High strength SiCp/Al-2Cu-1.2Mg-0.6Si composite with weak natural aging hardening

doi:10.1016/j.coco.2021.100742

IMR OpenIR

	High strength SiCp/Al-2Cu-1.2Mg-0.6Si composite with weak natural aging hardening
	Zhu, S. Z.1,2; Wang, D.1; Zan, Y. N.1,2; Xiao, B. L.1; Ma, Z. Y.1
通讯作者	Wang, D.(dongwang@imr.ac.cn) ; Xiao, B. L.(blxiao@imr.ac.cn)
	2021-06-01
发表期刊	COMPOSITES COMMUNICATIONS
ISSN	2452-2139
卷号	25 页码:6
摘要	The typical SiCp/Al-Cu-Mg composites have strong natural aging hardening trend, thus decreasing performance for cold working after quenching. The study developed a SiCp/Al-2Cu-1.2Mg-0.6Si (in wt.%) composite with low natural aging strength and high natural aging ductility. Compared to the typical SiCp/2009Al (Al-4Cu-1.2 Mg, in wt%) composite, the SiCp/Al-2Cu-1.2Mg-0.6Si composite had a 73 MPa decrement in yield strength and an increment in uniform elongation from 8.5% to 10.5% after one-week natural aging due to much fewer Cu, whereas the composite exhibited a 33 MPa increment in yield strength after artificial aging. Due to modification of precipitation by Si, finer and equal quantity (volume fraction) of intragranular precipitates formed after artificial aging in the SiCp/Al-2Cu-1.2Mg-0.6Si composite in comparison with the SiCp/2009Al composite. Therefore, higher yield strength after artificial aging could be achieved although Cu content was much lower. The SiCp/Al-2Cu-1.2Mg-0.6Si composite exhibited great potential for application, thereby enriching the classification of SiCp/Al composites.
关键词	Aluminum alloys Particulate reinforced composites Natural aging Artificial aging
资助者	National Key R&D Program of China ; National Natural Science Foundation of China
DOI	10.1016/j.coco.2021.100742
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2017YFB0703104] ; National Natural Science Foundation of China[51671191]
WOS研究方向	Materials Science
WOS类目	Materials Science, Composites
WOS记录号	WOS:000663431800002
出版者	ELSEVIER SCI LTD
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/160508
专题	中国科学院金属研究所
通讯作者	Wang, D.; Xiao, B. L.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhu, S. Z.,Wang, D.,Zan, Y. N.,et al. High strength SiCp/Al-2Cu-1.2Mg-0.6Si composite with weak natural aging hardening[J]. COMPOSITES COMMUNICATIONS,2021,25:6.
APA	Zhu, S. Z.,Wang, D.,Zan, Y. N.,Xiao, B. L.,&Ma, Z. Y..(2021).High strength SiCp/Al-2Cu-1.2Mg-0.6Si composite with weak natural aging hardening.COMPOSITES COMMUNICATIONS,25,6.
MLA	Zhu, S. Z.,et al."High strength SiCp/Al-2Cu-1.2Mg-0.6Si composite with weak natural aging hardening".COMPOSITES COMMUNICATIONS 25(2021):6.