Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7913431 | Scripta Materialia | 2015 | 4 Pages |
Abstract
Using a CALPHAD approach together with a Cahn-Hilliard model, we describe the microstructure evolution in cubic Ti1âxAlxN including vacancies on the metal sublattice. Our results show that vacancy content has a pronounced effect on the decomposition kinetics. Furthermore, vacancies show a strong tendency to segregate to the coherent AlN-TiN interface regions. We illustrate how vacancies anneal to grain boundaries, and finally, we compare our prediction to experimental differential scanning calorimetry data and attribute the second peak in the thermogram to vacancy depletion.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
K. Grönhagen, J. Ã
gren, M. Odén,