Effect of magnesium on sliding wear performance of cast Al-8.3Fe-0.8V-0.9Si alloys

Sahoo, K L and Das, Swapan K (2003) Effect of magnesium on sliding wear performance of cast Al-8.3Fe-0.8V-0.9Si alloys. Materials Science and Technology, 19 (7). pp. 959-965.

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The paper deals with the sliding wear behaviour of cast Al - Fe - V - Si alloys evaluated by 'pin on disc' tribometry. The alloys were cast in cylindrical 15 mm diameter metallic moulds from which 8 mm diameter pins were machined. Volumetric wear loss and coefficient of friction were measured. Worn surfaces of the pins were examined by scanning electron microscopy. It was observed that by modifying the Al-Fe-V-Si alloys with Mg or AI-Mg master alloy the structure of Al13Fe4 precipitate changed from ten-armed star-like to hexagonal, rectangular, cuboidal, and other compact forms. The wear rate of the cast Al-Fe-V-Si alloys was much lower than that of eutectic AI-Si alloy. Modified Al-Fe-V-Si alloys exhibited lower wear rate and coefficient of friction than the unmodified Al-Fe-V-Si alloy. The wear rate decreased with increasing load for the modified Al-Fe-V-Si alloys. Both the wear rate and coefficient of friction were found to be load dependent. During wear extensive plastic deformation and work hardening occurred. The wear was shown to take place by delamination. (C) 2003 IoM Communications Ltd. Published by Maney for the Institute of Materials, Minerals and Mining.

Item Type:Article
Official URL/DOI:DOI: 10.1179/026708303225001966
Uncontrolled Keywords:Matrix Composites; Aluminum-Alloys; Temperatures; Mild
Divisions:Metal Extraction and Forming
Material Science and Technology
ID Code:3468
Deposited By:Sahu A K
Deposited On:19 Jul 2011 10:03
Last Modified:08 Feb 2012 17:02
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