ABSTRACT

Erosive particles can be found in many applications such as pneumatic conveying, food processing, surface blasting, ¨uidized beds, and gas turbines. Whether their presence is induced or unavoidable, particles impact these systems’ surfaces and cause erosion damage. ˜e resulting changes in the impacted surface geometry and Ÿnish adversely aµect the performance and life of the equipment. Extensive research eµorts have been directed at developing materials and coatings that are resistant to erosion and at eliminating or reducing the frequency and intensity of particle surface impacts. Erosion rate is known to be aµected by both impact velocities and impingement angles of the erosive particles. It is also aµected by the surrounding temperature, material properties of the abrasive particles and the impacted surfaces, and the angularity or roundness of particles.