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Ion Implantation as a tool to study the oxidation behaviour of TiAl-based intermetallics

✍ Scribed by Dr. M. F. Stroosnijder; Dr. H. J. Schmutzler; Dr. V. A. C. Haanappel; Dr. J. D. Sunderkötter

Publisher
John Wiley and Sons
Year
1997
Tongue
German
Weight
972 KB
Volume
48
Category
Article
ISSN
0947-5117

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✦ Synopsis

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‐γ Ti‐48Al‐2Cr and Ti‐48Al‐2Cr‐2Nb (compositions are given in at‐%) in air at 800°C has been studied. Ions implanted (10^17^ Ions/Cm^2^) were Al, Ti, Cr, Mo, Y, Mn, Pt, Nb, and Si in case of Ti‐48Al‐2Cr and Nb in case of Ti‐48Al‐2Cr‐2Nb. Comparison was made with the oxidation behaviour of Ti‐48Al2Cr‐2Nb and Ti‐47Al‐2Cr‐0.2Si alloys in which quaternary 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.

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