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Tribology Transactions Volume 54, 2010 - Issue 1
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Original Articles

Sliding Wear Behavior of Al-Si/Graphite Composite

G. RAJARAM Department of Metallurgical and Materials Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India
,
S. KUMARAN Department of Metallurgical and Materials Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India
&
T. SRINIVASA RAO Department of Metallurgical and Materials Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India
Pages 115-121 | Received 11 Dec 2009, Accepted 27 Sep 2010, Published online: 24 Nov 2010
 
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Abstract

In the present investigation, wear behavior of aluminum silicon alloy and its composites reinforced with graphite particulates (3 wt. %) fabricated using a stir casting route were examined. In order to improve the wettability of graphite with matrix alloy, graphite particulates were separately ball milled with 2% Cu and 2% Ni by weight percentage, preheated to 400°C, and incorporated into the molten metal. The uniform distribution of graphite particulates was observed in the microstructural investigation of developed composites, which resulted in more wear resistance than that of the matrix alloy. Scanning electron microscopic analysis of wear surface and wear debris supported the wear behavior of both the matrix alloy and the composites.

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Related Research Data

Tribological Behavior of Cu Matrix Composites Containing Graphite and Tungsten Disulfide
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