Implantation of Y- and Hf-ions into a F-doped Ni-base superalloy improving the oxidation resistance at high temperatures

H.-E. Zschau, F. King, M.C. Galetz, M. Schütze

The surface modification of Ni-base alloys with low Al-contents (between 2 and 5 wt.%) with fluorine leads to the formation of a protective alumina scale under high temperature service conditions. The combined implantation of fluorine and reactive elements (Y, Hf) can increase the adherence of this alumina scale needed for technical applications.

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