For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
The Impact of the Organic Form of Sulphur Originating from Coal on the Performance of Solid Oxide Fuel Cells
p.341
Oxidation Behavior of Aluminide Coated Ti-Al-Cr-Nb-Zr-Y Alloys at High Temperatures
p.345
Degradation of Diffusive Aluminide Coating after Service in ZhS6K Superalloy
p.349
Hafnium Modified Aluminide Coatings Obtained by the CVD and PVD Methods
p.353
The Influence of Activator on Vapour Phase Aluminizing of TiAl Intermetallics
p.357
The Oxidation Resistance of Nonmodified and Zr-Modified Aluminide Coatings Deposited by the CVD Method
p.361
The Influence of the Chemical Composition of Superalloys on the Oxidation Resistance of Aluminide Coating
p.365
Influence of Deposition Parameters on Structure of TDCs Deposited by PS-PVD Method
p.369
Microstructure of TBC Coatings Deposited by HVAF and PS-PVD Methods
p.373

The Influence of Activator on Vapour Phase Aluminizing of TiAl Intermetallics

Article Preview

Abstract:

The paper presents results of research into the aluminizing process of TiAl intermetallics. The substrate was Ti48Al2Cr2Nb intermetallic alloy. The BPX Pro 325S CVD system was used for aluminizing process. Used in the experimental were four types of activators: AlCl3, AlF3, ZrCl4 and HfCl4. During the aluminizing process 2 kg of Al-Cr granules were put in a container. The deposition process was carried out in argon atmosphere for a duration of 4 hours at the temperature of 1000°C. The XRD and chemical analysis were conducted. The results showed than aluminide coatings contained TiAl2 and TiAl2 phases were formed using an AlF3 activator. In other processes the amount of Al in the coatings was smaller than in the substrate. The obtained results showed that for the aluminizing process use of aluminum fluorides is necessary.

You might also be interested in these eBooks
Corrosion and Surface Engineering View Preview

Info:

Periodical:

Solid State Phenomena (Volume 227)

Pages:

357-360

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.227.357

Citation:

Cite this paper

Online since:

January 2015

Authors:

Marek Goral*, Andrzej Gradzik, Jan Sieniawski, Ryszard Filip, Jan Sieniawski, Małgorzata Wierzbinska

Keywords:

Aluminide Coatings, Halide Activators, Intermetallic, Oxidation Resistance, Vapour Phase Aluminizing

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] C. Leyens, R. Braun, M. Frohlich, P. Eh. Hovespian, JoM-J. Min. Met. Mat. S. 58 (2006) 17-21.

Google Scholar

[2] V. Gauthier, F. Dettenwagner, M. Shutze, V. Shemet, W.J. Quadakkers, Oxid. Met., 59(3-4) (2003) 233-255.

Google Scholar

[3] M. Góral, G. Moskal, L. Swadźba, J. Achiev. Mater. Manufact. Eng., 20(1-2) (2007) 443-446.

Google Scholar

[4] Z.D. Xiang, S. Rose, P.K. Datta, Surf. Coat. Tech. 161 (2002) 286-292.

Google Scholar

[5] G.H. Jung, K.Y. Kim, Oxid. Met. 58(1-2) (2002) 198-216.

Google Scholar

[6] Ch. Zhou, H. Xu, S. Gong, Y. Yang, K.Y. Kim, Surf. Coat. Tech. 132(2-3) (2000) 117-123.

Google Scholar

[7] G.H. Jung, D.J. Jung, K.Y. Kim, Surf. Coat. Tech. 154 (2002) 75-81.

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.