Explanation

Also called thermal wear. The removal of materials from the surface due to bating, melting or evaporation caused by high temperature during friction. The ablation wear caused by the high temperature of the outer surface of the spacecraft due to friction with the air during the flight in the atmosphere is also included in the high temperature wear. The wear that atoms precipitate from one solid and diffusion to another at high temperature is sometimes called high temperature wear. high temperature wear is not all serious wear. For example, materials melting is limited to a very thin interface layer, which can make serious adhesive wear transformation into a slightly slow removal process. High temperature abrasive wear is the most common in industrial production. In addition, the reduction of hardness of materials at high temperature will reduce wear resistance, and oxidation or vulcanization and other reactions will sometimes accelerate the wear process. Therefore, in order to adapt to high temperature wear conditions, attention should be paid to the high-temperature strength and oxidation resistance of wear resisting materials when selecting them, and the changes of wear resisting materials at high temperatures should also be considered.

Classification