THE INFLUENCE OF Cr, Mn AND Mo ELEMENTS ON CRACKS OCCURENCE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F10%3A86077674" target="_blank" >RIV/61989100:27350/10:86077674 - 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

THE INFLUENCE OF Cr, Mn AND Mo ELEMENTS ON CRACKS OCCURENCE

Popis výsledku v původním jazyce

The low - alloyed Cr-Mo based steels are very sensitive to internal crack occurence especially in cases when they are hot rolled from round continuously cast blooms. The scope of the paper is therefore dedicated to the study of microscopic crack mechanism of 25CrMo4 steel variant. We have demonstrated that the crack presence after hot rolling strongly depends on the microstructure composition as well as on the segregation of chromium, manganese and molybdenum content. The main conclusions are supportedby the metallographic analysis that was performed on the surface and in the center of the investigated billet and also the microchemical line analysis carried out with the energy - dispersive X - ray spectroscopy (EDX) to precisely determine the internalsegregation behavior of above mentioned elements. Moreover we have also utilised the microhardness determination of Cr-Mo steels.

Název v anglickém jazyce

THE INFLUENCE OF Cr, Mn AND Mo ELEMENTS ON CRACKS OCCURENCE

Popis výsledku anglicky

The low - alloyed Cr-Mo based steels are very sensitive to internal crack occurence especially in cases when they are hot rolled from round continuously cast blooms. The scope of the paper is therefore dedicated to the study of microscopic crack mechanism of 25CrMo4 steel variant. We have demonstrated that the crack presence after hot rolling strongly depends on the microstructure composition as well as on the segregation of chromium, manganese and molybdenum content. The main conclusions are supportedby the metallographic analysis that was performed on the surface and in the center of the investigated billet and also the microchemical line analysis carried out with the energy - dispersive X - ray spectroscopy (EDX) to precisely determine the internalsegregation behavior of above mentioned elements. Moreover we have also utilised the microhardness determination of Cr-Mo steels.

Druh

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

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

<a href="/cs/project/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regionální materiálově technologické výzkumné centrum</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

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

16

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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