Effect of rare earth Y and Al-Ti-B master alloy on the microstructure and mechanical properties of 6063 aluminum alloy

doi:10.1016/j.jallcom.2020.154685

	Effect of rare earth Y and Al-Ti-B master alloy on the microstructure and mechanical properties of 6063 aluminum alloy
	Ding, Wanwu 1,2; Zhao, Xiaoyan 1,2; Chen, Taili 1,2; Zhang, Haixia 1,2; Liu, Xiaoxiong 1,2; Cheng, Yan 1,2; Lei, Dongkai 1,2
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2020-07-25
卷号	830
关键词	6063 aluminum alloy Al-Ti-B master Alloy Rare-earth Y Refining effect Mechanical properties Mechanism of action
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2020.154685
英文摘要	The morphology, size, and distribution of grains and secondary phases in 6063 aluminum alloy significantly influence the comprehensive mechanical properties of alloys. In this study, the rare-earth Y and Al Ti B master alloys were added to 6063 aluminum alloy, which is used to compare grain-refining effects, investigate the manner of existence of rare-earth 11, determine the influence and mechanism on the secondary phase, and analyze the influence of rare-earth Y on hardness, tensile property, and fracture morphology. Results revealed that adding the rare-earth Y combined with Al Ti B master alloy decreased the grain sizes of 6063 aluminum alloy. Rare earth Y is mainly distributed around TiB2 particles in the form of AITiY particles, and part of it exists in ci-Al grains in the form of AI3Y. Moreover, adding rare-earth Y decreased the Mg2Si size, contributed to turn 13-AIFeSi phase into ci-AlFeSi phase, formed various complex compounds (e.g., AlSiY, AIFeSi, and AlFeSiYMg), and reduced the impurity of Fe-rich phase at the grain boundary. Furthermore, the rare-earth Y combined with Al-Ti-B master alloy added to 6063 aluminum alloy can improve the tensile strength and elongation by 5% and 75% respectively. However, the value of hardness did not significantly change. Meanwhile, the rough and irregular dimples that formed in the fracture morphology became small dimples, and the form of fracture was ductile regardless of rare-earth Y or rare-earth Y combined with Al Ti B master alloy added to 6063 aluminum alloy. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[51661021] ; Gansu Key Research and Development Program[18YF1GA061] ; China Postdoctoral Science Foundation[2019M653896XB] ; National Natural Science Foundation of Gansu[1606RJZA16]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000525824700054
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/64153]
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.Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Ding, Wanwu,Zhao, Xiaoyan,Chen, Taili,et al. Effect of rare earth Y and Al-Ti-B master alloy on the microstructure and mechanical properties of 6063 aluminum alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,830.
APA	Ding, Wanwu.,Zhao, Xiaoyan.,Chen, Taili.,Zhang, Haixia.,Liu, Xiaoxiong.,...&Lei, Dongkai.(2020).Effect of rare earth Y and Al-Ti-B master alloy on the microstructure and mechanical properties of 6063 aluminum alloy.JOURNAL OF ALLOYS AND COMPOUNDS,830.
MLA	Ding, Wanwu,et al."Effect of rare earth Y and Al-Ti-B master alloy on the microstructure and mechanical properties of 6063 aluminum alloy".JOURNAL OF ALLOYS AND COMPOUNDS 830(2020).