@Article{cmes.2022.019528,
AUTHOR = {Quan Wen, Fulei Jing, Changxian Zhang, Shibai Tang, Junjie Yang},
TITLE = {Review of Numerical Simulation of TGO Growth in Thermal Barrier Coatings},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {132},
YEAR = {2022},
NUMBER = {2},
PAGES = {361--391},
URL = {http://www.techscience.com/CMES/v132n2/48302},
ISSN = {1526-1506},
ABSTRACT = {Thermally grown oxide (TGO) is a critical factor for the service life of thermal barrier coatings (TBC). Numerical
simulations of the growth process of TGO have become an effective means of comprehensively understanding the
progressive damage of the TBC system. At present, technologies of numerical simulation to TGO growth include
two categories: coupled chemical-mechanical methods and mechanical equivalent methods. The former is based
on the diffusion analysis of oxidizing elements, which can describe the influence of bond coat (BC) consumption
and phase transformation in the growth process of TGO on the mechanical behavior of each layer of TBC, and
has high accuracy for the thickness evolution of TGO, but they cannot describe the lateral growth of TGO and the
rumpling phenomenon induced. The latter focuses on describing the final stress and strain state after the growth of
a specific TGO rather than the complete growth processes of TGO. Based on the measured TGO thickness growth
curve, simulations of thickening and lateral growth can be achieved by directly applying anisotropic volumetric
strain to oxidized elements and switching elements properties from the BC to the TGO.},
DOI = {10.32604/cmes.2022.019528}
}