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Abstract

The effect of the niobium addition by ion implantation on the corrosion behaviour of a gamms-TiAl based intermetallic alloy Ti-48Al-2Cr in air at 800 C has been studied. Comparison is made with a material in which the niobium was added by alloying. Addition of niobium to the alloy appears to improve significantly the oxidation resistance in both isothermal and cyclic oxidation tests. Possible mechanisms for the effect of niobium on the oxidation resistance of TiAl based intermetallics are discussed in view of the results obtained for the implanted material.

Additional information

Authors: SCHMUTZLER H J, JRC Ispra (IT);STROOSNIJDER M F, JRC Ispra (IT);ZHENG N, Institute for Material in Energy Systems, Research Centre Jülich (DE);QUADAKKERS W J, Institute for Material in Energy Systems, Research Centre Jülich (DE)
Bibliographic Reference: Paper presented: 9th International Conference on Surface Modification of Metals by Ion Beams, San Sebastian (ES), September 4-8, 1995
Availability: Available from (1) as Paper EN 39279 ORA
Record Number: 199511466 / Last updated on: 1995-11-03
Category: PUBLICATION
Original language: en
Available languages: en