Annealing Effects in Cast Commercial Aluminium Al-Mg-Zn-Cu(-Sc-Zr) Alloys
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10439030" target="_blank" >RIV/00216208:11320/21:10439030 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/21:00335116 RIV/61389021:_____/21:00519299
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=VWwK7wyGE7" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=VWwK7wyGE7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s12540-019-00499-6" target="_blank" >10.1007/s12540-019-00499-6</a>
Alternative languages
Result language
angličtina
Original language name
Annealing Effects in Cast Commercial Aluminium Al-Mg-Zn-Cu(-Sc-Zr) Alloys
Original language description
Precipitation reactions of the cast Al-3.4 at%Mg-2.7 at%Zn-0.80 at%Cu-0.10 at%Fe-0.05 at%Si alloy with and without addition of 0.14 at%Sc and 0.06 at%Zr were characterized by electrical resistometry, electron microscopy, X-ray diffraction, thermal analysis, microhardness testing, and positron annihilation. The AlMgZnCuScZr alloy contains a grain boundary T-phase (Mg-32(Al,Cu,Zn)(49)) with a cubic and/or quasicrystalline structure. The AlMgZnCu alloy contains a mixture of MgZn2- and the T-phase. Primary multilayer Al-3(Sc,Zr) particles precipitated during casting and subsequent cooling. The particles have a layered Al-3(Sc,Zr) + alpha-Al + Al-3(Sc,Zr) structure, i.e. consist of regions enriched with both Sc and Zr. Small atomic Mg,Zn(,Cu)-rich clusters coherent with the matrix were formed during the cooling of both alloys and/or in the course of their storage at ambient temperature. Their dissolution enables precipitation of the transient eta '- and/or stable eta-phases of the AlZnMgCu system in both investigated alloys. The effective activation energy for the dissolution of the clusters was calculated as similar to 103 kJ/mol. Annealing of the AlMgZnCuScZr alloy above 300 degrees C leads to a formation of the secondary Al-3(Sc,Zr) particles which cause precipitation hardening and guarantee thermal stability of mechanical properties. Addition of Sc and Zr micro alloying elements resulted in a substantial grain refinement. The grain size remains unchanged up to isochronal annealing at 390 degrees C.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Metals and Materials International
ISSN
1598-9623
e-ISSN
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Volume of the periodical
27
Issue of the periodical within the volume
5
Country of publishing house
KR - KOREA, REPUBLIC OF
Number of pages
10
Pages from-to
995-1004
UT code for WoS article
000491937400001
EID of the result in the Scopus database
2-s2.0-85074261087