Theoretical Studies of Coating Adhesion under Gas-Thermal Powder Spraying

IF 0.4 Q4 ENGINEERING, MECHANICAL Journal of Machinery Manufacture and Reliability Pub Date : 2024-02-08 DOI:10.1134/S1052618823100072
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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Abstract

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.

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气热粉末喷涂下涂层附着力的理论研究
根据弹性理论原理,以 "喷涂粉末金属基底颗粒 "为例,对粘在一起的物体的粘附力进行了评估。得出了剪应力和分离应力的确定关系。将剪应力和分离应力的理论值与实验数据进行比较,证实了使用附着力理论计算热喷涂涂层附着力强度的有效性。根据所建立的理论原则,可以选择适当的沉积粉末材料分量,从而在热喷涂过程中提供主涂层与金属基体或底层之间所需的附着强度。
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来源期刊
CiteScore
0.80
自引率
33.30%
发文量
61
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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