Effect of SiC particles content on the hot tearing susceptibility of SiC/Al5Cu composites

doi:10.1016/j.ceramint.2020.01.065

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	Effect of SiC particles content on the hot tearing susceptibility of SiC/Al5Cu composites
	Zhang, Xiaobo 2,3; Li, Dong 2,3; Zeng, Long 1; Wan, Xiongbin 2,3; Feng, Baigang 2,3; Ren, Junqiang 2,3
刊名	Ceramics International
	2020-06-01
卷号	46 期号:8 页码:10610-10618
关键词	Binary alloys Grain size and shape Nucleation Silicon carbide Solidification Grain refining efficiency Heterogeneous nucleation Hot tearing susceptibility Matrix composite Residual liquid metals Shrinkage strains SiC particles Solidification temperature
ISSN号	02728842
DOI	10.1016/j.ceramint.2020.01.065
英文摘要	The aim of present research was to investigate the hot tearing susceptibility (HTS) of SiC reinforced Al5Cu matrix composites. The HTS value of Al5Cu was 19.3, and the HTS values were 6.14, 16.05 and 44.98, corresponding to 0.5SiC/Al5Cu, 1SiC/Al5Cu and 2SiC/Al5Cu, respectively. The results indicated that the serious HTS of Al5Cu was obviously improved when the content of SiC particle was less than 1%, especially 0.5% SiC. Grain size and solidification temperature range were two significant factors for the HTS. For composites, SiC served as effective heterogeneous nucleation cores obviously increased the grain refining efficiency. The grain size was 55.24 μm for Al5Cu, the grain size of composites decreased to 42.77 μm (0.5SiC/Al5Cu), 36.19 μm (1SiC/Al5Cu) and 37.42 μm (2SiC/Al5Cu). Solidification temperature range of Al5Cu alloy was 110.49 °C. Compared with Al5Cu matrix alloy, the solidification temperature rang decreased for 0.5SiC/Al5Cu (108.54 °C) and 1SiC/Al5Cu (109.42 °C), but the 2SiC/Al5Cu had large solidification temperature range of 111.99 °C. The HTS improvement was mainly attributed to the refined grain and shortened solidification temperature range, which increased the residual liquid metal feeding property and decreased the shrinkage strain. In addition, the HTS mechanism of composites was discussed in detail. © 2020 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:000528481900078
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151011]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai; 200240, China 2.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 3.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China;
推荐引用方式 GB/T 7714	Zhang, Xiaobo,Li, Dong,Zeng, Long,et al. Effect of SiC particles content on the hot tearing susceptibility of SiC/Al5Cu composites[J]. Ceramics International,2020,46(8):10610-10618.
APA	Zhang, Xiaobo,Li, Dong,Zeng, Long,Wan, Xiongbin,Feng, Baigang,&Ren, Junqiang.(2020).Effect of SiC particles content on the hot tearing susceptibility of SiC/Al5Cu composites.Ceramics International,46(8),10610-10618.
MLA	Zhang, Xiaobo,et al."Effect of SiC particles content on the hot tearing susceptibility of SiC/Al5Cu composites".Ceramics International 46.8(2020):10610-10618.