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Surface modification by thermal oxidation of oxide dispersion strengthened (ODS) aluminium-containing high temperature alloys generally involves the formation of a dense and adherent alumina layer, which protects the underlying matrix against further degradation in aggressive environments at high temperatures. It is also known that alumina is a material with good biocompatibility and excellent wear behaviour. This combination makes this type of surface treated alloys a choice for constructional materials for high temperature applications and also a potential candidate for room temperature applications, such as load-bearing surgical implants. In this study attention is paid to the formation of alumina layers by high temperature oxidation, as a surface treatment, at 900, 1200 and 1400 degrees Celsius in air on a commercial FeCrAlY -alloy PM 2000. Specimens originating from two different batches were used to investigate the effect of differences in microstructure and minor constituents on the oxidation kinetics, composition and structure of the oxide scale.

Additional information

Authors: PREZ P, Institute for Health and Consumer Protection, JRC-EC, Ispra (IT);HAANAPPEL V.A.C, Institute for Health and Consumer Protection, JRC-EC, Ispra (IT);STROOSNIJDER M.F, Institute for Health and Consumer Protection, JRC-EC, Ispra (IT)
Bibliographic Reference: An article published in: Elsevier Surface and Coatings Technology,139 (2001) pp.207-215
Record Number: 200013546 / Last updated on: 2001-07-25
Original language: en
Available languages: en