Oxidation behavior of FeAl intermetallic coatings produced by magnetron sputter deposition

Journal Article · Tue Nov 03 04:00:00 EST 1998 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(98)00360-1· OSTI ID:289483

Liu, Z; Gao, W ^[1]; Wang, F ^[2]

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1. Univ. of Auckland (New Zealand). Dept. of Chemical and Materials Engineering
2. Academia Sinica (China). State Key Lab. for Corrosion and Protection

FeAl intermetallics possess good high temperature oxidation and corrosion resistance due to their ability to form protective Al{sub 2}O{sub 3} scales. Recently, the authors studied the effects of alloy coating grain size on the selective oxidation and scale spallation behaviors. The results indicated that a number of alloy coatings produced by magnetron sputter deposition possessed much better oxidation and scale spallation resistance than the as-cast alloys. The Al{sub 2}O{sub 3} scales that formed on the coatings showed a much finer grain size than those formed on the as-cast alloys. The adhesion between the oxide scales and metals was also improved due to the creep of metals and scales during oxidation. In the present work, FeAl intermetallic coatings were produced with the unbalanced magnetron sputter deposition technique. Cyclic oxidation tests were carried out to study the oxidation behavior of the coated and uncoated FeAl samples.

• OSTI ID: 289483
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 11 Vol. 39; ISSN 1359-6462; ISSN SCMAF7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADHESION
ALUMINIUM ALLOYS
ALUMINIUM OXIDES
CHEMICAL COMPOSITION
COATINGS
INTERMETALLIC COMPOUNDS
IRON ALLOYS
OXIDATION
SCALING
SPUTTERING