Wear behaviour of graphitic aluminium composite sliding under dry conditions

S. Mohan; J. P. Pathak; R. C. Gupta; S. Srivastava

doi:10.1515/ijmr-2002-0214

Article

Wear behaviour of graphitic aluminium composite sliding under dry conditions

S. Mohan , J. P. Pathak , R. C. Gupta and S. Srivastava

Published/Copyright: February 15, 2022

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From the journal International Journal of Materials Research Volume 93 Issue 12

Abstract

A modified mixing and casting procedure was used for the preparation of Al-1.2 Si-0.8 Fe–Gr composite (wt.%). Graphite and gray cast iron powders were blended and dispersed in Al-1.2 Si matrix alloy melt and poured in a cast iron mould. Gray cast iron powder worked as carrier for graphite particles. The presence of graphite improves the ultimate tensile strength, tensile and compressive stress but beyond 1 % of graphite all properties deteriorate. However, hardness continuously increases and percentage elongation reduces with graphite. In wear studies, different mechanisms: mild-oxidative, oxidative-metallic and severe-metallic, are operative in the different combinations of sliding velocities and applied loads.

Keywords: Wear rate; Wear mechanism; Oxidative

Prof. J. P. Pathak Dept. of Metallurgical Engineering Banaras Hindu University Varanasi-221 005, India Tel.: +91542369 346 Fax: +91 542 368428/368 174

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Received: 2002-04-25

Published Online: 2022-02-15

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https://doi.org/10.1515/ijmr-2002-0214

Keywords for this article

Wear rate; Wear mechanism; Oxidative