| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1499335 | Scripta Materialia | 2012 | 4 Pages |
Abstract
The structure and stability of Nb(C,N) precipitates were direct observed during reheating of an austenitic heat-resistant steel using in situ hybrid observations. The coarsened δ-Nb(C,N) and finer ε-Nb(C,N) were present in as-received steel. During the coarsening process, the d-spacing of cubic δ-Nb(C,N) exhibits a sharp decrease with increasing temperature, while that of hexagonal ε-Nb(C,N) maintains a steady increase. Compared to δ-Nb(C,N), the ε-Nb(C,N) was quickly dissolved into the austenite during heating, and it would no longer reprecipitate in the subsequent cooling.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
X.F. Zhang, H. Terasaki, Y. Komizo,