Oxidation of TiAl Alloys Coated by Fluorine Resin in SO2 Containing Atmosphere

Aleksander Gil; Zbigniew Żurek; Adam Stawiarski

doi:10.4028/www.scientific.net/MSF.654-656.562

Paper Titles

Formation of Protective Intermediate Phase in Ta Addition TiAl during High Temperature Oxidation
p.546

Cobalt-Based Alloys for High Temperature Applications
p.550

Study of a New Type High Strength Ni-Based Superalloy DZ468 with Good Hot Corrosion Resistance
p.554

Oxidation Resistance of Innovative Carbon-Based Materials Results of ExtreMat
p.558

Oxidation of TiAl Alloys Coated by Fluorine Resin in SO₂ Containing Atmosphere
p.562

High-Temperature Sulfurization of Crofer 22APU in H₂/H₂S Atmosphere
p.566

High Temperature Alloys from Nb-Cr-Si System with Minor Additions
p.570

Thixomolded® and Thermomechanically Processed Fine-Grained Magnesium Alloys
p.574

Development of the Microstructure and Texture of RE Containing Magnesium Alloys during Hot Rolling
p.580

HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Oxidation of TiAl Alloys Coated by Fluorine Resin...

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.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 654-656)

Pages:

562-565

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.562

Citation:

Cite this paper

Online since:

June 2010

Authors:

Aleksander Gil, Zbigniew Żurek, Adam Stawiarski

Keywords:

Halogen Effect, Intermetallic, Oxidation Resistance, SO₂, TiAl

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] M. Kumagai, K. Shibue, M.S. Kim and M. Yonemitsu, Intermetallics vol. 4 (1996), p.557.

Google Scholar

[2] M. Schütze and M. Hald, Mater. Sci. Eng. vol. A239-240 (1997), p.847.

Google Scholar

[3] A. Gil, A. Stawiarski, A. Kuc, W. J. Quadakkers and Z. Żurek, The oxidation of TiAl-Ag alloys with refractory metal additions in atmospheres contained SO2 at 800ºC, Corrosion & Prevention -2004, 21-24 Nov. 2004, Australia, Conference Proceedings ISNN 1442-0139.

Google Scholar

[4] M. Homa, Z. Żurek, A. Stawiarski, J. Żurek, A. Gil, A. Rakowska and J. Jedliński, Mater. Sci. Forum vol. 461-464 (2004), p.131.

Google Scholar

[5] L. Xin, G. Shao, F. Wang, P. Tsakiropoulos and T. Li, Intermetallics vol. 11 (2003), p.651.

Google Scholar