Mathematical modeling of high velocity oxygen fuel thermal spraying: An overview

High velocity oxygen fuel (HVOF) thermal spraying is a versatile technique widely used for the manufacture of coatings from various materials system. The physical, mechanical, and chemical characteristics of a coating are cri tically influenced by the operating parameters used during HVOF thermal spr aying. Consequently, mathematical modeling is often utilized in an effort t o obtain maximum coating performance while minimizing experimentation. In t his paper, modeling of HVOF thermal spray processes is reviewed, paying par ticular attention to combustion, gas/particle dynamics, particle impingemen t, and coating formation.