Study of cerium segregation during solidification of low-carbon 42CrMo4 steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F15%3A86096277" target="_blank" >RIV/61989100:27360/15:86096277 - 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

Study of cerium segregation during solidification of low-carbon 42CrMo4 steel

Popis výsledku v původním jazyce

The influence of cerium addition on solidification structure of the low-carbon 42CrMo4 steel was investigated. Alloys were prepared by means of a centrifugal casting. The addition of up to 0.05 wt. % of Ce in the steel produced greatly improved solidification structure with a suppressed columnar grain zone, finer grain size in the equiaxed grain zone, and zero area fraction of casting shrinkage cavity. The added cerium occurred in the steel both in the form of Ce oxide-sulphide inclusions and as dissolved atomic Ce segregated along with other elements at prior austenite grain boundaries and at interdendritic spacings. Microstructure (light optical microscope, SEM), X-ray EDX chemical microanalysis, and TOF-SIMS analysis (TESCAN) – map ing of elements in the structure of alloys were obtained. Rare-earth metals addition can be considered as a potential solution for grain structure refinement in heavy-weight castings of 42CrMo4 grade steel.

Název v anglickém jazyce

Study of cerium segregation during solidification of low-carbon 42CrMo4 steel

Popis výsledku anglicky

The influence of cerium addition on solidification structure of the low-carbon 42CrMo4 steel was investigated. Alloys were prepared by means of a centrifugal casting. The addition of up to 0.05 wt. % of Ce in the steel produced greatly improved solidification structure with a suppressed columnar grain zone, finer grain size in the equiaxed grain zone, and zero area fraction of casting shrinkage cavity. The added cerium occurred in the steel both in the form of Ce oxide-sulphide inclusions and as dissolved atomic Ce segregated along with other elements at prior austenite grain boundaries and at interdendritic spacings. Microstructure (light optical microscope, SEM), X-ray EDX chemical microanalysis, and TOF-SIMS analysis (TESCAN) – map ing of elements in the structure of alloys were obtained. Rare-earth metals addition can be considered as a potential solution for grain structure refinement in heavy-weight castings of 42CrMo4 grade steel.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

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

METAL 2015 : 24th International Conference on Metallurgy and Materials : conference proceedings : June 3rd-5th 2015, Hotel Voroněž I, Brno, Czech Republic, EU

ISBN

978-80-87294-62-8

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

8

Strana od-do

115-122

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

3. 6. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000374706100015