Nano-coupled heterostructure induced excellent mechanical and tribological properties in AlCoCrFeNi high entropy alloy

	Nano-coupled heterostructure induced excellent mechanical and tribological properties in AlCoCrFeNi high entropy alloy
Department	固体润滑国家重点实验室（LSL）
	Geng YS(耿钰山)1,2; Tan H(谈辉)1 ; Wang L(王龙)3; Anh Kiet Tieu 3; Chen J(陈娇)1 ; Cheng J(程军)1,2 ; Yang J(杨军)1,2
The second department	高温摩擦学组
	2020-09-15
Source Publication	Tribology International
Volume	154 Issue:106662 Pages:106662
Abstract	High strength, ductility and wear-resistance alloys are required for engineering applications. This work reports a good combination of mechanical and tribological properties in (NiAl)_x(FeCr)_yCo_(x+y)/2 high-entropy alloys (HEAs) via adjusting A2/B2 nano-coupled heterostructure. The A2/B2 heterostructure switches from weave to network structure by increasing x:y ratio from 1:1.3 to 1:1, and eventually forms an island structure when x:y ratio is 1.3:1, while accordingly FCC phase becomes discontinuity. The island-like A2/B2 heterostructure provides (NiAl)_1.3(FeCr)Co_1.15 HEA a good compressive yield strength of 1.7GPa and ductility of 23.4%, which are superior to or comparable with other AlCoCrFeNi HEAs. Additionally, (NiAl)_1.3(FeCr)Co_1.15 HEA has promising wear-resistance from room temperature to 800 °C, ascribing to its excellent strength and the protective tribo-layer at high temperatures.
MOST Discipline Catalogue	工学
Indexed By	SCI
If	4.271
compositor	第一作者单位
Citation statistics	Cited Times:41[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.licp.cn/handle/362003/26858
Collection	固体润滑国家重点实验室（LSL）
Corresponding Author	Cheng J(程军); Yang J(杨军)
Affiliation	1.中国科学院兰州化学物理研究所 2.中国科学院大学 3.University of Wollongong
Corresponding Author Affilication	Lanzhou Institute of Chemical Physics，Chinese Academy of Sciences
Recommended Citation GB/T 7714	Geng YS,Tan H,Wang L,et al. Nano-coupled heterostructure induced excellent mechanical and tribological properties in AlCoCrFeNi high entropy alloy[J]. Tribology International,2020,154(106662):106662.
APA	Geng YS.,Tan H.,Wang L.,Anh Kiet Tieu.,Chen J.,...&Yang J.(2020).Nano-coupled heterostructure induced excellent mechanical and tribological properties in AlCoCrFeNi high entropy alloy.Tribology International,154(106662),106662.
MLA	Geng YS,et al."Nano-coupled heterostructure induced excellent mechanical and tribological properties in AlCoCrFeNi high entropy alloy".Tribology International 154.106662(2020):106662.

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