Coatings for Ti-alloys and Ti-aluminides
In general, three different ways to improve oxidation behaviour are possible:
The last option is the preferred choice for developments in the institute as it provides optimal balance between improved oxidation behaviour and maintenance of the mechanical properties of the base material. Examples of such coatings are Al-Ti-Cr layers or nano-structured multilayer made of nitrides/oxides.
Based on the magnetron sputtering technique the major focus is on:
Testing of oxidation protection coatings
To evaluate the potential of the coatings, analytical characterization methods are used. Test rigs are operated ranging from standardised thermocyclic testing, oxidation experiments, to testing the influence of the coatings on the mechanical behaviour of the base materials, e.g. by fatigue tests.