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Experimental analysis of the wear behaviour of reinforced hybrid LM25 metal matrix nano composite

B. KUMARA GURUBARAN1,* , P. GOPAL1, V. DEEPAKARAVIND1, T. SENTHILKUMAR2

Affiliation

  1. Department of Mechanical Engineering, BIT Campus, Anna University, Tiruchirappalli, Tamilnadu, India.
  2. Department of Mechanical Engineering, BIT Campus, Anna University, Tiruchirappalli, Tamilnadu, India

Abstract

In this paper new concept was implemented to improve the wear and temperature resistance in addition to reinforcements such as Aluminium oxide and Silicon carbide nano particles added in the LM25 hybrid composite by using stir-casting process. The wear resistance and frictional properties of the hybrid metal-matrix nano composite were studied by performing a dry-sliding-wear test by using a pin-on-disc wear tester. The experiments were conducted at a constant sliding velocity of 1.04 m/s and sliding distance of 628 m with various loads of (10-40) N .The results showed that the reinforcement of the metal matrix with nano SiC and nano Alumina reduced the wear rate at room temperature and also indicate that increasing the wear of the test specimens with an increasing the load and sliding distance. In addition to the coefficient of friction decreased with the load and increased volume content of the reinforcement. The wear surfaces were examined with a scanning electron microscope which indicated abrasive wear mechanism due to the hard ceramic particles on the wear surface of the metal matrix nano composite of LM25 samples..

Keywords

Dry-Sliding Wear, LM25Al alloy hybrid Metal matrix Nano composite, Wear mechanism.

Submitted at: Sept. 28, 2015
Accepted at: Oct. 28, 2015

Citation

B. KUMARA GURUBARAN, P. GOPAL, V. DEEPAKARAVIND, T. SENTHILKUMAR, Experimental analysis of the wear behaviour of reinforced hybrid LM25 metal matrix nano composite, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 11-12, pp. 1794-1798 (2015)