SNMS and GDOES Studies of the Oxidation Behaviour of TiAl Modified by Niobium Addition.
TiAl-based intermetallic alloys are promising candidates as structural materials for high temperature applications. However, industrial application is hindered by the insufficient oxidation resistance at temperature above 700C in air. In the present syudy the influence of niobium on the high temperature oxidation behaviour at 800C of Ti-48Al-2Cr was investigated. Niobium was added by alloying as well as by ion implantation. The morphology and composition of the scales formed during oxidation were studied by glow discharge optical emission spectroscopy (GDOES) and secondary neutral mass spectrometry (SNMS). The latter technique was also used in combination with two-stage oxidation experiments with isotope tracers.
SUNDERKOETTER Jan Detlef;
GILLILAND Douglas;
JENETT Holger;
1998-05-04
JRC16228
https://publications.jrc.ec.europa.eu/repository/handle/JRC16228,
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