Assessment of Materials for Gouging Abrasion Applications

Various materials are used to resist wear in crushing and sizing equipment in mining and mineral processing. They include steels, white irons and hardfacing deposits. Within each of these classes there are a number of options available. Jaw crusher testing using a modified ASTM G81 procedure, has been carried out to assess the resistance of some of these materials to gouging abrasion. The method involves a comparison of the wear losses that occur for reference and selected test plates when a controlled amount of standard feed rock is comminuted in a laboratory jaw crusher. Materials evaluated are Q&T abrasion resistant (AR) plate steels, cast austenitic manganese steel, chromium and chromium molybdenum white irons as plain castings and in laminated forms, and also chromium carbide and tungsten carbide overlaid wear plates and hardfacing. In addition to obtaining a performance ranking for material selection purposes, the microstructural, compositional and hardness influences on gouging abrasion attack have been investigated.Peer reviewed: YesNRC publication: Ye