Agricultural Engineering, Volume 47

EFFECT OF MICROSTRUCTURE ON ABRASIVE WEAR BEHAVIOUR

Balaji Narayanaswamy, Peter Hodgson, Hossein Beladi
Deakin University, Australia

Abstract

In the current study, abrasive wear resistance of two distinct microstructures, namely pearlite and martensite with a similar hardness level was studied. A two-body abrasive environment was simulated in a pin-on-disc tribometer (ASTM G99), by subjecting the metallic surface (i.e. microstructure) against silicon carbide abrasive particles. Pearlite (multi-phase) revealed better abrasion resistance than martensite (single-phase) with respect to abrasive wear characteristics. Abrasion induced microstructural changes were analysed through sub-surface and topographical investigations. To summarize, the multi-phase microstructure (ferrite and cementite lamellae in pearlitic microstructure) was more efficient in combating abrasion than the single-phase microstructure (i.e. martensite).

Keyword(s): Abrasive wear, microstructure, tribometer and specific wear rate.


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Agricultural Engineering ISSN 1392-1134 / eISSN 2345-0371

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