A CLASSIFICATION SCHEME FOR WEAR AND CORROSION

Abstract

Many components in a sugar factory require regular replacement. The need for replacement comes from excessive wear and/or corrosion that changes the dimensions of the component and reduces its ability to function as designed. On a component-by-component basis, efforts are being made to improve the life of components through the use of better materials or redesign to improve the operating environment. To aid in the process of identifying better materials, this paper presents a classification scheme for wear and corrosion failure modes. The classification scheme can be used to identify the type of wear or corrosion that is occurring so that materials suitable for withstanding the identified failure mode can be identified. Wear has been broadly classified into metal-to-metal wear, abrasive wear and fluid erosion. Corrosion has been broadly classified into corrosion producing material loss, corrosion producing property deterioration and mechanically assisted corrosion.