Ceramic coatings are widely used in many engineering applications, especially applications related to components operating at elevated temperatures. One of the main issues relates to ceramic coatings is the development of residual stresses due to quenching and the thermal mismatch between the deposited coating layers and the substrate. In this work, a computational framework is developed to investigate the effect of various process parameters on the development of the residual stresses. The geometry of the coating layers and the interface roughness between the layers is first generated using SimCoat, a Monte Carlo based statistical algorithm that determines the effect of process parameters (droplet size, spraying speed, etc.) on the characteristics of the developed coating (coating thickness, porosity, etc.). An in-house code is used to convert the statistical data into a finite element (FE) model. Various FE models are generated with different process parameters, and the development of residual stresses is compared between them.
|Title of host publication
|Subtitle of host publication
|Design, Processing, Characterization, and Applications
|American Society of Mechanical Engineers (ASME)
|Published - 2019
|ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Bibliographical notePublisher Copyright:
Copyright © 2019 ASME.
- Residual stresses
ASJC Scopus subject areas
- Mechanical Engineering