Statistical and theoretical analysis of precipitates in dual-phase steels microalloyed with titanium and their effect on mechanical properties

Statistical and theoretical analysis of precipitates in dual-phase steels microalloyed with titanium and their effect on mechanical properties

Transmission electron microscopy was used to study the precipitation in four different dual-phase steels microalloyed with titanium. TiN, Ti 4C 2S 2 and TiC were characterized. Detailed statistical analysis of hundreds of images of the various Ti compounds fit rather well with thermodynamical calcul...

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Veröffentlicht in:Acta materialia 1999-09, Vol.47 (12), p.3475-3481
Hauptverfasser: Soto, R., Saikaly, W., Bano, X., Issartel, C., Rigaut, G., Charai, A.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
MATERIALS SCIENCE
MECHANICAL PROPERTIES
Metals. Metallurgy
MICROSTRUCTURE
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
PRECIPITATION
Solid-phase precipitation
STEELS
THERMODYNAMIC PROPERTIES
THERMODYNAMICS
TITANIUM ADDITIONS
TRANSMISSION ELECTRON MICROSCOPY
Transmission electron microscopy (TEM)
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Zusammenfassung:Transmission electron microscopy was used to study the precipitation in four different dual-phase steels microalloyed with titanium. TiN, Ti 4C 2S 2 and TiC were characterized. Detailed statistical analysis of hundreds of images of the various Ti compounds fit rather well with thermodynamical calculations and they show TiC particles (approximately 10 nm) to be the most dominant factor in strengthening.
ISSN:1359-6454
1873-2453
DOI:10.1016/S1359-6454(99)00190-1