Effect of thermomechanical treatment modes on structural-phase states and mechanical properties of metastable austenitic steel

The features of the structural-phase states and mechanical properties of metastable austenitic steel after thermomechanical treatments have been investigated. It is shown that low-temperature and subsequent deformation in the temperature range 300-773 K contributes to the direct (γ → α')-marten...

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Bibliographic Details
Published in:AIP Conference Proceedings Vol. 1783. P. 020001-1-020001-4
Other Authors: Akkuzin, Sergey A., Polekhina, Nadezhda A., Tyumentsev, Alexander N., Litovchenko, Igor Yu
Format: Article
Language:English
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Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000623338
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Summary:The features of the structural-phase states and mechanical properties of metastable austenitic steel after thermomechanical treatments have been investigated. It is shown that low-temperature and subsequent deformation in the temperature range 300-773 K contributes to the direct (γ → α')-martensitic transformation. The combination of low-temperature, subsequent warm deformation at 873 K and annealing at 1073 K leads to the direct (γ → α')- and reverse (α' → γ)-martensitic transformations. As a result of thermomechanical treatments submicrocrystalline two-phase structural states with high strength properties (σ0.1 ≈ 1160-1350 MPa) are formed.
Bibliography:Библиогр.: 7 назв.
ISSN:0094-243X