Development of advanced Fe–Al–O ODS alloynmicrostructure and properties due to heat treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00534784" target="_blank" >RIV/68081723:_____/20:00534784 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.cambridge.org/core/journals/journal-of-materials-research/article/abs/development-of-advanced-fealo-ods-alloy-microstructure-and-properties-due-to-heat-treatment/A3DE7A6CED71C31F834E96316FFAA7B9" target="_blank" >https://www.cambridge.org/core/journals/journal-of-materials-research/article/abs/development-of-advanced-fealo-ods-alloy-microstructure-and-properties-due-to-heat-treatment/A3DE7A6CED71C31F834E96316FFAA7B9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1557/jmr.2020.278" target="_blank" >10.1557/jmr.2020.278</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Development of advanced Fe–Al–O ODS alloynmicrostructure and properties due to heat treatment

Popis výsledku v původním jazyce

Fe–Al–O ODS alloy prepared via mechanical alloying was subjected to three different heat treatments. Materialnbasic state exhibited a fine-grained (300–500 nm) microstructure with fine dispersion of aluminum oxide particlesn(60% up to 20 nm). Heat treatment at 1100 °C for 3 h resulted in local grain and particles coarsening.nProlongation of the heat treatment to 24 h resulted in further grain (50 % up to 5 μm) and particle (25 % withnsize 25–40 nm) coarsening. Annealing at 1200 °C for 24 h led to a bimodal microstructure (35 % of grains withnsize 100–250 μm and 45 % of particles with size 30–60 nm) and substantial oxide particle coarsening.nMicrostructural changes resulted in tensile strength decrease and ductility increase. Tensile tests at 800 °Cnrevealed a 90% decrease of tensile strength while ductility increased 4–6 times when compared to the roomntemperature tests. The hardening ratio was below 10 % for all the alloys and both test temperatures.

Název v anglickém jazyce

Development of advanced Fe–Al–O ODS alloynmicrostructure and properties due to heat treatment

Popis výsledku anglicky

Fe–Al–O ODS alloy prepared via mechanical alloying was subjected to three different heat treatments. Materialnbasic state exhibited a fine-grained (300–500 nm) microstructure with fine dispersion of aluminum oxide particlesn(60% up to 20 nm). Heat treatment at 1100 °C for 3 h resulted in local grain and particles coarsening.nProlongation of the heat treatment to 24 h resulted in further grain (50 % up to 5 μm) and particle (25 % withnsize 25–40 nm) coarsening. Annealing at 1200 °C for 24 h led to a bimodal microstructure (35 % of grains withnsize 100–250 μm and 45 % of particles with size 30–60 nm) and substantial oxide particle coarsening.nMicrostructural changes resulted in tensile strength decrease and ductility increase. Tensile tests at 800 °Cnrevealed a 90% decrease of tensile strength while ductility increased 4–6 times when compared to the roomntemperature tests. The hardening ratio was below 10 % for all the alloys and both test temperatures.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Research

ISSN

0884-2914

e-ISSN

—

Svazek periodika

35

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

2789-2797

Kód UT WoS článku

000595594900015

EID výsledku v databázi Scopus

2-s2.0-85094947750