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Transient oxidation of NiAl

Journal Article · · Acta Materialia
; ;  [1];  [2]
  1. Max-Planck-Institut fuer Metallforschung, Stuttgart (Germany). Institut fuer Werkstoffwissenschaft
  2. Technion, Haifa (Israel). Dept. of Materials Engineering
The transient oxidation stage of single crystal (001)NiAl was investigated using scanning electron microscopy, transmission electron microscopy, electron diffraction and high resolution electron microscopy. (001)NiAl was oxidized in air at 950 C for 50 h in order to produce transient forms of alumina on the surface. After oxidation, an oxide scale with plate-like surface morphology formed. The platelets on the surface of the oxide were formed due to the growth of {gamma}-Al{sub 2}O{sub 3}, not {theta}-Al{sub 2}O{sub 3}. Randomly-oriented {alpha}-Al{sub 2}O{sub 3} grains were observed at the oxide/metal interface.
OSTI ID:
616258
Journal Information:
Acta Materialia, Journal Name: Acta Materialia Journal Issue: 6 Vol. 46; ISSN 1359-6454; ISSN ACMAFD
Country of Publication:
United States
Language:
English

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