Nonequilibrium Thermodynamic Model of Diffusionless Transformation of an Austenite in Alloys on the Base of Iron
S. V. Bobyr
Z. I. Nekrasov Iron and Steel Institute, NAS of Ukraine, 1 Academician Starodubov Sq., 49050 Dnipro, Ukraine
Received: 24.04.2018. Download: PDF
Nonequilibrium thermodynamic model of diffusionless transformation of an austenite in iron and alloys based on it is developed, taking into account internal stresses in the system. Onsager motion equations for a model thermodynamic system describing a diffusionless transformation and kinetic equations for changing deformations and growth rates of the $\alpha$-phase are found. A scheme of diffusionless transformations of austenite is constructed, including the normal and martensitic transformations as limiting cases.
Key words: nonequilibrium thermodynamics, diffusionless transformation, equations of motion, iron-based alloys, austenite.
PACS: 05.70.Ln, 64.60.Ej, 64.70.kd, 64.75.Op, 66.30.Fq, 81.10.Jt, 81.30.Kf
Citation: S. V. Bobyr, Nonequilibrium Thermodynamic Model of Diffusionless Transformation of an Austenite in Alloys on the Base of Iron, Metallofiz. Noveishie Tekhnol., 40, No. 11: 1437—1451 (2018) (in Russian)