Effect of surface wetting on tribological behavior for laser textured steel using ionic liquid-based lubricants

Avik Samanta; Wuji Huang; Kyungjun Lee; Xin He; Chanaka Kumara; Jun Qu; Hongtao Ding

doi:10.1016/j.mfglet.2023.07.009

Effect of surface wetting on tribological behavior for laser textured steel using ionic liquid-based lubricants

Avik Samanta, Wuji Huang, Kyungjun Lee, Xin He, Chanaka Kumara, Jun Qu, Hongtao Ding

Surface Engineering and Tribology

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

Abstract

In this study, the effect of surface wettability on the tribological performance is evaluated through a ball-on-flat reciprocating wear test. The substrate material, M2 tool steel, is laser processed and then functionalized with fluorocarbon and nitrile chemistry to achieve distinct oleophobicity and oleophilicity, respectively, but with a similar nanoscale surface texture. The poly-alpha-olefin (PAO) base oil is used as the baseline lubricant, and ammonium- and phosphonium-based oil-miscible ionic liquids (ILs) are used as additives. The interaction between the nanoscale textured steel surface and ionic liquid-based oils is investigated. A set of reciprocating wear tests are performed to identify the wear and frictional mechanisms of the tribosystem consisting of the surface-engineered, flat M2 tool steel specimen and a standard, surface-polished steel ball. Results show that the oleophobic flat surface results in a lower friction, while the oleophilic surface modification leads to a better wear protection to the flat surface. Ammonium-based IL provides the highest friction reduction, while the phosphonium-based IL provide an improved wear protection. Click here and insert your abstract text.

Original language	English
Pages (from-to)	141-151
Number of pages	11
Journal	Manufacturing Letters
Volume	35
DOIs	https://doi.org/10.1016/j.mfglet.2023.07.009
State	Published - Aug 2023

Funding

The authors thank H.M. Luo from ORNL for synthesis of the ionic liquids, E. Conrad from Solvay for providing phosphonium cation feedstocks, C. Dubin from ExxonMobil for providing the PAO base oil. The authors gratefully acknowledge the financial support by the National Science Foundation under Grant Number CMMI-1762353 . Research was partially supported by Vehicle Technologies Office, Office of Energy Efficiency and Renewable Energy, US Department of Energy (DOE). The authors thank H.M. Luo from ORNL for synthesis of the ionic liquids, E. Conrad from Solvay for providing phosphonium cation feedstocks, C. Dubin from ExxonMobil for providing the PAO base oil. The authors gratefully acknowledge the financial support by the National Science Foundation under Grant Number CMMI-1762353. Research was partially supported by Vehicle Technologies Office, Office of Energy Efficiency and Renewable Energy, US Department of Energy (DOE).

Keywords

Ionic Liquid
Laser Texturing
Surface Wetting
Tribological Behavior
Wear

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10.1016/j.mfglet.2023.07.009

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title = "Effect of surface wetting on tribological behavior for laser textured steel using ionic liquid-based lubricants",

abstract = "In this study, the effect of surface wettability on the tribological performance is evaluated through a ball-on-flat reciprocating wear test. The substrate material, M2 tool steel, is laser processed and then functionalized with fluorocarbon and nitrile chemistry to achieve distinct oleophobicity and oleophilicity, respectively, but with a similar nanoscale surface texture. The poly-alpha-olefin (PAO) base oil is used as the baseline lubricant, and ammonium- and phosphonium-based oil-miscible ionic liquids (ILs) are used as additives. The interaction between the nanoscale textured steel surface and ionic liquid-based oils is investigated. A set of reciprocating wear tests are performed to identify the wear and frictional mechanisms of the tribosystem consisting of the surface-engineered, flat M2 tool steel specimen and a standard, surface-polished steel ball. Results show that the oleophobic flat surface results in a lower friction, while the oleophilic surface modification leads to a better wear protection to the flat surface. Ammonium-based IL provides the highest friction reduction, while the phosphonium-based IL provide an improved wear protection. Click here and insert your abstract text.",

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author = "Avik Samanta and Wuji Huang and Kyungjun Lee and Xin He and Chanaka Kumara and Jun Qu and Hongtao Ding",

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AU - Qu, Jun

AU - Ding, Hongtao

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N2 - In this study, the effect of surface wettability on the tribological performance is evaluated through a ball-on-flat reciprocating wear test. The substrate material, M2 tool steel, is laser processed and then functionalized with fluorocarbon and nitrile chemistry to achieve distinct oleophobicity and oleophilicity, respectively, but with a similar nanoscale surface texture. The poly-alpha-olefin (PAO) base oil is used as the baseline lubricant, and ammonium- and phosphonium-based oil-miscible ionic liquids (ILs) are used as additives. The interaction between the nanoscale textured steel surface and ionic liquid-based oils is investigated. A set of reciprocating wear tests are performed to identify the wear and frictional mechanisms of the tribosystem consisting of the surface-engineered, flat M2 tool steel specimen and a standard, surface-polished steel ball. Results show that the oleophobic flat surface results in a lower friction, while the oleophilic surface modification leads to a better wear protection to the flat surface. Ammonium-based IL provides the highest friction reduction, while the phosphonium-based IL provide an improved wear protection. Click here and insert your abstract text.

AB - In this study, the effect of surface wettability on the tribological performance is evaluated through a ball-on-flat reciprocating wear test. The substrate material, M2 tool steel, is laser processed and then functionalized with fluorocarbon and nitrile chemistry to achieve distinct oleophobicity and oleophilicity, respectively, but with a similar nanoscale surface texture. The poly-alpha-olefin (PAO) base oil is used as the baseline lubricant, and ammonium- and phosphonium-based oil-miscible ionic liquids (ILs) are used as additives. The interaction between the nanoscale textured steel surface and ionic liquid-based oils is investigated. A set of reciprocating wear tests are performed to identify the wear and frictional mechanisms of the tribosystem consisting of the surface-engineered, flat M2 tool steel specimen and a standard, surface-polished steel ball. Results show that the oleophobic flat surface results in a lower friction, while the oleophilic surface modification leads to a better wear protection to the flat surface. Ammonium-based IL provides the highest friction reduction, while the phosphonium-based IL provide an improved wear protection. Click here and insert your abstract text.

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ER -

Effect of surface wetting on tribological behavior for laser textured steel using ionic liquid-based lubricants

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