decreased from 0.331 of BM to 0.240, and the wear mechanism was changed from adhesive wear of BM to abrasive wear.

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Identifikatorlar

DOI: 10.1016/s1003-6326(23)66262-4

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