The effect of various oxide dispersions on the phase composition and morphology of Al{sub 2}O{sub 3} scales grown on {beta}-NiAl
- Oak Ridge National Lab., TN (United States)
- Massachusetts Institute of Technology, Cambridge, MA (United States)
A series of oxide-dispersed {beta}-NiAl alloys were oxidized in order to explore the effect of various cation dopants on the {theta}-{alpha} phase transformation in the Al{sub 2}O{sub 3} scale and the effect of phase composition on the scale microstructure. Larger ions such as Y, Zr, La, and Hf appeared to slow the {theta} to {alpha}-Al{sub 2}O{sub 3} phase transformation, while a smaller ion, Ti, appeared to accelerate the transformation.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 468385
- Journal Information:
- Oxidation of Metals, Journal Name: Oxidation of Metals Journal Issue: 1-2 Vol. 47; ISSN OXMEAF; ISSN 0030-770X
- Country of Publication:
- United States
- Language:
- English
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