Microstructural and mechanical characterization of alumina scales thermally developed on iron aluminide alloys

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Several alumina-forming Fe-Al intermetallic alloys have been oxidized in oxygen for 100 h at 1000 C to understand the scaling kinetics, scale morphology, scale adhesion, and strain accommodation in the scales. Oxidation studies were conducted by thermogravimetry, followed by analyses of the surfaces of oxide scales. In addition, samples were cooled to 77 K and then fractured; then, their scale/metal interfaces were analyzed. Some of the scales were adhesion-tested by applying a tensile load to pull the scale away from the substrate. Finally, ruby fluorescence was used to measure in-plane strains in the oxide scales and values correlated with scale ... continued below

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9 p.

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Natesan, K.; Klug, K.L.; Renusch, D.; Grimsditch, M. & Veal, B.W. May 1, 1996.

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Description

Several alumina-forming Fe-Al intermetallic alloys have been oxidized in oxygen for 100 h at 1000 C to understand the scaling kinetics, scale morphology, scale adhesion, and strain accommodation in the scales. Oxidation studies were conducted by thermogravimetry, followed by analyses of the surfaces of oxide scales. In addition, samples were cooled to 77 K and then fractured; then, their scale/metal interfaces were analyzed. Some of the scales were adhesion-tested by applying a tensile load to pull the scale away from the substrate. Finally, ruby fluorescence was used to measure in-plane strains in the oxide scales and values correlated with scale microstructures.

Physical Description

9 p.

Notes

OSTI as DE96012812

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  • 10. annual conference on fossil energy materials, Knoxville, TN (United States), 14-16 May 1996

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  • Other: DE96012812
  • Report No.: ANL/ET/CP--90236
  • Report No.: CONF-9605167--8
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/437705 | External Link
  • Office of Scientific & Technical Information Report Number: 266765
  • Archival Resource Key: ark:/67531/metadc668250

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  • May 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Dec. 15, 2015, 6:48 p.m.

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Natesan, K.; Klug, K.L.; Renusch, D.; Grimsditch, M. & Veal, B.W. Microstructural and mechanical characterization of alumina scales thermally developed on iron aluminide alloys, article, May 1, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc668250/: accessed October 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.