Simple and precise description of the transformation kinetics and final structure of dual phase steels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F11%3A00449028" target="_blank" >RIV/60162694:G43__/11:00449028 - isvavai.cz</a>

Výsledek na webu

<a href="http://vavtest.unob.cz/registr" target="_blank" >http://vavtest.unob.cz/registr</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Simple and precise description of the transformation kinetics and final structure of dual phase steels

Popis výsledku v původním jazyce

The kinetics of phase transformations is usually described by the Johnson-Mehl-Avrami-Kolmogorov (JMAK) equation. This approach is inaccurate when the conversion is only partial due to insufficient overheating, as the equilibrium fraction of the newly created phase for each temperature can then be calculated as a regression parameter. Moreover, the temperature dependence of the kinetic exponent in the JMAK equation is quite complicated and cannot be expressed by a simple general function. On the contrary, the equation of autoinhibition used for the description of austenitisation kinetics, instead of the JMAK equation, directly gives the equilibrium fraction at partial conversion, and, combined with the Arrhenius equation, it describes transformation kinetics at various temperatures independently of whether the conversion is complete or partial. This paper uses the equation of autoinhibition to describe the kinetics of austenite formation in dual phase steels.

Název v anglickém jazyce

Simple and precise description of the transformation kinetics and final structure of dual phase steels

Popis výsledku anglicky

The kinetics of phase transformations is usually described by the Johnson-Mehl-Avrami-Kolmogorov (JMAK) equation. This approach is inaccurate when the conversion is only partial due to insufficient overheating, as the equilibrium fraction of the newly created phase for each temperature can then be calculated as a regression parameter. Moreover, the temperature dependence of the kinetic exponent in the JMAK equation is quite complicated and cannot be expressed by a simple general function. On the contrary, the equation of autoinhibition used for the description of austenitisation kinetics, instead of the JMAK equation, directly gives the equilibrium fraction at partial conversion, and, combined with the Arrhenius equation, it describes transformation kinetics at various temperatures independently of whether the conversion is complete or partial. This paper uses the equation of autoinhibition to describe the kinetics of austenite formation in dual phase steels.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of International Conference on Military Technologies

ISBN

978-80-7231-787-5

ISSN

—

e-ISSN

—

Počet stran výsledku

10

Strana od-do

1501-1510

Název nakladatele

University of Defence

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

1. 1. 2011

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

—