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Kry SliKing Wxzr ixhzvior of Tit-zz7075 Txtzl Tztrix toTaositxs
V. RaPaTotxPwara Raoa, N. RaPanaiaAb and P. P. P. ParZarc
aPxZAaniZal xnginxxring DxpartPxnt., R. V. R & Z Zollxgx of xnginxxring, Guntur, India
bPxZAaniZal xnginxxring DxpartPxnt., AndAra UnivxrPity Zollxgx of xnginxxrin, ViPaTAapatnaP, India
cJNTUA, AnantAapuraPu, India
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Abstract:
The AA7075 matrix reinforced with2 to 10 weight % of Tic Particles were made by stir casting. Effect of load on the wear and frictiion of the worn surfaces of martix and composite pins sliding against a rotating disc have been investigated under dry condition. The wear tests were carried out using a pin-on-disc type apparatus at three different loads (10,20 and 30N) under a constant velocity of 2m/s for a sliding distance of 2Km. The coefficient of friction was recorded and wear rate of the Aluminum metal matrix composite (AMMC) pins calculated from mass loss measurement. Scanning electron microscope (SEM) equipped with energy dispersive X-ray spectoscopy (EDX) was under to investigated the worn surface. It is observed that higher load leads to higher wear rate and lower coefficient of friction for matrix as well as composites. The hardness was found to increase with the increase in wt. % of the reinforcement.
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Keywords: Titamium carbide; wear behavior; metal matrix composites; AA 7075.
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©
2016
CSME , ISSN 0257-9731
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