Effect of Al-5Ti-0.62C-0.2Ce Master Alloy on the Microstructure and Tensile Properties of Commercial Pure Al and Hypoeutectic Al-8Si Alloy

doi:10.3390/met7060227

	Effect of Al-5Ti-0.62C-0.2Ce Master Alloy on the Microstructure and Tensile Properties of Commercial Pure Al and Hypoeutectic Al-8Si Alloy
	Ding, Wanwu 1,2; Xu, Chen 1,2; Zhang, Haixia 1,2; Zhao, Wenjun 1,2; Guo, Tingbiao 1,2; Xia, Tiandong 1,2
刊名	METALS
	2017-06
卷号	7 期号:6
关键词	Al-Ti-C-Ce master alloy preparation microstructure mechanical properties commercial pure Al hypoeutectic Al-8Si alloy
ISSN号	2075-4701
DOI	10.3390/met7060227
英文摘要	Al-5Ti-0.62C-0.2Ce master alloy was synthesized by a method of thermal explosion reaction in pure molten aluminum and used to modify commercial pure Al and hypoeutectic Al-8Si alloy. The microstructure and tensile properties of commercial pure Al and hypoeutectic Al-8Si alloy with different additions of Al-5Ti-0.62C-0.2Ce master alloy were investigated. The results show that the Al-5Ti-0.62C-0.2Ce alloy was composed of alpha-Al, granular TiC, lump-like TiAl3 and block-like Ti2Al20Ce. Al-5Ti-0.62C-0.2Ce master alloy (0.3 wt %, 5 min) can significantly refine macro grains of commercial pure Al into tiny equiaxed grains. The Al-5Ti-0.62C-0.2Ce master alloy (0.3 wt %, 30 min) still has a good refinement effect. The tensile strength and elongation of commercial pure Al modified by the Al-5Ti-0.62C-0.2Ce master alloy (0.3 wt %, 5 min) increased by roughly 19.26% and 61.83%, respectively. Al-5Ti-0.62C-0.2Ce master alloy (1.5 wt %, 10 min) can significantly refine both alpha-Al grains and eutectic Si of hypoeutectic Al-8Si alloy. The dendritic alpha-Al grains were significantly refined to tiny equiaxed grains. The morphology of the eutectic Si crystals was significantly refined from coarse needle-shape or lath-shape to short rod-like or grain-like eutectic Si. The tensile strength and elongation of hypoeutectic Al-8Si alloy modified by the Al-5Ti-0.62C-0.2Ce master alloy (1.5 wt %, 10 min) increased by roughly 20.53% and 50%, respectively. The change in mechanical properties corresponds to evolution of the microstructure.
资助项目	National Natural Science Foundation of China[51661021] ; Natural Science Foundation of Gansu Province in China[1606RJZA161]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000404056600044
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33250]
专题	材料科学与工程学院土木工程学院
通讯作者	Ding, Wanwu
作者单位	1.State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Ding, Wanwu,Xu, Chen,Zhang, Haixia,et al. Effect of Al-5Ti-0.62C-0.2Ce Master Alloy on the Microstructure and Tensile Properties of Commercial Pure Al and Hypoeutectic Al-8Si Alloy[J]. METALS,2017,7(6).
APA	Ding, Wanwu,Xu, Chen,Zhang, Haixia,Zhao, Wenjun,Guo, Tingbiao,&Xia, Tiandong.(2017).Effect of Al-5Ti-0.62C-0.2Ce Master Alloy on the Microstructure and Tensile Properties of Commercial Pure Al and Hypoeutectic Al-8Si Alloy.METALS,7(6).
MLA	Ding, Wanwu,et al."Effect of Al-5Ti-0.62C-0.2Ce Master Alloy on the Microstructure and Tensile Properties of Commercial Pure Al and Hypoeutectic Al-8Si Alloy".METALS 7.6(2017).