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Abstract

The effect of various elements added by ion implantation on the isothermal (up to 150 h) and cyclic (up to 1500 h) oxidation behaviour of y-TiAl based intermetallic alloys at 800 and 900 C in air has been discussed. It was concluded that the ion implantation technique can be employed as a screening test for evaluating the effect of possible alloying additions. As a follow up this technique was used as a research tool to study the effect of Nb, Pt, Th, Si, Ta and W on the oxidation behaviour of two types of niobium-bearing TiAl-based intermetallic alloys (Ti-48A1-2Cr-2Nb and Ti-48A1-2Mn-2Nb) at 900 C in air.

Additional information

Authors: HAANAPPEL V A C, JRC Ispra (IT);STROOSNIJDER M F, JRC Ispra (IT)
Bibliographic Reference: Paper presented: 12th International Conference on Surface Modification Technologies, Illinois (US), October 12-15, 1998
Availability: Available from (1) as Paper EN 41555 ORA
Record Number: 199810965 / Last updated on: 1998-09-01
Category: PUBLICATION
Original language: en
Available languages: en