Paper Title:
Oxidation of TiAl Alloys Coated by Fluorine Resin in SO2 Containing Atmosphere
  Abstract

There are several ways to improve the oxidation resistance of TiAl alloys. One of them is alloying with elements such as Nb, Ta, W, Si, Ag, Zr or Hf. However, bulk alloying influences the mechanical properties. Surface treatment of TiAl alloys by the small amounts of halogens leads to the formation of the protective alumina scale (“halogen effect”). The halogens can be applied by ion techniques (ion implantation, plasma immersion implantation) but also by spraying or dipping with halogen-containing inorganic and organic compounds. Deposition of the fluorine-containing resin on the surface of TiAl alloys is the easiest way to achieve the best results. SO2 impurity in air significantly influences oxidation behavior of TiAl alloys. In this work the results of the oxidation of a Ti-48Al-2Cr alloy coated with a fluorine-containing resin in the synthetic air and air containing 1% SO2 were presented. The oxidation runs were carried out in the temperature range 800-1000°C.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
562-565
DOI
10.4028/www.scientific.net/MSF.654-656.562
Citation
A. Gil, Z. Żurek, A. Stawiarski, "Oxidation of TiAl Alloys Coated by Fluorine Resin in SO2 Containing Atmosphere", Materials Science Forum, Vols. 654-656, pp. 562-565, 2010
Online since
June 2010
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$32.00
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