Toughening mechanisms of solution-treated SiCp/6061 aluminum matrix composites fabricated via powder thixoforming

doi:10.1557/jmr.2018.268

	Toughening mechanisms of solution-treated SiCp/6061 aluminum matrix composites fabricated via powder thixoforming
	Zhang, Xuezheng; Chen, Tijun
刊名	JOURNAL OF MATERIALS RESEARCH
	2018-09-28
卷号	33 期号:18 页码:2728-2740
关键词	composite ductility powder processing
ISSN号	0884-2914
DOI	10.1557/jmr.2018.268
英文摘要	The powder thixoforming method was used to fabricate 10 vol% silicon carbide particle (SiCp) reinforced 6061 Al matrix composites with high mechanical performances successfully. Here, we demonstrated with proof that proper solution treatment could not only enhance tensile strength of the composite: its ultimate tensile strength and yield strength increased from 230 to 128 MPa in the as-fabricated state to 275 and 212 MPa solutionized at 808 K for 6 h but also improve composite's tensile elongation significantly with an increment of 161.5% from 2.6% to 6.8%. Corresponding toughening mechanisms are mainly investigated from the perspective of both microstructure examination and total strain to failure calculation through a modified model. The theoretical predictions are in reasonably good agreement with the experimental data. This work may provide a practical way to alleviate the inverse strength-ductility relationship of particulate reinforced metal matrix composites and provide reference for the SF calculation of similar composites subjected to solution treatment.
资助项目	Basic Scientific Fund of Gansu Universities[G2014-07] ; Program for New Century Excellent Talents in University of China[NCET-10-0023] ; Program for Hongliu Outstanding Talents of Lanzhou University of Technology[2012-03]
WOS研究方向	Materials Science
语种	英语
出版者	CAMBRIDGE UNIV PRESS
WOS记录号	WOS:000446676400009
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32447]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Chen, Tijun
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xuezheng,Chen, Tijun. Toughening mechanisms of solution-treated SiCp/6061 aluminum matrix composites fabricated via powder thixoforming[J]. JOURNAL OF MATERIALS RESEARCH,2018,33(18):2728-2740.
APA	Zhang, Xuezheng,&Chen, Tijun.(2018).Toughening mechanisms of solution-treated SiCp/6061 aluminum matrix composites fabricated via powder thixoforming.JOURNAL OF MATERIALS RESEARCH,33(18),2728-2740.
MLA	Zhang, Xuezheng,et al."Toughening mechanisms of solution-treated SiCp/6061 aluminum matrix composites fabricated via powder thixoforming".JOURNAL OF MATERIALS RESEARCH 33.18(2018):2728-2740.