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On The Oxidation Resistance of Nickel-Based Superalloys
Dept of Metallurgy and Materials, University in Birmingham, UK.
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, The Institute of Technology.
Siemens Industrial Turbomachinery AB, Finspång.
Dept of Metallurgy and Materials, University of Birmingham, UK.
2011 (English)In: Advanced Materials Research, ISSN 1022-6680, E-ISSN 1662-8985, Vol. 278, 174-179 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, the factors influencing the oxidation resistance of superalloys are studied. A model is proposed by which the Al2O3-forming properties of a given composition can be estimated, based upon the thermodynamic and kinetic factors influencing scale growth. The numerical modelling is tested by experimental work on a number of compositional variants of the newly-developed SCA425+ superalloy, which contains appreciable quantities of Cr. The modelling is shown to be in broad agreement with experiment. The effects of Al, Cr and Si on the oxidation resistance of this class of alloy have been rationalised.

Place, publisher, year, edition, pages
Switzerland: Trans Tech Pubications , 2011. Vol. 278, 174-179 p.
Keyword [en]
nickel alloys, oxidation, oxide, thermodynamics, segregation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-70544DOI: 10.4028/www.scientific.net/AMR.278.174ISI: 000303548400030OAI: oai:DiVA.org:liu-70544DiVA: diva2:440219
Available from: 2011-09-12 Created: 2011-09-12 Last updated: 2017-12-08

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Moverare, Johan

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