Some aspects of improving abrasive resistance

A survey of literature on the structural and phase strengthening of alloys and steel is presented. Methods of strengthening such as mechanical riveting and expanding the length of intergrain boundaries do not increase abrasive wear resistance to hard particle attack. Alloying to increase the interatomic bond forces does not increase abrasive wear resistance. Thus there is a close connection between the modulus of normal elasticity of different metals and the wear resistance.The sharp decrease in dislocation mobility at the brittle transition temperature increases abrasive wear resistance. For a high carbon steel the resistance increases by a factor of 2.5.Increased resistance to attack by abrasive particles (by a factor of 2) can be achieved by preliminary friction treatment of the steel surface (especially by dry frictional contact against low carbon steel) because of the complex phase and structural transformations in the material of the surface that is subjected to frictional contact.