Carbide Precipitation in Austenite of a Titanium-Tungsten-Bearing Low-Carbon Steel

Carbide Precipitation in Austenite of a Titanium-Tungsten-Bearing Low-Carbon Steel

In this study, the carbide precipitation at 925 °C in austenite ( γ ) of a 0.04C–1.5Mn–0.10Ti–0.39 W (wt%) low-carbon steel was investigated by stress relaxation (SR) high-resolution transmission electron microscopy and atom probe tomography. First-principles calculations were employed to reveal the...

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Veröffentlicht in:Acta metallurgica sinica : English letters 2022-07, Vol.35 (7), p.1090-1102
Hauptverfasser: Zhou, Yanyuan, Wang, Zhenqiang, Dong, Haokai, Jiang, Fengchun
Format: Artikel
Sprache:eng
Schlagworte:
Austenite
Carbon
Carbon content
Characterization and Evaluation of Materials
Chemistry and Materials Science
Core-shell structure
Corrosion and Coatings
Crystal lattices
Crystal structure
First principles
High resolution electron microscopy
Iron
Low carbon steels
Materials Science
Mathematical analysis
Metallic Materials
Nanotechnology
Nucleation
Organometallic Chemistry
Particle size
Precipitation hardening
Spectroscopy/Spectrometry
Steel
Stress relaxation
Titanium carbide
Tomography
Transmission electron microscopy
Tribology
Ultrafines
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Zusammenfassung:In this study, the carbide precipitation at 925 °C in austenite ( γ ) of a 0.04C–1.5Mn–0.10Ti–0.39 W (wt%) low-carbon steel was investigated by stress relaxation (SR) high-resolution transmission electron microscopy and atom probe tomography. First-principles calculations were employed to reveal the precipitation mechanism. Results indicate that a high dispersion of W- and Fe-rich M C-type ultrafine carbides (
ISSN:1006-7191
2194-1289
DOI:10.1007/s40195-021-01344-9