Abstract
This paper describes a study of the erosion of a polymer-particle coating system by a water jet apparatus. Modified versions of two established wear models were applied to this system; these were based on a simple hardness controlled abrasion model and a bulk toughness controlled abrasion model. The mechanical properties of the coatings were modified and their bulk properties were characterized using an indentation hardness technique. The hydrodynamic erosion characteristics of the same coatings were examined using a water jet apparatus. The erosion of the coatings was observed qualitatively and was also quantified in terms of a critical water jet pressure. The modified wear models were then applied to this system, in terms of the bulk mechanical properties of the coatings, and the models were critically evaluated and appraised.
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