Behaviour of selected rare-earth metals at the crystallization of 42CrMo4 steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F15%3A86096278" target="_blank" >RIV/61989100:27360/15:86096278 - 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

Behaviour of selected rare-earth metals at the crystallization of 42CrMo4 steel

Popis výsledku v původním jazyce

Rare-earth metals (REM) such as cerium and lanthanum are powerful deoxidising and desulphurising agents in steels. They are particularly attractive because they have boiling points that are high enough to allow their retention in solution in liquid steelto react with oxygen and sulphur according to thermodynamic and kinetic considerations. Oxygen content needs to be minimised, REM sulphide particles may be formed as opposed to cerium oxides. However, as much sulphur as possible requires to be retainedin the steel in order to achieve a high density of fine particles. The influence of cerium and praseodymium addition on solidification structure of the low-carbon 42CrMo4 steel was investigated. Alloys were prepared by means of a centrifugal casting. Theaddition of Ce or Pr in the steel (amount 0.1 wt.%) produced greatly improved solidification structure with a suppressed columnar grain zone, finer grain size in the equiaxed grain zone. The added REM occurred in the steel both in the fo

Název v anglickém jazyce

Behaviour of selected rare-earth metals at the crystallization of 42CrMo4 steel

Popis výsledku anglicky

Rare-earth metals (REM) such as cerium and lanthanum are powerful deoxidising and desulphurising agents in steels. They are particularly attractive because they have boiling points that are high enough to allow their retention in solution in liquid steelto react with oxygen and sulphur according to thermodynamic and kinetic considerations. Oxygen content needs to be minimised, REM sulphide particles may be formed as opposed to cerium oxides. However, as much sulphur as possible requires to be retainedin the steel in order to achieve a high density of fine particles. The influence of cerium and praseodymium addition on solidification structure of the low-carbon 42CrMo4 steel was investigated. Alloys were prepared by means of a centrifugal casting. Theaddition of Ce or Pr in the steel (amount 0.1 wt.%) produced greatly improved solidification structure with a suppressed columnar grain zone, finer grain size in the equiaxed grain zone. The added REM occurred in the steel both in the fo

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

XIII Rossijsko-Kitajskij sympozium s elementami naučnoj školy dlja moloděži "Novyje materialy i technologii": NMT 2015 : 21-25 sentjabrja 2015 g., g. Kazan', Respublika Tatarstan, Rossija

ISBN

978-5-902063-53-7

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

803-808

Název nakladatele

TOO Interkontakt nauka

Místo vydání

Moskva

Místo konání akce

Kazaň

Datum konání akce

21. 9. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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