Effects of Al-5Ti-0.62C-1.07La intermediate alloy on the microstructure and mechanical properties of A356 aluminum alloy

doi:10.1088/2053-1591/ab80ec

	Effects of Al-5Ti-0.62C-1.07La intermediate alloy on the microstructure and mechanical properties of A356 aluminum alloy
	Ding, Wanwu; Xu, Chen; Zhang, Haixia; Zhao, Wenjun
	2020-03
发表期刊	MATERIALS RESEARCH EXPRESS
卷号	7 期号:3
摘要	The physical characters that belong to hypo-eutectic Al-Si alloys are affected by certain important factors including the dimension, distribution together with structure of eutectic Si crystals together with primary alpha-Al. In this paper, A356-x Al-5Ti-0.62C-1.07La (x = 0, 4, 5, 6, 7 wt%) alloys are was prepared by mechanical stirring. The effects of Al-5Ti-0.62C-1.07La intermediate alloy on the microstructures and mechanical properties of A356 alloy are investigated. Results show that the primary alpha-Al was significantly refined by Al-5Ti-0.62C-1.07La intermediate alloy. The secondary dendrite arm space (SDAS) of unrefined alpha-Al is approximately 40 mu m. When the substance of Al-5Ti-0.62C-1.07La intermediate alloy is 6 wt%, SDAS declines to 10 mu m. In addition, the component part of eutectic Si turns from thick acicular/schistose to short rod-like together with a section of pellets. Adding 6 wt% Al-5Ti-0.62C-1.07La intermediate alloy, A356-T6 alloy obtained the best tensile function and hardness. The ultimate tensile strength (UTS), elongation (El) together with Vickers hardness (HV) are 183.5 MPa, 8.2% and 62.3, which is increased by 30.3%, 95.2% and 38.1%, respectively. Furthermore, the variation in mechanical properties change with the development of micro-structure.
关键词	A356 alloy Al-Ti-C-La intermediate alloy microstructure heat treatment mechanical properties
DOI	10.1088/2053-1591/ab80ec
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China[51661021] ; Key Research and Development Projects of Gansu Province[18YF1GA061] ; China Postdoctoral Science Foundation[2019M653896XB]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000522985200001
出版者	IOP PUBLISHING LTD
EI入藏号	20201708530674
EI主题词	Aluminum alloys
EI分类号	531.2 Metallography - 541.2 Aluminum Alloys - 547.2 Rare Earth Metals - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 933.1.1 Crystal Lattice - 951 Materials Science
来源库	WOS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/64190
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	Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
第一作者单位	材料科学与工程学院
通讯作者单位	材料科学与工程学院
第一作者的第一单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Ding, Wanwu,Xu, Chen,Zhang, Haixia,et al. Effects of Al-5Ti-0.62C-1.07La intermediate alloy on the microstructure and mechanical properties of A356 aluminum alloy[J]. MATERIALS RESEARCH EXPRESS,2020,7(3).
APA	Ding, Wanwu,Xu, Chen,Zhang, Haixia,&Zhao, Wenjun.(2020).Effects of Al-5Ti-0.62C-1.07La intermediate alloy on the microstructure and mechanical properties of A356 aluminum alloy.MATERIALS RESEARCH EXPRESS,7(3).
MLA	Ding, Wanwu,et al."Effects of Al-5Ti-0.62C-1.07La intermediate alloy on the microstructure and mechanical properties of A356 aluminum alloy".MATERIALS RESEARCH EXPRESS 7.3(2020).