Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102719
Title: Thermodynamics of rapid solidification and crystal growth kinetics in glass-forming alloys
Authors: Galenko, P. K.
Ankudinov, V.
Reuther, K.
Rettenmayr, M.
Salhoumi, A.
Kharanzhevskiy, E. V.
Issue Date: 2019
Publisher: Royal Society Publishing
Citation: Thermodynamics of rapid solidification and crystal growth kinetics in glass-forming alloys / P. K. Galenko, V. Ankudinov, K. Reuther, et al. — DOI 10.1098/rsta.2018.0205 // Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. — 2019. — Vol. 377. — Iss. 2143. — 20180205.
Abstract: Thermodynamic driving forces and growth rates in rapid solidification are analysed. Taking into account the relaxation time of the solute diffusion flux in the model equations, the present theory uses, in a first case, the deviation from local chemical equilibrium, and ergodicity breaking. The second case of ergodicity breaking may exist in crystal growth kinetics of rapidly solidifying glass-forming metals and alloys. In this case, a theoretical analysis of dendritic solidification is given for congruently melting alloys in which chemical segregation does not occur. Within this theory, a deviation from thermodynamic equilibrium is introduced for high undercoolings via gradient flow relaxation of the phase field. A comparison of the present derivations with previously verified theoretical predictions and experimental data is given. This article is part of the theme issue 'Heterogeneous materials: Metastable and nonergodic internal structures'. ©2019 The Author(s) Published by the Royal Society.
Keywords: FAST TRANSFORMATIONS
GLASS TRANSITION
GROWTH OF CRYSTALS
RAPID SOLIDIFICATION
CHEMICAL ANALYSIS
CRYSTAL GROWTH
GLASS
GLASS TRANSITION
GROWTH KINETICS
METALLURGY
THERMODYNAMICS
CHEMICAL SEGREGATION
DENDRITIC SOLIDIFICATION
FAST TRANSFORMATION
GLASS-FORMING ALLOYS
HETEROGENEOUS MATERIALS
LOCAL CHEMICAL EQUILIBRIUM
THERMODYNAMIC DRIVING FORCES
THERMODYNAMIC EQUILIBRIA
RAPID SOLIDIFICATION
URI: http://hdl.handle.net/10995/102719
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85062428510
PURE ID: 9063824
6ff08077-4ac9-457d-8662-54fb94891923
ISSN: 1364503X
DOI: 10.1098/rsta.2018.0205
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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