How to Evaluate the Wear Resistance of Materials?
"Abrasion resistance" is also called wear resistance, the wear resistance of materials, expressed by the amount of wear or the wear resistance index. Wear is a very common phenomenon, and there are many reasons for this phenomenon, including physical, chemical and mechanical factors. The main ones are: abrasive wear, adhesive wear (bonding), fatigue wear (pitting), and corrosive wear. In terms of adhesive wear, when solid surfaces come into contact, their high and low peaks will prevent the two solid surfaces from 100% contact. The protruding parts come into contact with each other, and due to the large pressure, they produce plastic deformation, which causes cold welding, that is, adhesion. The adhesion part causes one side of the weaker material to be sheared due to friction and sliding, causing the material to be adhered from the weaker side to the stronger side. Main factors affecting material wear resistance Hardness The wear resistance of metal materials can be measured...