Fabrication of ODS steels from pre-alloyed powder steel and atomic powders

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Fabrication of ODS steels from pre-alloyed powder steel and atomic powders

Popis výsledku v původním jazyce

This paper describes fabrication of ferritic oxide dispersion strengthened (ODS) steels by mechanical alloying preparation route. The conventional ODS steel of chemical composition 17Cr-1Mo-Y2O3 and low-activation ODS steel of chemical composition 14Cr-2W-Y2O3 were prepared. The 17Cr-1Mo-Y2O3 ODS steel was prepared using commercially available powder steel AISI 434LHC by adding 0.25 wt.% of metallic yttrium. The 14Cr-2W-Y2O3 ODS steel was made from atomic clean powders. Composite powders were alloyed using high-energy planetary ball mill under air and argon atmosphere. During mechanical alloying of composite powders in the air atmosphere cracking of powder particles predominated over alloying and very fine composite powder was prepared. After 12 hourschemically homogenous composite powders were obtained having uniform distribution of particles sizes. Longer mechanical alloying of composite powders led to distinctive plastic deformation which induced development of finer ferritic grain

Název v anglickém jazyce

Fabrication of ODS steels from pre-alloyed powder steel and atomic powders

Popis výsledku anglicky

This paper describes fabrication of ferritic oxide dispersion strengthened (ODS) steels by mechanical alloying preparation route. The conventional ODS steel of chemical composition 17Cr-1Mo-Y2O3 and low-activation ODS steel of chemical composition 14Cr-2W-Y2O3 were prepared. The 17Cr-1Mo-Y2O3 ODS steel was prepared using commercially available powder steel AISI 434LHC by adding 0.25 wt.% of metallic yttrium. The 14Cr-2W-Y2O3 ODS steel was made from atomic clean powders. Composite powders were alloyed using high-energy planetary ball mill under air and argon atmosphere. During mechanical alloying of composite powders in the air atmosphere cracking of powder particles predominated over alloying and very fine composite powder was prepared. After 12 hourschemically homogenous composite powders were obtained having uniform distribution of particles sizes. Longer mechanical alloying of composite powders led to distinctive plastic deformation which induced development of finer ferritic grain

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Multi-scale design of advanced materials

ISBN

978-80-214-5146-9

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

4-10

Název nakladatele

Neuveden

Místo vydání

Neuveden

Místo konání akce

Velké Bílovice

Datum konání akce

28. 5. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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