Microstructure and sliding wear behavior of (AlCoCrFeNi)1-x(WC)x

doi:10.1016/j.ceramint.2022.03.238

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	Microstructure and sliding wear behavior of (AlCoCrFeNi)1-x(WC)x
	Zhang, Penlin 1; Chen, Jialin 1; Cheng, Qianqian 2
刊名	Ceramics International
	2022-07-01
卷号	48 期号:13 页码:19399-19411
关键词	Carbides Chromium compounds Entropy Friction High-entropy alloys Hot pressing Oxide films Sintering Spinodal decomposition Tribology Wear of materials Wear resistance Alloy composites Body-centered-cubic phase Body-centred cubic Face-centred cubic High entropy alloys Microstructure wear Sliding wear behaviour Tribological properties WC Wide temperature ranges
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2022.03.238
英文摘要	In this study, (AlCoCrFeNi)1-x(WC)x high-entropy alloy composites with different WC weight ratios (x = 0, 10, 30, 50 wt%) were prepared using the gas atomization method and a vacuum hot-pressing sintering technique. The phase compositions, microstructures, and tribological properties in a wide temperature domain of the (AlCoCrFeNi)1-x(WC)x composites were evaluated over a wide temperature range. The results showed that an increase in the WC weight fraction promoted the diffusion of Fe, Co, and Ni from the body-centered cubic (BCC) and face-centered cubic (FCC) phases to generate η-carbide phases containing WC. This hindered the transformation of the BCC phase to the FCC+σ phase, resulting in a decrease in the FCC content and an increase in the BCC phase. The BCC phase further decomposed into the A2+B2 phase by spinodal decomposition. At the same time, the coupling strengthening effect of the η-carbide, BCC, and WC phases resulted in a significant increase in the hardness of the (AlCoCrFeNi)1-x(WC)x composites. The characterization of the tribological properties of the (AlCoCrFeNi)1-x(WC)x composites over a wide temperature range showed that the friction coefficient decreased with the addition of WC. In addition, the (AlCoCrFeNi)1-x(WC)x composites showed good tribological properties and wear resistance at high temperatures, i.e., the wear rate of the composites decreased significantly. This can be attributed to the formation of an oxide film on the worn surface. © 2022 Elsevier Ltd and Techna Group S.r.l.
WOS研究方向	Materials Science
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000806827100001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158397]
专题	兰州理工大学
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, No. 287 Langongping Road, Lanzhou; 730050, China; 2.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou; 730000, China
推荐引用方式 GB/T 7714	Zhang, Penlin,Chen, Jialin,Cheng, Qianqian. Microstructure and sliding wear behavior of (AlCoCrFeNi)1-x(WC)x[J]. Ceramics International,2022,48(13):19399-19411.
APA	Zhang, Penlin,Chen, Jialin,&Cheng, Qianqian.(2022).Microstructure and sliding wear behavior of (AlCoCrFeNi)1-x(WC)x.Ceramics International,48(13),19399-19411.
MLA	Zhang, Penlin,et al."Microstructure and sliding wear behavior of (AlCoCrFeNi)1-x(WC)x".Ceramics International 48.13(2022):19399-19411.