Mechanism and influencing factors of adhesive wear

The mechanism of adhesive wear

The mechanism of adhesive wear mainly includes the following aspects:

1. Plastic deformation during surface contact: At the microscopic contact points formed between the contact surfaces, the material will undergo plastic deformation due to the action of local loads. This deformation will cause the convex and concave parts on the surface to plastically deform each other, thereby increasing the adhesion of the surface.

2. Cold welding contact between surfaces: When the local deformation of the contact surface reaches a certain level, the metal atoms on the surface will diffuse and combine with each other to form a cold welding contact. This cold welding contact will increase the surface adhesion and cause localized shearing and destruction

3. Effect of friction heat: Due to the friction between contact surfaces, a large amount of friction heat will be generated. The accumulation of frictional heat will cause the temperature of the contact surface to increase, thereby reducing the hardness of the material and increasing the chance of plastic deformation on the surface.

4. Influence of lubrication conditions: The quality of lubrication conditions has an important impact on adhesive wear. Proper lubrication can reduce the friction between contact surfaces and reduce the occurrence of adhesive wear. Lack of lubrication, lubricant failure or improper use will increase the degree of adhesive wear.

Factors affecting adhesive wear

The degree of adhesive wear is affected by the following factors:

1. Material hardness: The hardness of a material determines its ability to resist adhesive wear. Generally, materials with higher hardness have greater resistance to adhesive wear.

2. Surface roughness: Surface roughness has an important impact on adhesive wear. Rougher surfaces increase the contact area between contact surfaces, increasing the chance of adhesive wear.

3. Temperature: Temperature has an important influence on adhesive wear. The increase in temperature will cause the softening of the material and the failure of the lubricant, thus increasing the degree of adhesive wear.

4. Lubrication conditions: The quality of lubrication conditions directly affects the degree of adhesive wear. Good lubrication can reduce friction and reduce the occurrence of adhesive wear

5. Load, the size of the load has a direct impact on adhesive wear. A larger load will increase the pressure between the contact surfaces, increasing the chance of material wear.

6. Working environment: Different working environments will also have an impact on adhesive wear. For example, moist environments can cause lubricant failure, thereby increasing the extent of adhesive wear.