Erosionsverschleiß

Erosionsverschleiß refers to material loss caused by the impingement and abrasion of solid particles carried by a fluid, such as a gas or liquid. This phenomenon is distinct from pure erosion, which involves only the direct impact of a fluid, and wear, which can encompass a broader range of surface degradation mechanisms. In erosionsverschleiß, the particles act as abrasive agents, deforming and removing material from the surface over time.

The severity of erosionsverschleiß depends on several factors. The velocity of the fluid and the particles is a critical parameter, as higher velocities generally lead to increased impact forces and thus greater material loss. The size, shape, and hardness of the impacting particles also play a significant role. Harder, sharper particles tend to cause more damage than softer, rounded ones. The angle of impact is another important consideration; oblique impacts can lead to a combination of sliding and plowing, often resulting in higher wear rates than normal impacts. The material properties of the eroded surface, including its hardness, ductility, and microstructure, are also crucial in determining its resistance to erosionsverschleiß.

This type of wear is prevalent in various industrial applications. Examples include pipelines carrying slurries, turbine blades exposed to dust-laden air or water droplets, sandblasting equipment, and agricultural machinery operating in abrasive environments. Understanding and mitigating erosionsverschleiß is essential for maintaining the integrity and operational lifespan of equipment in these and many other contexts. Prevention strategies often involve controlling particle concentration, reducing fluid velocity, selecting wear-resistant materials, and implementing protective coatings or shields.