Journal of Nanomedicine & Nanotechnology

Sliding wear behavior of A356/Al2O3 metal matrix nano-composites under both dry and oil lubricating conditions

5^th International Conference on Nanotek & Expo

November 16-18, 2015 San Antonio, USA

E Y El-Kady1, T S Mahmoud1, M Abdel-Aziz2 and T A Khalil1

1Benha University, Egypt 2Central Metallurgical Research and Development Institute, Egypt

Posters-Accepted Abstracts: J Nanomed Nanotechnol

Abstract:

In the present investigation the wear behavior of A356/Al2O3 metal matrix nano-composites (MMNCs) were investigated at both room and elevated temperatures under dry sliding conditions. Moreover, the wear behavior of the A356/Al2O3 MMNCs was investigated at room temperature under oil lubricating conditions. The results revealed that the A356/Al2O3 MMNCs exhibited lower wear rates at both room and elevated temperatures when compared with the A356 monolithic alloy. Increasing both the volume fraction and/or reducing the Al2O3 nanoparticles size reduces the wear rates of the A356/Al2O3 MMNCs. The composites exhibited transition temperature between 150 and 200oC, while the unreinforced alloy exhibited a transition temperature between 100 and 150oC. The wear rates of the nano-composites under oil lubricating conditions were much lower than under dry sliding conditions at room temperature. Increasing the volume fraction reduces the wear rate of the nano-composites. Increasing the sliding speed increases slightly the wear rate of the nano-composites under oil lubricating conditions.

Biography :

Email: eyelkady@yahoo.com