Effect of Ti on Phase Transformation and Grain Evolution in Nb/v Microalloyed Steel
Abstract
Low-carbon Nb/V microalloyed steels are extensively used for pipeline construction due to a good combination of mechanical properties and weldability. Austenite/ferrite transformation and grain size evolution during cooling after hot rolling is pivotal to obtaining desired properties. in this study, phase transformation and grain size evolution in two as-cast Nb/V microalloyed low-carbon steels billets were investigated with and without Ti additions, utilizing a quenching dilatometer. Significant ferrite grain morphology changes were observed in Ti-added steel at 10 and 1°C/s cooling rates. Mechanisms of observed changes were discussed and compared with thermodynamic/kinetic predictions.
Recommended Citation
B. Saha et al., "Effect of Ti on Phase Transformation and Grain Evolution in Nb/v Microalloyed Steel," AISTech - Iron and Steel Technology Conference Proceedings, pp. 1697 - 1705, Association for Iron and Steel Technology, Jan 2024.
The definitive version is available at https://doi.org/10.33313/388/177
Department(s)
Materials Science and Engineering
Second Department
Mechanical and Aerospace Engineering
Keywords and Phrases
Acicular Ferrite; Bainite Phase Transformation; Dilatometry; Pinning Agent; Quasi-Ferrite
International Standard Book Number (ISBN)
978-093076725-9
International Standard Serial Number (ISSN)
1551-6997
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2025 Association for Iron and Steel Technology, All rights reserved.
Publication Date
01 Jan 2024
Comments
Medical Research Council, Grant None