Nanowear Mechanisms of Mg Alloyed with Al and Y at Elevated Temperatures

Aditya Gokhale; Trapesh Meena; Soo Yeol Lee; E. Wen Huang; Nitya N. Gosvami; Sujeet K. Sinha; Jayant Jain

doi:10.1007/s11249-020-01288-8

Nanowear Mechanisms of Mg Alloyed with Al and Y at Elevated Temperatures

Aditya Gokhale, Trapesh Meena, Soo Yeol Lee, E. Wen Huang, Nitya N. Gosvami, Sujeet K. Sinha, Jayant Jain^*

^*Corresponding author for this work

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

13 Scopus citations

Abstract

We examine the role of important alloying elements (Al, Y), on friction and wear mechanisms of Mg as a function of temperature. Friction and wear tests of Mg–5%Al and Mg–5%Y alloys performed at room temperature, 100 °C and 150 °C reveal that addition of Al and Y significantly reduces the coefficient of friction. However, despite higher hardness of Mg–5%Y alloy, its wear rate was found to be higher than Mg–5%Al alloy at elevated temperatures. We show that this behaviour, observed for Mg–5%Y alloy at elevated temperature, can be attributed to its higher surface energy than Mg–5%Al and pure Mg, leading to enhanced adhesive wear, which is detrimental to tribological applications.

Original language	English
Article number	46
Journal	Tribology Letters
Volume	68
Issue number	1
DOIs	https://doi.org/10.1007/s11249-020-01288-8
State	Published - 3 Mar 2020

Keywords

Adhesion
Elevated temperature
Mg alloy
Scratch
Wear

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title = "Nanowear Mechanisms of Mg Alloyed with Al and Y at Elevated Temperatures",

abstract = "We examine the role of important alloying elements (Al, Y), on friction and wear mechanisms of Mg as a function of temperature. Friction and wear tests of Mg–5%Al and Mg–5%Y alloys performed at room temperature, 100 °C and 150 °C reveal that addition of Al and Y significantly reduces the coefficient of friction. However, despite higher hardness of Mg–5%Y alloy, its wear rate was found to be higher than Mg–5%Al alloy at elevated temperatures. We show that this behaviour, observed for Mg–5%Y alloy at elevated temperature, can be attributed to its higher surface energy than Mg–5%Al and pure Mg, leading to enhanced adhesive wear, which is detrimental to tribological applications.",

keywords = "Adhesion, Elevated temperature, Mg alloy, Scratch, Wear",

author = "Aditya Gokhale and Trapesh Meena and Lee, {Soo Yeol} and Huang, {E. Wen} and Gosvami, {Nitya N.} and Sinha, {Sujeet K.} and Jayant Jain",

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T1 - Nanowear Mechanisms of Mg Alloyed with Al and Y at Elevated Temperatures

AU - Gokhale, Aditya

AU - Meena, Trapesh

AU - Lee, Soo Yeol

AU - Huang, E. Wen

AU - Gosvami, Nitya N.

AU - Sinha, Sujeet K.

AU - Jain, Jayant

PY - 2020/3/3

Y1 - 2020/3/3

N2 - We examine the role of important alloying elements (Al, Y), on friction and wear mechanisms of Mg as a function of temperature. Friction and wear tests of Mg–5%Al and Mg–5%Y alloys performed at room temperature, 100 °C and 150 °C reveal that addition of Al and Y significantly reduces the coefficient of friction. However, despite higher hardness of Mg–5%Y alloy, its wear rate was found to be higher than Mg–5%Al alloy at elevated temperatures. We show that this behaviour, observed for Mg–5%Y alloy at elevated temperature, can be attributed to its higher surface energy than Mg–5%Al and pure Mg, leading to enhanced adhesive wear, which is detrimental to tribological applications.

AB - We examine the role of important alloying elements (Al, Y), on friction and wear mechanisms of Mg as a function of temperature. Friction and wear tests of Mg–5%Al and Mg–5%Y alloys performed at room temperature, 100 °C and 150 °C reveal that addition of Al and Y significantly reduces the coefficient of friction. However, despite higher hardness of Mg–5%Y alloy, its wear rate was found to be higher than Mg–5%Al alloy at elevated temperatures. We show that this behaviour, observed for Mg–5%Y alloy at elevated temperature, can be attributed to its higher surface energy than Mg–5%Al and pure Mg, leading to enhanced adhesive wear, which is detrimental to tribological applications.

KW - Adhesion

KW - Elevated temperature

KW - Mg alloy

KW - Scratch

KW - Wear

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Nanowear Mechanisms of Mg Alloyed with Al and Y at Elevated Temperatures

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Keywords

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