Response of Hot-Extruded Al-Mn-Sc-Zr Alloy to Annealing with Constant Heating Rate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10188999" target="_blank" >RIV/00216208:11320/13:10188999 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.334-335.161" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/DDF.334-335.161</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.334-335.161" target="_blank" >10.4028/www.scientific.net/DDF.334-335.161</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Response of Hot-Extruded Al-Mn-Sc-Zr Alloy to Annealing with Constant Heating Rate

Popis výsledku v původním jazyce

The effect of hot extrusion at 350 degrees C on microstructure, thermal, electrical and mechanical properties of the AlMnScZr alloy was studied. The samples of the cast and of the hot-extruded alloys were annealed from 20 degrees C up to 600 degrees C. Transmission and scanning electron microscopy and electron backscatter diffraction examinations of specimens quenched from temperatures of significant resistivity changes were used to identify microstructural processes responsible for these changes. The cast as well as hot-extruded alloy is characterized by a dispersion of fine coherent Al3Sc and/or Al3(Sc,Zr) particles, and furthermore the fine (sub)grain structure was observed in the hot-extruded alloy. Microhardness HV1 and resistivity values reflectdifferent microstructure of the alloys accordingly. The distinct resistivity changes of the alloys are mainly caused by precipitation of Mn-containing particles. The apparent activation energy for the Al6Mn-phase precipitation in the hot-

Název v anglickém jazyce

Response of Hot-Extruded Al-Mn-Sc-Zr Alloy to Annealing with Constant Heating Rate

Popis výsledku anglicky

The effect of hot extrusion at 350 degrees C on microstructure, thermal, electrical and mechanical properties of the AlMnScZr alloy was studied. The samples of the cast and of the hot-extruded alloys were annealed from 20 degrees C up to 600 degrees C. Transmission and scanning electron microscopy and electron backscatter diffraction examinations of specimens quenched from temperatures of significant resistivity changes were used to identify microstructural processes responsible for these changes. The cast as well as hot-extruded alloy is characterized by a dispersion of fine coherent Al3Sc and/or Al3(Sc,Zr) particles, and furthermore the fine (sub)grain structure was observed in the hot-extruded alloy. Microhardness HV1 and resistivity values reflectdifferent microstructure of the alloys accordingly. The distinct resistivity changes of the alloys are mainly caused by precipitation of Mn-containing particles. The apparent activation energy for the Al6Mn-phase precipitation in the hot-

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GPP107%2F11%2FP201" target="_blank" >GPP107/11/P201: Využití precipitace a rekrystalizace při přípravě Al slitin s požadovanými vlastnostmi</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

Defect and Diffusion Forum

ISBN

—

ISSN

1012-0386

e-ISSN

—

Počet stran výsledku

6

Strana od-do

161-166

Název nakladatele

Trans Tech Publications

Místo vydání

STAFA-ZURICH

Místo konání akce

Istanbul

Datum konání akce

25. 6. 2012

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

000317868600028