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Mechanistic-Based Lifetime Predictions for High-Temperature Alloys and Coatings

Pint, Bruce A. and Dryepondt, Sébastien and Vande Put, Aurélie and Zhang, Yichan Mechanistic-Based Lifetime Predictions for High-Temperature Alloys and Coatings. (2012) JOM Journal of the Minerals, Metals and Materials Society, 64 (12). 1454-1460. ISSN 1047-4838

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Official URL: http://dx.doi.org/10.1007/s11837-012-0474-2

Abstract

Increasing efficiency is a continuing goal for all forms of power generation from conventional fossil fuels to new renewable sources. However, increasing the process temperature to increase efficiency leads to faster degradation rates and more components with corrosion-limited lifetimes. At the highest temperatures, oxidation-resistant alumina-forming alloys and coatings are needed for maximum lifetimes. However, lifetime models accurate over the extended application durations are not currently available for a wide range of candidates and conditions. Increased mechanistic understanding and relevant long-term data sets will assist in model development and validation. Current progress is outlined for applying a reservoir-type model to Fe-base alloys and coatings. However, more work is needed to understand environmental effects, such as the presence of H2O, and to extend the current model to NiCrAl and NiCr alloys. As the critical performance factors are better understood, it will be easier to evaluate new materials in laboratory screening experiments.

Item Type:Article
Additional Information:Thanks to Springer editor. The definitive version is available at http://link.springer.com The original PDF of the article can be found at Springer website : http://link.springer.com/article/10.1007%2Fs11837-012-0474-2
HAL Id:hal-01168159
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > UT-Battelle (USA)
Other partners > Tennessee Technological University - TTU (USA)
Other partners > University of Tennessee - UT (USA)
Laboratory name:
Funders:
U. S. Department of Energy - Office of Fossil Energy - Advanced Research Materials Program - Assistant Secretary for Energy Efficiency and Renewable Energy, Industrial Technologies Program (Combined Heat and Power)
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Deposited By: cirimat webmestre
Deposited On:25 Jun 2015 10:58

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