Heat Treatment of Cast and Cold Rolled Al-Yb and Al-Mn-Yb-Zr Alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10438661" target="_blank" >RIV/00216208:11320/21:10438661 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/21:00352840

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=lPbPaafSvq" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=lPbPaafSvq</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma14237122" target="_blank" >10.3390/ma14237122</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Heat Treatment of Cast and Cold Rolled Al-Yb and Al-Mn-Yb-Zr Alloys

Popis výsledku v původním jazyce

The microstructure, electrical properties and microhardness of as-cast and cold rolled AlYb and AlMnYbZr alloys were investigated. The addition of Mn, Yb and Zr has a positive influence on grain size. A deformed structure of the grains with no changes of their size was observed after cold rolling. The Al3Yb particles coherent with the matrix were observed in the AlYb alloys. The size of the particles was about 20 nm in the initial state; after isochronal treatment up to 540 degrees C the particles coarsen, and their number density was lower. The deformation has a massive effect on the microhardness behavior until treatment at 390 degrees C, after which the difference in microhardness changes between as-cast and cold rolled alloys disappeared. Relative resistivity changes show a large decrease in the temperature interval of 330-540 degrees C which is probably caused by a combination of recovery of dislocations and precipitation of the Al-3(Yb,Zr) particles. Precipitation hardening was observed between 100 and 450 degrees C in the AlYb alloy after ageing at 625 degrees C/24 h and between 330 and 570 degrees C in the AlMnYbZr alloy after ageing at 625 degrees C/24 h.

Název v anglickém jazyce

Heat Treatment of Cast and Cold Rolled Al-Yb and Al-Mn-Yb-Zr Alloys

Popis výsledku anglicky

The microstructure, electrical properties and microhardness of as-cast and cold rolled AlYb and AlMnYbZr alloys were investigated. The addition of Mn, Yb and Zr has a positive influence on grain size. A deformed structure of the grains with no changes of their size was observed after cold rolling. The Al3Yb particles coherent with the matrix were observed in the AlYb alloys. The size of the particles was about 20 nm in the initial state; after isochronal treatment up to 540 degrees C the particles coarsen, and their number density was lower. The deformation has a massive effect on the microhardness behavior until treatment at 390 degrees C, after which the difference in microhardness changes between as-cast and cold rolled alloys disappeared. Relative resistivity changes show a large decrease in the temperature interval of 330-540 degrees C which is probably caused by a combination of recovery of dislocations and precipitation of the Al-3(Yb,Zr) particles. Precipitation hardening was observed between 100 and 450 degrees C in the AlYb alloy after ageing at 625 degrees C/24 h and between 330 and 570 degrees C in the AlMnYbZr alloy after ageing at 625 degrees C/24 h.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Materials [online]

ISSN

1996-1944

e-ISSN

—

Svazek periodika

14

Číslo periodika v rámci svazku

23

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

7122

Kód UT WoS článku

000735009000001

EID výsledku v databázi Scopus

2-s2.0-85120042581