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Abstract

TiAl-based intermetallic alloys are being considered as structural materials for high temperature applications due to their low density and substantial mechanical strength at high temperatures. The effect of various elements added by ion implantation on the oxidation behaviour of near -gamma Ti-48Al-2Cr and Ti48Al-2Cr-2Nb (compositions given in at %) in air at 800 C has been studied. ions implanted (1017 ions per cm{2}) were Al, Ti, Cr, Mo, Y, Mn, Pt, Nb, and Si. Comparison was made with the oxidation behaviour of Ti-48Al-2Cr-2Nb and Ti-47Al-2Cr-0.2Si alloys in which quarternary elements were added by alloying. It is concluded that ion implantation can serve as a research tool to study, in the frame of screening tests, the influence of various elements on the corrosion behaviour of materials.

Additional information

Authors: STROOSNIJDER M F, JRC Ispra (IT);SCHMUTZLER H J, JRC Ispra (IT);HAANAPPEL V A C, JRC Ispra (IT);SUNDERKÖTTER J D, JRC Ispra (IT)
Bibliographic Reference: Article: Oxidation of Intermetallics (1997)
Record Number: 199711546 / Last updated on: 1997-12-09
Category: PUBLICATION
Original language: en
Available languages: en
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