Laboratorní simulace tepelného zpracování kolejnic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F07%3A00016272" target="_blank" >RIV/61989100:27360/07:00016272 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Laboratory simulation of heat treatment of rails

Popis výsledku v původním jazyce

This paper is concerned with heat treatment of rails. Increasing axial forces acting on rails have become a fact, to which the rail manufacturers have to adapt. Fundamental parameters of rail steel life (wear resistance, resistance to contact failures and low-temperature brittle fracture) are related to basic strength and plasticity properties (yield strength, ultimate strength, elongation, reduction of area). These properties are influenced by microstructural parameters of pearlite: namely the pearlitecolony size, interlamellar spacing and cementite volume fraction. It is possible to modify these either by changing the chemical composition of the steel or by heat treatment of the rail head. Both the metallurgical and technological aspects of the issue are discussed here. The practically-focused section of the paper provides description of a laboratory experiment involving measurements of cooling curves for two cooling equipment configurations. 11 thermocouples inserted in drilled hol

Název v anglickém jazyce

Laboratory simulation of heat treatment of rails

Popis výsledku anglicky

This paper is concerned with heat treatment of rails. Increasing axial forces acting on rails have become a fact, to which the rail manufacturers have to adapt. Fundamental parameters of rail steel life (wear resistance, resistance to contact failures and low-temperature brittle fracture) are related to basic strength and plasticity properties (yield strength, ultimate strength, elongation, reduction of area). These properties are influenced by microstructural parameters of pearlite: namely the pearlitecolony size, interlamellar spacing and cementite volume fraction. It is possible to modify these either by changing the chemical composition of the steel or by heat treatment of the rail head. Both the metallurgical and technological aspects of the issue are discussed here. The practically-focused section of the paper provides description of a laboratory experiment involving measurements of cooling curves for two cooling equipment configurations. 11 thermocouples inserted in drilled hol

Druh

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

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Acta Metallurgica Slovaca

ISSN

1335-1532

e-ISSN

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Svazek periodika

13

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

6

Strana od-do

583-588

Kód UT WoS článku

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EID výsledku v databázi Scopus

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