The Influence of AlFeNiCrCoTi High-Entropy Alloy on Microstructure, Mechanical Properties and Tribological Behaviors of Aluminum Matrix Composites

doi:10.1007/s40962-020-00462-x

	The Influence of AlFeNiCrCoTi High-Entropy Alloy on Microstructure, Mechanical Properties and Tribological Behaviors of Aluminum Matrix Composites
	Li, Qinglin1 ; Bao, Xuepeng 1; Zhao, Shang 1; Zhu, Yuqian 1; Lan, Yefeng1 ; Feng, Xianyu 2; Zhang, Qiang 2
	2021-01
发表期刊	INTERNATIONAL JOURNAL OF METALCASTING
ISSN	1939-5981
卷号	15 期号:1 页码:281-291
摘要	The microstructure, mechanical properties and tribological behaviors of aluminum matrix composites with different contents of AlFeNiCrCoTi high-entropy alloy (HEA) (4.0, 5.0 and 6.0 wt%) were investigated. The as-cast specimens were analyzed by the scanning electron microscopy and electron probe micro-analysis. The results indicated that flake-like and blocky intermetallic compounds precipitated distributing in alpha-Al matrix in the solidification when the concentration of HEA was more than 4.0 wt% in pure aluminum. Moreover, as the content of HEA increased, the number of the intermetallic compounds increased. Meanwhile, a new phase formed and it distributed inter-dendrite of alpha-Al in the solidification, which morphology was rod-shaped and the diameter was less than 200 nm. The area fraction of the nano-phases increased, and the diameter decreased with increasing the addition of HEA in pure aluminum. The tensile test illustrated that the ultimate tensile strength increased firstly and then decreased with the increase of HEA content. When the addition concentration of HEA was 4.0 wt%, the ultimate tensile strength enhanced from 58 to 142 MPa. When 5.0 wt% HEA was added into pure aluminum, the ultimate tensile strength further improved from 142 to 170 MPa. In addition, the elongation decreased from 40.6 to 22.7%. However, when 6.0 wt% HEA was added into pure aluminum, the ultimate tensile strength and elongation reduced to 157 MPa and 18.2%, respectively. The tribological behaviors of aluminum matrix composites were investigated under the condition of seawater. The friction coefficient and wear rate of aluminum matrix composites significantly decreased with the increase of HEA content. Moreover, when the addition level was up to 6.0 wt%, the friction coefficient of aluminum matrix composites decreased by 71.1% from 0.83 to 0.24, and wear rate decreased by 90.8% from 2.48 x 10(-9) m(3) N-1 m(-1) to 2.27 x 10(-10) m(3) N-1 m(-1).
关键词	aluminum matrix composites high-entropy alloy microstructure mechanical properties tribological behaviors
DOI	10.1007/s40962-020-00462-x
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China[51561021] ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology[SKLAB02019007] ; National Innovation Training Program of College Students[DC2019165][DC2019161]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000528416700001
出版者	SPRINGER INTERNATIONAL PUBLISHING AG
EI入藏号	20201808609699
EI主题词	Tensile strength
EI分类号	531.1 Metallurgy - 531.2 Metallography - 541.1 Aluminum - 541.2 Aluminum Alloys - 542.3 Titanium and Alloys - 543.1 Chromium and Alloys - 545.1 Iron - 545.2 Iron Alloys - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 641.1 Thermodynamics - 802.3 Chemical Operations - 931 Classical Physics ; Quantum Theory ; Relativity - 951 Materials Science
来源库	WOS
引用统计	被引频次：17[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/64304
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
通讯作者	Li, Qinglin
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Li, Qinglin,Bao, Xuepeng,Zhao, Shang,et al. The Influence of AlFeNiCrCoTi High-Entropy Alloy on Microstructure, Mechanical Properties and Tribological Behaviors of Aluminum Matrix Composites[J]. INTERNATIONAL JOURNAL OF METALCASTING,2021,15(1):281-291.
APA	Li, Qinglin.,Bao, Xuepeng.,Zhao, Shang.,Zhu, Yuqian.,Lan, Yefeng.,...&Zhang, Qiang.(2021).The Influence of AlFeNiCrCoTi High-Entropy Alloy on Microstructure, Mechanical Properties and Tribological Behaviors of Aluminum Matrix Composites.INTERNATIONAL JOURNAL OF METALCASTING,15(1),281-291.
MLA	Li, Qinglin,et al."The Influence of AlFeNiCrCoTi High-Entropy Alloy on Microstructure, Mechanical Properties and Tribological Behaviors of Aluminum Matrix Composites".INTERNATIONAL JOURNAL OF METALCASTING 15.1(2021):281-291.