標題: | Nanowear Mechanisms of Mg Alloyed with Al and Y at Elevated Temperatures |
作者: | Gokhale, Aditya Meena, Trapesh Lee, Soo Yeol Huang, E-Wen Gosvami, Nitya N. Sinha, Sujeet K. Jain, Jayant 材料科學與工程學系 Department of Materials Science and Engineering |
關鍵字: | Wear;Scratch;Elevated temperature;Adhesion;Mg alloy |
公開日期: | 3-三月-2020 |
摘要: | 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 degrees C and 150 degrees 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. |
URI: | http://dx.doi.org/10.1007/s11249-020-01288-8 http://hdl.handle.net/11536/153870 |
ISSN: | 1023-8883 |
DOI: | 10.1007/s11249-020-01288-8 |
期刊: | TRIBOLOGY LETTERS |
Volume: | 68 |
Issue: | 1 |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |