Effects of reheating time on microstructure and tensile properties of SiCp/2024 Al-based composites fabricated using powder thixoforming

doi:10.1007/s12540-017-6363-z

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	Effects of reheating time on microstructure and tensile properties of SiCp/2024 Al-based composites fabricated using powder thixoforming
	Li, Pu Bo; Chen, Ti Jun; Zhang, Su Qing
刊名	Metals and Materials International
	2017
卷号	23 期号:1 页码:193-201
关键词	Coarsening Composite materials Fabrication Hot working Microstructure Rheocasting Silicon Silicon carbide Tensile strength Tensile testing
ISSN号	15989623
DOI	10.1007/s12540-017-6363-z
英文摘要	The present investigation addresses a new technology, named powder thixoforming, used to fabricate SiCp/2024 Al-based composites. The effects of reheating time on microstructure and mechanical properties have been studied. The results indicated that the quantity of liquid, the coarsening behavior of the primary particles, the subsequent plastic deformation occurring during thixoforging, and thus the resulting microstructural compactness and mechanical properties changed as a function of reheating time. The best comprehensive tensile properties of the composite, that is an ultimate tensile strength of 370 MPa and an elongation of 4.4%, were obtained after reheating for 80 min at 625 °C, which was an increase of 23.3% and a decrease of 57.7%, respectively, compared to the 2024 alloy thixoforged under the same conditions as the composite. The fracturing in the composites occurred through interconnecting cracked SiCp and debonded SiC/Al interfaces caused by a higher concentration of stress and a coalescence of microvoids. © 2017, The Korean Institute of Metals and Materials and Springer Science+Business Media Dordrecht.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	Korean Institute of Metals and Materials
WOS记录号	WOS:000392036700022
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151330]
专题	兰州理工大学
作者单位	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Pu Bo,Chen, Ti Jun,Zhang, Su Qing. Effects of reheating time on microstructure and tensile properties of SiCp/2024 Al-based composites fabricated using powder thixoforming[J]. Metals and Materials International,2017,23(1):193-201.
APA	Li, Pu Bo,Chen, Ti Jun,&Zhang, Su Qing.(2017).Effects of reheating time on microstructure and tensile properties of SiCp/2024 Al-based composites fabricated using powder thixoforming.Metals and Materials International,23(1),193-201.
MLA	Li, Pu Bo,et al."Effects of reheating time on microstructure and tensile properties of SiCp/2024 Al-based composites fabricated using powder thixoforming".Metals and Materials International 23.1(2017):193-201.