This work has been supported by the Ministry of Higher Education and Science in Poland, project NR15-0121-10. The CADiff2p software is available from the author.
Reactive Mass Transport during the Aluminization of Rene-80†
Article first published online: 7 AUG 2013
© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Chemical Vapor Deposition
Volume 19, Issue 7-8-9, pages 267–273, September 2013
How to Cite
Wierzba, B., Tkacz-Śmiech, K. and Nowotnik, A. (2013), Reactive Mass Transport during the Aluminization of Rene-80. Chem. Vap. Deposition, 19: 267–273. doi: 10.1002/cvde.201307013
- Issue published online: 14 SEP 2013
- Article first published online: 7 AUG 2013
- Manuscript Revised: 29 MAR 2013
- Manuscript Received: 4 JAN 2013
- Material drift;
- Multiphase system;
- Volume continuity equation
A bi-velocity method is used to simulate the element-concentration evolution in the diffusion zone during the aluminization of a Rene-80 nickel-based superalloy. The basis of the method and the detailed calculations are presented. The model enables the prediction of the formation of intermetallic phases and multi-phase layers. The entropy-production rate can also be calculated, and it is shown that it might serve as a basis to indicate the interphases. The proposed model is applied to model the diffusion in a ternary Al-Cr-Ni system. The results of the calculations are compared with experimental element-concentration profiles, measured for the Rene-80 alloy subjected to aluminization by CVD.