A Numerical Approach to Simulating Oxidation in Thermal Barrier Coatings

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Date

2020

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Elsevier

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Department of Mechanical Engineering
(2016)
The Mechanical Engineering Doctoral Program has started in 2016-2017 academic year. We have highly qualified teaching and research faculty members and strong research infrastructure in the department for graduate work. Research areas include computational and experimental research in fluid and solid mechanics, heat and mass transfer, advanced manufacturing, composites and other advanced materials. Our fundamental mission is to train engineers who are able to work with advanced technology, create innovative approaches and authentic designs, apply research methods effectively, conduct research and develop high quality methods and products in space, aviation, defense, medical and automotive industries, with a contemporary education and research infrastructure.
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Department of Basic English (Prep School)
Atilim University Department of Basic English, have the goal to turn each of you into a member of world citizens highly capable in their field of study. In this way, we also would like to add to the cumulative knowledge level in the world and contribute to the development of our own country. Aware of our responsibilities towards this goal, we constantly update our language teaching approaches and applications. In this process, we utilize the benefits of the technology and we accommodate a tablet-based language teaching model in our classes.
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Mechanical Engineering
(2009)
The Atılım University Department of Mechanical Engineering started education in 2009, and offers graduate and doctorate degree programs, in addition to its undergraduate program. Our main goal is to graduate Mechanical Engineers who have the skills to design, analyze and synthesize; who are able to convert advanced technology and innovations into products; and who have the culture of research and cooperation. While our graduates reach this goal, they adopt the principle of life-long learning, and develop a sense of entrepreneurship, paying importance to professional ethics. With a curriculum prepared in line with the criteria of MÜDEK, we help our students develop themselves professionally, and socially. Graduates of mechanical engineering may be employed in many sectors and in a wide array of positions. Able to work under any field that involves production and energy conversion, graduates of the department may also gain expertise in fields such as aviation, automotive, or material engineering.

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Abstract

Computational analysis and simulation of multi-physics phenomena taking place in coating systems is still a challenging task. Specifically, for ceramic coatings used as a system of protection for base materials against elevated temperatures, known as thermal barrier coating (TBC) systems, construction of continuum level models which can express coupled nonlinear phenomena has attracted great attention. Thermal stresses, oxidation, creep and numerous other mechanisms and phenomena makes it even harder to model and simulate the behavior of TBCs. In this article, a new numerical model which allows simulation of oxidation and thermally grown oxide (TGO) of bond-coat is presented. Phase field theory is used with finite strain formulation and implemented using user element subroutine (UEL) in ABAQUS software for finite element method. Results are compared with experimental data available for TGO in the literature. © 2020 Elsevier Inc. All rights reserved

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Keywords

Ceramic, Ceramic failure, FEM, Oxidation, Phase field, Thermal barrier coating, Thermally grown oxide

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0

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Source

Encyclopedia of Renewable and Sustainable Materials: Volume 1-5

Volume

1-5

Issue

Start Page

986

End Page

992

URI

https://doi.org/10.1016/B978-0-12-803581-8.11194-4
 https://hdl.handle.net/20.500.14411/3969

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Scopus