Abstract
Z-phase precipitation in two model alloys, 12CrVNbN and 12CrVN, has been investigated. The alloys were aged up to 104 h and their precipitate evolution was followed by X-ray diffraction and transmission electron microscopy. The formation rate of Z-phase from vanadium-based nitrides, (V,Nb)N, in the Nb-containing alloy was observed to proceed considerably faster than in the Nb-free alloy. A hypothesis is put forward that explains the enhanced stability of VN in terms of changes in the interfacial energy of VN with
the ferrite matrix.
Original language | English |
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Journal | Scripta Materialia |
Issue number | 63 |
Pages (from-to) | 324-327 |
ISSN | 1359-6462 |
DOIs | |
Publication status | Published - 2010 |
Keywords
- TEM
- Nitrides
- Creep-resistant steels
- XRD