Tribological Behavior of AlCoCrFeNi(Ti0.5) High Entropy Alloys under Oil and MACs Lubrication

Yuan Yu; Jun Wang; Jinshan Li; Jun Yang; Hongchao Kou; Weimin Liu

doi:10.1016/j.jmst.2016.02.005

Tribological Behavior of AlCoCrFeNi(Ti_0.5) High Entropy Alloys under Oil and MACs Lubrication

Yuan Yu
, Jun Wang
, Jinshan Li
, Jun Yang
, Hongchao Kou
, Weimin Liu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian
CAS - Lanzhou Institute of Chemical Physics

Research output: Contribution to journal › Article › peer-review

89 Scopus citations

Abstract

The tribological properties of AlCoCrFeNi and AlCoCrFeNiTi_0.5 high entropy alloys under gear oil and multiply alkylated cyclopentanes (MACs) lubrication condition have been studied. The equiaxed crystal structure of AlCoCrFeNi alloy is obtained after heat-treatment. The AlCoCrFeNiTi_0.5 alloy keeps dendrite structure. Under the gear oil with good lubrication action, AlCoCrFeNiTi_0.5 alloy preserves better tribological properties than AlCoCrFeNi alloy. The delamination and crack behaviors tend to occur in the grain boundary of AlCoCrFeNi alloy and along the interdendrite region of AlCoCrFeNiTi_0.5 alloy. Under the MACs with relatively poor lubrication action, the applied load slightly influences the wear behavior of AlCoCrFeNi alloy, but seriously impacts the wear mechanism of AlCoCrFeNiTi_0.5 alloy. Compared with AlCoCrFeNi alloy, AlCoCrFeNiTi_0.5 alloy keeps better wear-resistance at low applied load of 100 N, but preserves less wear-resistance at high applied load of 200 N.

Original language	English
Pages (from-to)	470-476
Number of pages	7
Journal	Journal of Materials Science and Technology
Volume	32
Issue number	5
DOIs	https://doi.org/10.1016/j.jmst.2016.02.005
State	Published - 1 May 2016

Keywords

Delamination
High entropy alloy
Microstructure
Oil lubrication
Tribological properties

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@article{218cb8f82e35450cb17eca6be16b71f2,

title = "Tribological Behavior of AlCoCrFeNi(Ti0.5) High Entropy Alloys under Oil and MACs Lubrication",

abstract = "The tribological properties of AlCoCrFeNi and AlCoCrFeNiTi0.5 high entropy alloys under gear oil and multiply alkylated cyclopentanes (MACs) lubrication condition have been studied. The equiaxed crystal structure of AlCoCrFeNi alloy is obtained after heat-treatment. The AlCoCrFeNiTi0.5 alloy keeps dendrite structure. Under the gear oil with good lubrication action, AlCoCrFeNiTi0.5 alloy preserves better tribological properties than AlCoCrFeNi alloy. The delamination and crack behaviors tend to occur in the grain boundary of AlCoCrFeNi alloy and along the interdendrite region of AlCoCrFeNiTi0.5 alloy. Under the MACs with relatively poor lubrication action, the applied load slightly influences the wear behavior of AlCoCrFeNi alloy, but seriously impacts the wear mechanism of AlCoCrFeNiTi0.5 alloy. Compared with AlCoCrFeNi alloy, AlCoCrFeNiTi0.5 alloy keeps better wear-resistance at low applied load of 100 N, but preserves less wear-resistance at high applied load of 200 N.",

keywords = "Delamination, High entropy alloy, Microstructure, Oil lubrication, Tribological properties",

author = "Yuan Yu and Jun Wang and Jinshan Li and Jun Yang and Hongchao Kou and Weimin Liu",

note = "Publisher Copyright: {\textcopyright} 2016.",

year = "2016",

month = may,

day = "1",

doi = "10.1016/j.jmst.2016.02.005",

language = "英语",

volume = "32",

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T1 - Tribological Behavior of AlCoCrFeNi(Ti0.5) High Entropy Alloys under Oil and MACs Lubrication

AU - Yu, Yuan

AU - Wang, Jun

AU - Li, Jinshan

AU - Yang, Jun

AU - Kou, Hongchao

AU - Liu, Weimin

PY - 2016/5/1

Y1 - 2016/5/1

N2 - The tribological properties of AlCoCrFeNi and AlCoCrFeNiTi0.5 high entropy alloys under gear oil and multiply alkylated cyclopentanes (MACs) lubrication condition have been studied. The equiaxed crystal structure of AlCoCrFeNi alloy is obtained after heat-treatment. The AlCoCrFeNiTi0.5 alloy keeps dendrite structure. Under the gear oil with good lubrication action, AlCoCrFeNiTi0.5 alloy preserves better tribological properties than AlCoCrFeNi alloy. The delamination and crack behaviors tend to occur in the grain boundary of AlCoCrFeNi alloy and along the interdendrite region of AlCoCrFeNiTi0.5 alloy. Under the MACs with relatively poor lubrication action, the applied load slightly influences the wear behavior of AlCoCrFeNi alloy, but seriously impacts the wear mechanism of AlCoCrFeNiTi0.5 alloy. Compared with AlCoCrFeNi alloy, AlCoCrFeNiTi0.5 alloy keeps better wear-resistance at low applied load of 100 N, but preserves less wear-resistance at high applied load of 200 N.

AB - The tribological properties of AlCoCrFeNi and AlCoCrFeNiTi0.5 high entropy alloys under gear oil and multiply alkylated cyclopentanes (MACs) lubrication condition have been studied. The equiaxed crystal structure of AlCoCrFeNi alloy is obtained after heat-treatment. The AlCoCrFeNiTi0.5 alloy keeps dendrite structure. Under the gear oil with good lubrication action, AlCoCrFeNiTi0.5 alloy preserves better tribological properties than AlCoCrFeNi alloy. The delamination and crack behaviors tend to occur in the grain boundary of AlCoCrFeNi alloy and along the interdendrite region of AlCoCrFeNiTi0.5 alloy. Under the MACs with relatively poor lubrication action, the applied load slightly influences the wear behavior of AlCoCrFeNi alloy, but seriously impacts the wear mechanism of AlCoCrFeNiTi0.5 alloy. Compared with AlCoCrFeNi alloy, AlCoCrFeNiTi0.5 alloy keeps better wear-resistance at low applied load of 100 N, but preserves less wear-resistance at high applied load of 200 N.

KW - Delamination

KW - High entropy alloy

KW - Microstructure

KW - Oil lubrication

KW - Tribological properties

UR - https://www.scopus.com/pages/publications/84977943216

U2 - 10.1016/j.jmst.2016.02.005

DO - 10.1016/j.jmst.2016.02.005

M3 - 文章

AN - SCOPUS:84977943216

SN - 1005-0302

VL - 32

SP - 470

EP - 476

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 5

ER -

Tribological Behavior of AlCoCrFeNi(Ti_0.5) High Entropy Alloys under Oil and MACs Lubrication

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