Effect of carbonitride particles formed in austenite on the strength of microalloyed steels

Precipitation strengthening from two different carbonitride populations was investigated in a niobium and vanadium microalloyed hot-rolled steel. Interphase precipitation as well as carbonitride particles formed in austenite were found to contribute to precipitation strengthening. After normalizing,...

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Veröffentlicht in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2004-02, Vol.367 (1), p.317-321
Hauptverfasser:	Sobral, M.D.C., Mei, P.R., Kestenbach, H.-J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbonitride precipitation Cross-disciplinary physics: materials science rheology Electron microscopy Exact sciences and technology Materials science Microalloyed steels Normalizing Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Precipitation Precipitation strengthening Solid-phase precipitation Thermornechanical processing
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Beschreibung
Zusammenfassung:	Precipitation strengthening from two different carbonitride populations was investigated in a niobium and vanadium microalloyed hot-rolled steel. Interphase precipitation as well as carbonitride particles formed in austenite were found to contribute to precipitation strengthening. After normalizing, austenite precipitation strengthening remained effective while the strengthening contribution of interphase precipitation was strongly reduced.
ISSN:	0921-5093 1873-4936
DOI:	10.1016/j.msea.2003.10.280