Effects of Al-Ti-C-Ce Master Alloy on Microstructure and Mechanical Properties of Hypoeutectic Al-7%Si Alloy

doi:10.1007/s40962-018-0266-8

CORC > 兰州理工大学 > 兰州理工大学

	Effects of Al-Ti-C-Ce Master Alloy on Microstructure and Mechanical Properties of Hypoeutectic Al-7%Si Alloy
	Ding, Wanwu 1; Zhao, Xiaoyan ; Zhao, Wenjun ; Guo, Tingbiao ; Tang, Xinchang ; Qiao, Jisen ; Xia, Tiandong
刊名	INTERNATIONAL JOURNAL OF METALCASTING
	2019-04
卷号	13 期号:2 页码:426-437
关键词	hypoeutectic Al-7%Si alloy Al-Ti-C-Ce master alloy microstructure mechanical properties
ISSN号	1939-5981
DOI	10.1007/s40962-018-0266-8
英文摘要	It is well known that the mechanical properties of hypoeutectic Al-7%Si alloys are influenced by the size, morphology, and distribution of primary -Al and eutectic Si crystals. In the present work, a novel Al-Ti-C-Ce master alloy was prepared by the pure molten aluminum thermal explosion reaction, and its effects on the microstructure and mechanical properties of hypoeutectic Al-7%Si alloy were investigated. The results show that the Al-Ti-C-Ce master alloy containing -Al, granular TiC, lump-like TiAl3, and block-like Ti2Al20Ce has excellent refining and modification properties for hypoeutectic Al-7%Si alloy. When 1.5wt.% Al-Ti-C-Ce master alloy is added, the coarse dendritic -Al in hypoeutectic Al-7%Si alloy is refined into equiaxed grains. The secondary dendritic arm spacing (SDAS) was also reduced, and the coarse needle-flake eutectic Si phase was transformed into a fibrous and granular phase. It was found that the ultimate tensile strength and elongation increased by 59% and 56%, respectively, due to the decrease in the SDAS of primary -Al dendrites and the modification of eutectic Si crystals. Moreover, the change of mechanical properties corresponds to the evolution of microstructure.
资助项目	National Natural Science Foundation of China[51661021][51665033] ; Natural Science Foundation of Gansu Province in China[1606RJZA161] ; Gansu key research and development program[18YF1GA061]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SPRINGER INTERNATIONAL PUBLISHING AG
WOS记录号	WOS:000463755600019
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31996]
专题	兰州理工大学材料科学与工程学院
通讯作者	Ding, Wanwu
作者单位	1.State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Ding, Wanwu,Zhao, Xiaoyan,Zhao, Wenjun,et al. Effects of Al-Ti-C-Ce Master Alloy on Microstructure and Mechanical Properties of Hypoeutectic Al-7%Si Alloy[J]. INTERNATIONAL JOURNAL OF METALCASTING,2019,13(2):426-437.
APA	Ding, Wanwu.,Zhao, Xiaoyan.,Zhao, Wenjun.,Guo, Tingbiao.,Tang, Xinchang.,...&Xia, Tiandong.(2019).Effects of Al-Ti-C-Ce Master Alloy on Microstructure and Mechanical Properties of Hypoeutectic Al-7%Si Alloy.INTERNATIONAL JOURNAL OF METALCASTING,13(2),426-437.
MLA	Ding, Wanwu,et al."Effects of Al-Ti-C-Ce Master Alloy on Microstructure and Mechanical Properties of Hypoeutectic Al-7%Si Alloy".INTERNATIONAL JOURNAL OF METALCASTING 13.2(2019):426-437.