Abnormal grain growth: a non-equilibrium thermodynamic model for multi-grain binary systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00434270" target="_blank" >RIV/68081723:_____/14:00434270 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/0965-0393/22/1/015013" target="_blank" >http://dx.doi.org/10.1088/0965-0393/22/1/015013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0965-0393/22/1/015013" target="_blank" >10.1088/0965-0393/22/1/015013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Abnormal grain growth: a non-equilibrium thermodynamic model for multi-grain binary systems

Popis výsledku v původním jazyce

Abnormal grain growth as the abrupt growth of a group of the largest grains in a multi-grain system is treated within the context of unequal retardation of grain growth due to the segregation of solute atoms from the bulk of the grains into the grain boundaries. During grain boundary migration, the segregated solute atoms are dragged under a small driving force or left behind the migrating grain boundary under a large driving force. Thus, the solute atoms in the grain boundaries of large grains, exhibiting a large driving force, can be released from the grain boundary. The mobility of these grain boundaries becomes significantly higher and abnormal grain growth is spontaneously provoked. The mean-field model presented here assumes that each grain is described by its grain radius and by its individual segregation parameter. The thermodynamic extremal principle is engaged to obtain explicit evolution equations for the radius and segregation parameter of each grain. Simulations of grain g

Název v anglickém jazyce

Abnormal grain growth: a non-equilibrium thermodynamic model for multi-grain binary systems

Popis výsledku anglicky

Abnormal grain growth as the abrupt growth of a group of the largest grains in a multi-grain system is treated within the context of unequal retardation of grain growth due to the segregation of solute atoms from the bulk of the grains into the grain boundaries. During grain boundary migration, the segregated solute atoms are dragged under a small driving force or left behind the migrating grain boundary under a large driving force. Thus, the solute atoms in the grain boundaries of large grains, exhibiting a large driving force, can be released from the grain boundary. The mobility of these grain boundaries becomes significantly higher and abnormal grain growth is spontaneously provoked. The mean-field model presented here assumes that each grain is described by its grain radius and by its individual segregation parameter. The thermodynamic extremal principle is engaged to obtain explicit evolution equations for the radius and segregation parameter of each grain. Simulations of grain g

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BJ - Termodynamika

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Modelling and Simulation in Materials Science and Engineering

ISSN

0965-0393

e-ISSN

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Svazek periodika

22

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

"Art. No. 015013"

Kód UT WoS článku

000330035800013

EID výsledku v databázi Scopus

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