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Physics of Metals and Metallography
Erschienen in: Physics of Metals and Metallography 14/2021

18.08.2021 | STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION

Development of Ultrafine Grain Structure during Deformation-Thermal Treatment of Austenitic Manganese Steel

verfasst von: Z. Afshari, E. Ahmadi, S. Hossein Nedjad

Erschienen in: Physics of Metals and Metallography | Ausgabe 14/2021

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Abstract

The use of grain refinement methods to improve both strength and toughness of austenitic manganese steels has increased gradually. In this study, a different thermal treatment processing was used to stimulate the formation of ultrafine austenite grains in Fe–0.9% C–14.5% Mn steel with average grain sizes in the range of 60–90 μm. The process involves homogenization, hot rolling, solution treatment, cold rolling, and annealing respectively. Optical microscopy, scanning electron microscopy, X-ray diffraction, and tensile test were used to analyze the microstructure and mechanical properties of specimens. It was found that 50% cold rolling and static annealing at 700 and 750°C for 1 h exhibited ultrafine grained structure with bimodal grain size distribution and dispersive carbide particles. The optimum condition of a significant grain refined structure with improved mechanical properties was obtained after annealing for 1 h at 750°C.
Vorheriger Artikel Effect of Minor Sc and Zr Addition on the Microstructure of 7075 Aluminum Alloy during Homogenization Treatment Process
Nächster Artikel A Novel Refractory High Entropy Alloy CrHfNbZrTa0.5: Phase Analysis, Microstructure, and Compressive Properties

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Metadaten
Titel
Development of Ultrafine Grain Structure during Deformation-Thermal Treatment of Austenitic Manganese Steel
verfasst von
Z. Afshari
E. Ahmadi
S. Hossein Nedjad
Publikationsdatum
18.08.2021
Verlag
Pleiades Publishing
Erschienen in
Physics of Metals and Metallography / Ausgabe 14/2021
Print ISSN: 0031-918X
Elektronische ISSN: 1555-6190
DOI
https://doi.org/10.1134/S0031918X21140027

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