Determination of residual stress distribution from in situ curvature measurements for thermally sprayed WC/Co coatings
Résumé
An in situ monitoring of curvature of the specimen during spraying using a high speed video system was implemented to determine stresses in thermally sprayed WC/Co coatings. Influences of different spraying techniques (atmospheric plasma spraying and high-velocity oxygen fuel) and cooling levels were considered using a mathematical model. Results show that temperature history of a part is of paramount importance in stress generation and distribution.