High temperature mechanical properties of AL-AL4C3 composite produced by mechanical alloying

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00448417" target="_blank" >RIV/68081723:_____/14:00448417 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.12776/ams.v20i3.307" target="_blank" >http://dx.doi.org/10.12776/ams.v20i3.307</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12776/ams.v20i3.307" target="_blank" >10.12776/ams.v20i3.307</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High temperature mechanical properties of AL-AL4C3 composite produced by mechanical alloying

Popis výsledku v původním jazyce

A method of mechanical alloying process is described. It was proved that the transformation efficiency of carbon to Al4C3 by heat treatment of aluminium with the porous furnace black and electrographite at temperatures 723 ? 873 K and time periods 1 - 10hours is higher than that of the hard cracked graphite. The size of Al4C3 dispersed phase was measured on thin foil and it was constant and as small as 30 nm. Subgrain size measured in the range of 100 grains in thin foils depended on the carbon type. It ranged from 0.3 to 0.7 ?m. Mechanical properties were analyzed in a microstructural matrix (after extrusion) as well as in nanomatrix The temperature dependence of ductility, and reduction of area in the temperature range of 623 ? 723 K and strain rateof 10-1 s-1, indicated a considerable increase of properties. In a case when the volume fraction of Al4C3 changes from lower to higher, the grain rotation mechanism dominates instead of the grain boundary sliding. Creep parameters for Al

Název v anglickém jazyce

High temperature mechanical properties of AL-AL4C3 composite produced by mechanical alloying

Popis výsledku anglicky

A method of mechanical alloying process is described. It was proved that the transformation efficiency of carbon to Al4C3 by heat treatment of aluminium with the porous furnace black and electrographite at temperatures 723 ? 873 K and time periods 1 - 10hours is higher than that of the hard cracked graphite. The size of Al4C3 dispersed phase was measured on thin foil and it was constant and as small as 30 nm. Subgrain size measured in the range of 100 grains in thin foils depended on the carbon type. It ranged from 0.3 to 0.7 ?m. Mechanical properties were analyzed in a microstructural matrix (after extrusion) as well as in nanomatrix The temperature dependence of ductility, and reduction of area in the temperature range of 623 ? 723 K and strain rateof 10-1 s-1, indicated a considerable increase of properties. In a case when the volume fraction of Al4C3 changes from lower to higher, the grain rotation mechanism dominates instead of the grain boundary sliding. Creep parameters for Al

Druh

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

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

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

—

Svazek periodika

20

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

15

Strana od-do

326-340

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84921934134