Tribological performance of silicone oil based Al2O3 nano lubricant for an Mg alloy subjected to sliding at elevated temperatures

Wang，Yan1; Zhang，Liangchi2,3,4; Liu，Ang1; Wu，Chuhan1; Li，Wei1

2022-11-01

10.1016/j.triboint.2022.107779

TRIBOLOGY INTERNATIONAL   影响因子和分区

0301-679X

Lubricants are commonly used in manufacturing processes, such as rolling and drawing, to protect contact surfaces in a relative movement against friction and wear. Currently, there are few studies on fluid lubricants for the fabrication of large-scale Mg alloy components at high temperatures in the open air. This paper aims to design a type of silicone oil based AlO nano lubricant and investigate its effect on the tribological performance of Mg AZ31B sliding against 86CrMoV7 steel under elevated temperatures with the aid of the pin-on-disc experiments. It was found that the width and depth of the wear tracks at 250 °C are dramatically reduced when the concentration of the AlO nanoparticle additives reaches 0.50 wt% and above, and that there is a strong correlation between the wear rate and average friction coefficient. The investigation revealed that the lubrication mechanism for the contact pair using pure silicon oil at 100 °C is due to the formation of a Si-rich tribofilm, whereas the lubricant with AlO nanoparticles provides a more stable Al-rich anti-wear surface at higher temperatures in the range of 200–250 °C.

Lubricated wear Mg AZ31B Nano lubricant Tribofilm

EI

英语

通讯

20223212544677

Additives ; Alumina ; Aluminum alloys ; Aluminum oxide ; Chromium alloys ; Chromium steel ; Friction ; Lubricants ; Magnesium alloys ; Molybdenum steel ; Nanoparticles ; Silicon alloys ; Silicones ; Ternary alloys ; Tribology

Aluminum Alloys:541.2 ; Magnesium and Alloys:542.2 ; Chromium and Alloys:543.1 ; Steel:545.3 ; Alkaline Earth Metals:549.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Lubricants:607.1 ; Nanotechnology:761 ; Chemical Agents and Basic Industrial Chemicals:803 ; Inorganic Compounds:804.2 ; Organic Polymers:815.1.1 ; Classical Physics; Quantum Theory; Relativity:931 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Solid State Physics:933 ; Materials Science:951

ENGINEERING

2-s2.0-85135416086

Scopus

1.School of Mechanical and Manufacturing Engineering,University of New South Wales,2052,Australia
2.Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
3.SUSTech Institute for Manufacturing Innovation,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
4.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Wang，Yan,Zhang，Liangchi,Liu，Ang,et al. Tribological performance of silicone oil based Al2O3 nano lubricant for an Mg alloy subjected to sliding at elevated temperatures[J]. TRIBOLOGY INTERNATIONAL,2022,175.

Wang，Yan,Zhang，Liangchi,Liu，Ang,Wu，Chuhan,&Li，Wei.(2022).Tribological performance of silicone oil based Al2O3 nano lubricant for an Mg alloy subjected to sliding at elevated temperatures.TRIBOLOGY INTERNATIONAL,175.

Wang，Yan,et al."Tribological performance of silicone oil based Al2O3 nano lubricant for an Mg alloy subjected to sliding at elevated temperatures".TRIBOLOGY INTERNATIONAL 175(2022).