Effect of microstructure and hardness on the grinding abrasive wear resistance of a ball bearing steel

Chandrasekaran, T and Kishore, * (1993) Effect of microstructure and hardness on the grinding abrasive wear resistance of a ball bearing steel. In: Wear, 161 (1-2). pp. 105-109.

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Abstract

Grinding media wear appears to be non-linear with the time of grinding in a laboratory-scale ball mill. The kinetics of wear can be expressed as a power law of the type w=atb, where the numerical constant a represents wear of a particular microstructure at time t = 1 min and b is the wear exponent which is independent of the particle size prevailing inside a ball mill at any instant of time of grinding. The wear exponent appears to be an indicator of the cutting wear mechanism in dry grinding: a plot of the inverse of the normalised wear exponent (Image ) versusHs (where Hs is the worn surface hardness of the media) yields a curve similar to that of a wear resistance plot obtained in the case of two-body sliding abrasive wear. This method of evaluating the cutting wear resistance of media is demonstrated by employing 15 different microstructures of AISI-SAE 52100 steel balls in dry grinding of quartz in a laboratory-scale ball mill.

Item Type:	Journal Article
Publication:	Wear
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	08 Feb 2011 06:06
Last Modified:	08 Feb 2011 06:06
URI:	http://eprints.iisc.ac.in/id/eprint/35434

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