Yu. A. Kuznetsov, I. N. Kravchenko, V. S. Shorkin, A. V. Dobychin, D. G. Prokhorov, N. S. Baranova, S. N. Kuznetsov
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Theoretical Studies of Coating Adhesion under Gas-Thermal Powder Spraying
Based on the principles of elasticity theory, an assessment of the adhesion for bodies stuck together has been carried out by the example of a “particle of sprayed powder–metal substrate.” Relationships for determining the shear stresses and separation stresses are obtained. The comparison of the theoretical values of shear stresses and separation stresses with experimental data confirms the validity of using adhesion theory for calculation of the adhesion strength for coatings obtained by means of thermal spraying. The developed theoretical principles make it possible to choose a suitable fraction of the deposited powder material, which can provide the required strength of adhesion between the main coating layer and the metal substrate or sublayer in the course of thermal spraying.
期刊介绍：
Journal of Machinery Manufacture and Reliability is devoted to advances in machine design; CAD/CAM; experimental mechanics of machines, machine life expectancy, and reliability studies; machine dynamics and kinematics; vibration, acoustics, and stress/strain; wear resistance engineering; real-time machine operation diagnostics; robotic systems; new materials and manufacturing processes, and other topics.
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