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Dry Sliding Wear of Wrought Al-Alloys

Aadarsh Mishra ,
Department of Mechanical Engineering, Manipal Institute of Technology, Manipal University, Eshwar Nagar, Manipal, Karnataka- 576104

Abstract—Aluminium alloys are very attractive compared to other materials like steels, particularly for their mechanical properties. Despite of having a relatively low density (2.7 g/cm^3 ascompared to ± 7.9 g/cm^3 of steel), they also possess high ductility (even at roomtemperature), high electrical and thermal conductivity and resistance to corrosion.However, aluminium by itself exhibits poor tribological properties and their usage, for example in automotive applications, has been limited by their inferiorstrength, rigidity and wear resistance, compared with ferrous alloys.With respect to friction and wear behaviour, it has been well understood that the tribological behaviour of aluminium alloys is strongly influenced by the mechanical, physical and chemical properties of the near-surface materials.Intimate contact between ductile materials in particular, normally involved transferred materials, which may result in theformation of a mechanically mixed layer (MML).

Index Terms—Mechanical mixed layer, Al-alloys, Sliding wear theory

Cite: Aadarsh Mishra, "Dry Sliding Wear of Wrought Al-Alloys," International Journal of Mechanical Engineering and Robotics Research, Vol. 3, No. 3, pp. 432-436, July 2014.