PREPARATION OF FERRITIC 17%Cr ODS STEEL BY MECHANICAL ALLOYING FROM PREALLOYED STEEL POWDER

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU114788" target="_blank" >RIV/00216305:26210/14:PU114788 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081723:_____/14:00435595

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

PREPARATION OF FERRITIC 17%Cr ODS STEEL BY MECHANICAL ALLOYING FROM PREALLOYED STEEL POWDER

Popis výsledku v původním jazyce

The paper describes preparation of 17Cr-1Mo-Y2O3 ODS steel by means of mechanical alloying. The composite powder was prepared from commercially available AISI 434LHC steel powder by adding 0.25 wt.% of metallic yttrium or by adding 0.25 wt.% of yttria using high-energy ball milling in planetary mill under an air and Ar atmosphere. During mechanical alloying of composite powder in air atmosphere cracking of powder particles predominated over alloying and very fine composite powder was prepared having limited formability in green state. Dense samples of 17Cr-1Mo ODS steel having uniform distribution of yttria particles of size up to 10nm were prepared from composite powder alloyed under Ar atmosphere for 12 hours and 24 hours. The ferritic microstructurewith particle size about 1000 nm was prepared from powder milled for 12 hours. Distinctive plastic deformation after 24 hours of milling led to finer ferritic grain structure development having particle size about 500 nm.

Název v anglickém jazyce

PREPARATION OF FERRITIC 17%Cr ODS STEEL BY MECHANICAL ALLOYING FROM PREALLOYED STEEL POWDER

Popis výsledku anglicky

The paper describes preparation of 17Cr-1Mo-Y2O3 ODS steel by means of mechanical alloying. The composite powder was prepared from commercially available AISI 434LHC steel powder by adding 0.25 wt.% of metallic yttrium or by adding 0.25 wt.% of yttria using high-energy ball milling in planetary mill under an air and Ar atmosphere. During mechanical alloying of composite powder in air atmosphere cracking of powder particles predominated over alloying and very fine composite powder was prepared having limited formability in green state. Dense samples of 17Cr-1Mo ODS steel having uniform distribution of yttria particles of size up to 10nm were prepared from composite powder alloyed under Ar atmosphere for 12 hours and 24 hours. The ferritic microstructurewith particle size about 1000 nm was prepared from powder milled for 12 hours. Distinctive plastic deformation after 24 hours of milling led to finer ferritic grain structure development having particle size about 500 nm.

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

<a href="/cs/project/GA14-25246S" target="_blank" >GA14-25246S: Pokročilé ODS oceli pro aplikace v prostředí tavenin těžkých kovů</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Powder Metallurgy Progress

ISSN

1335-8987

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

6

Strana od-do

222-227

Kód UT WoS článku

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EID výsledku v databázi Scopus

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