Crystallographic Features of Phase Transformations in High-Strength Low-Carbon Pipe Steel

Pipe steel 06Mn2MoNb is studied after hot rolling and subsequent heat treatment, i.e., austenitizing at 980°C, 30 min and cooling at different rates. By means of orientation microscopy and crystallographic analysis using various orientation relationships the possibility is demonstrated of creating s...

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Bibliographic Details
Published in:Metal science and heat treatment 2024-09, Vol.66 (5-6), p.259-269
Main Authors: Lobanov, M. L., Satskii, D. D., Urtsev, N. V., Zorina, M. A., Yarkov, V. U.
Format: Article
Language:English
Subjects:
Bainite
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Cooling rate
Crystallography
Engineering Thermodynamics
Heat and Mass Transfer
Heat treatment
Hot rolling
Low carbon steels
Martensite
Martensitic transformations
Materials Science
Metallic Materials
Orientation relationships
Phase transitions
Steel pipes
Structure and Phase Transitions
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Summary:Pipe steel 06Mn2MoNb is studied after hot rolling and subsequent heat treatment, i.e., austenitizing at 980°C, 30 min and cooling at different rates. By means of orientation microscopy and crystallographic analysis using various orientation relationships the possibility is demonstrated of creating structural and textural characteristics based upon transformation products (martensite, bainite) of deformed austenite within the steel. It is shown that the crystallographic texture resulting from a multivariant γ → α-transformation may be explained by α-phase generation at crystallographically ordered boundaries between deformed γ-phase grains.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-024-01045-x