Mechanical Properties and Microstructural Evolution of Yb-Modified Al-20%Si Alloy

doi:10.1007/s11665-018-3456-x

	Mechanical Properties and Microstructural Evolution of Yb-Modified Al-20%Si Alloy
	Li, Qinglin 1,2; Li, Jinbao 1,2; Li, Binqiang 1,2; Zhu, Yuqian 1,2; Liu, Dexue 1,2; Lan, Yefeng 1,2; Wang, Shu 1,2
刊名	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
	2018-07
卷号	27 期号:7 页码:3498-3507
关键词	eutectic Si hypereutectic Al-20% Si alloy mechanical properties primary Si rare earth Yb
ISSN号	1059-9495
DOI	10.1007/s11665-018-3456-x
英文摘要	In the study, the mechanical properties and microstructural evolution of hypereutectic Al-20%Si-xYb alloys (x = 0, 0.1, 0.3, 0.5 and 0.7 wt.%) were studied. The as-prepared samples were characterized by scanning electron microscopy, optical microscope, x-ray diffraction (XRD) and electron probe microanalysis. The characterization results showed with the addition amount of Yb increasing to 0.5%, the eutectic Si structure was gradually modified from coarse needle-like/platelet-like structure into fine coral-like fibrous structure and the primary Si phases were gradually converted from coarse platelet-like/star-like/polygonal shape into fine blocky shape. In particular, according to the results of WDS and XRD analyses, the Yb-rich intermetallic phase in the Al-20%Si alloy is Al3Yb. Tensile test was carried out to study the mechanical properties of Al-20%Si-x%Yb alloys, and results showed that the elongation and ultimate tensile strength increased by 73.6% and 64.5%, respectively.
资助项目	Gansu Province Natural Science Foundation[1506RJZA107] ; National Science Foundation of China[51561021]
WOS研究方向	Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000439346300030
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32571]
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	Li, Qinglin
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China 2.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	Li, Qinglin,Li, Jinbao,Li, Binqiang,et al. Mechanical Properties and Microstructural Evolution of Yb-Modified Al-20%Si Alloy[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2018,27(7):3498-3507.
APA	Li, Qinglin.,Li, Jinbao.,Li, Binqiang.,Zhu, Yuqian.,Liu, Dexue.,...&Wang, Shu.(2018).Mechanical Properties and Microstructural Evolution of Yb-Modified Al-20%Si Alloy.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,27(7),3498-3507.
MLA	Li, Qinglin,et al."Mechanical Properties and Microstructural Evolution of Yb-Modified Al-20%Si Alloy".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 27.7(2018):3498-3507.