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| Title:
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Atomic resolution imaging of precipitate transformation from cubic TaN to tetragonal CrTaN |
| Type:
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Journal articleJournal article |
| Participant(s):
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Technical University of Denmark
Email:
Technical University of Denmark
Email:
Technical University of Denmark
Email:
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| Abstract:
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In 9–12% Cr creep-resistant steels Cr(V,Nb,Ta)N Z-phase is known to replace metastable (V,Nb,Ta)N MN precipitates at high temperatures. The precipitation process of Z-phase does not follow the classical nucleation theory, where dissolving MN particles provide constituents for Z-phase nucleation in the matrix. Using atomic resolution transmission electron microscopy, the current work demonstrates that metastable cubic TaN precipitates in a complex steel gradually transform compositionally and crystallographically into stable tetragonal CrTaN precipitates under the influence of Cr indiffusion from the steel matrix. |
| Published:
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in journal: Scripta Materialia (ISSN: 1359-6462) (DOI: http://dx.doi.org/10.1016/j.scriptamat.2011.11.005), vol: 66, issue: 5, pages: 261-264, 2012 |
| DOI:
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