Finite element modeling of the effect of interface anomalies on thermal stresses in alumina scales

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Description

The scales that grow from oxidation often develop a convoluted morphology or interface pores. High thermal stresses can develop locally and are potentially detrimental to the scale or interface integrity. Finite element simulations are used to examine residual thermal stresses and strains that result when these deviations from a flat interface have formed, and the resulting geometry is subsequently cooled to room temperature. A variety of geometries will be considered for alumina scales on a FeCrAl substrate.

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12 p.

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Wright, J.K.; Williamson, R.L.; Hou, P.Y.; Cannon, R.M.; Renusch, D.; Veal, B. et al. July 1, 1998.

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Description

The scales that grow from oxidation often develop a convoluted morphology or interface pores. High thermal stresses can develop locally and are potentially detrimental to the scale or interface integrity. Finite element simulations are used to examine residual thermal stresses and strains that result when these deviations from a flat interface have formed, and the resulting geometry is subsequently cooled to room temperature. A variety of geometries will be considered for alumina scales on a FeCrAl substrate.

Physical Description

12 p.

Notes

OSTI as DE98056062

Source

  • 193. meeting of the Electrochemical Society, Inc., San Diego, CA (United States), 3-8 May 1998

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  • Other: DE98056062
  • Report No.: INEEL/CON--98-00046
  • Report No.: CONF-980504--
  • Grant Number: AC07-94ID13223;AC03-76SF00098;W-31109-ENG-38
  • DOI: 10.2172/639753 | External Link
  • Office of Scientific & Technical Information Report Number: 639753
  • Archival Resource Key: ark:/67531/metadc696083

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  • July 1, 1998

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • July 19, 2016, 1:07 p.m.

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Wright, J.K.; Williamson, R.L.; Hou, P.Y.; Cannon, R.M.; Renusch, D.; Veal, B. et al. Finite element modeling of the effect of interface anomalies on thermal stresses in alumina scales, report, July 1, 1998; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc696083/: accessed June 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.