A thermokinetic model for Mg-Si couple formation in Al-Mg-Si alloys

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00464046" target="_blank" >RIV/68081723:_____/16:00464046 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0965-0393/24/3/035021" target="_blank" >http://dx.doi.org/10.1088/0965-0393/24/3/035021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0965-0393/24/3/035021" target="_blank" >10.1088/0965-0393/24/3/035021</a>

Result language

angličtina

Original language name

A thermokinetic model for Mg-Si couple formation in Al-Mg-Si alloys

Original language description

Mg-Si couples formed from atomic Mg and Si represent the first step in Mg-Si cluster formation in a dilute Al-Mg-Si system. Based on the thermodynamic extremal principle, a kinetic model for Mg-Si couple formation is developed. The model utilizes the trapping concept for the calculation of Gibbs energy of the non-equilibrium system and provides a generalized (multiplicative) form of the Oriani equation for description of the equilibrium state. The dissipation in the system accounts for diffusion of both Mg and Si atoms in the lattice. The model is compared with the classical Lidiard and Howard equilibrium theory. Some demonstrative examples are presented. Finally the model is applied to an experimentally studied system. Good quantitative agreement with quenching experiments is obtained, if, simultaneously, the impact of excess quenched-in vacancies and their gradual annihilation in the system, which has been already treated in a previous paper, are accounted for. The model is generally applicable for any couple (and pair) formation.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BJ - Thermodynamics

OECD FORD branch

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Project

<a href="/en/project/GA14-24252S" target="_blank" >GA14-24252S: Preparation and Optimization of Creep Resistant Submicron-Structured Composite with Fe-Al Matrix and Al2O3 Particles</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Modelling and Simulation in Materials Science and Engineering

ISSN

0965-0393

e-ISSN

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Volume of the periodical

24

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

16

Pages from-to

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UT code for WoS article

000372347800021

EID of the result in the Scopus database

2-s2.0-84962253467