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, Wanwu1,2 ; Zhao, Xiaoyan 1,2; Chen, Taili 1,2; Zhang, Haixia1,2 ; Liu, Xiaoxiong 1,2; Cheng, Yan 1,2; Lei, Dongkai 1,2
	2020-07-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	830
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.
关键词	6063 aluminum alloy Al-Ti-B master Alloy Rare-earth Y Refining effect Mechanical properties Mechanism of action
DOI	10.1016/j.jallcom.2020.154685
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000525824700054
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：53[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/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.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China 2.Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, 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,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).