Tribological performance for an Mg alloy subjected to sliding at elevated temperatures: A comparison between Al2O3 and MoS2 nano additives in silicone oil-based lubricant

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

2023-10-01

10.1016/j.triboint.2023.108856

TRIBOLOGY INTERNATIONAL   影响因子和分区

0301-679X

1879-2464

Magnesium (Mg) and its alloys are crucial for energy-efficient vehicles due to their strong and lightweight properties, necessitating high-temperature fabrication and lubrication to reduce oxidation, friction, and wear. This paper investigated the tribological performance of lubricating oil using different particles to a Mg alloy subjected to contact sliding in an open system at high temperatures up to 250 degrees C. The overall experimental results showed improved tribological performances by using the two types of nanoparticles / nanoparticleclusters (concentration & GE; 0.5 wt%) compared with the base silicone oil. The mechanisms by which the two types of nano lubricants improved the tribological performance are different. Al2O3 particles provided a more stable Al-rich anti-wear surface at higher temperatures in the range of 200-250 degrees C, while a tribo-chemical reaction film was formed with MoS2 additives, generating MoO3 and MgSO4. It is generally concluded that Al2O3 has more positive effect in terms of reduced coefficient of friction and wear rate as comparison to MoS2.

Mg AZ31B Nano additives Lubricated wear Tribofilm

SCI ; EI

英语

通讯

Chinese Guangdong Specific Discipline Project[2020ZDZX2006] ; Shenzhen Key Laboratory of Cross-Scale Manufacturing Mechanics Project[ZDSYS20200810171201007] ; Baosteel Australia Research and Development Centre (BAJC)[BA18002] ; Chinese Guangdong Specific Discipline Project[2020ZDZX2006] ; Shenzhen Key Laboratory of Cross- Scale Manufacturing Mechanics Project[ZDSYS20200810171201007]

Engineering

Engineering, Mechanical

WOS:001059448900001

ELSEVIER SCI LTD

20233614695363

Additives ; Alumina ; Energy efficiency ; Friction ; Layered semiconductors ; Magnesium alloys ; Magnesium compounds ; Molybdenum oxide ; Silicones ; Tribology ; Wear of materials

Energy Conservation:525.2 ; Magnesium and Alloys:542.2 ; Alkaline Earth Metals:549.2 ; Semiconducting Materials:712.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Organic Polymers:815.1.1 ; Classical Physics; Quantum Theory; Relativity:931 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

ENGINEERING

Web of Science

1.Univ New South Wales, Sch Mech & Mfg Engn, Sydney, NSW 2052, Australia
2.Southern Univ Sci & Technol, Shenzhen Key Lab Cross Scale Mfg Mech, Shenzhen 518055, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, SUSTech Inst Mfg Innovat, Shenzhen 518055, Guangdong, Peoples R China
4.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Guangdong, Peoples R China

Wang, Yan,Zhang, Liangchi,Liu, Ang,et al. Tribological performance for an Mg alloy subjected to sliding at elevated temperatures: A comparison between Al2O3 and MoS2 nano additives in silicone oil-based lubricant[J]. TRIBOLOGY INTERNATIONAL,2023,188.

Wang, Yan,Zhang, Liangchi,Liu, Ang,&Wu, Chuhan.(2023).Tribological performance for an Mg alloy subjected to sliding at elevated temperatures: A comparison between Al2O3 and MoS2 nano additives in silicone oil-based lubricant.TRIBOLOGY INTERNATIONAL,188.

Wang, Yan,et al."Tribological performance for an Mg alloy subjected to sliding at elevated temperatures: A comparison between Al2O3 and MoS2 nano additives in silicone oil-based lubricant".TRIBOLOGY INTERNATIONAL 188(2023).