Early stages of solute clustering in an Al-Mg-Si alloy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10315694" target="_blank" >RIV/00216208:11320/15:10315694 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.actamat.2015.02.019" target="_blank" >http://dx.doi.org/10.1016/j.actamat.2015.02.019</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.actamat.2015.02.019" target="_blank" >10.1016/j.actamat.2015.02.019</a>
Alternative languages
Result language
angličtina
Original language name
Early stages of solute clustering in an Al-Mg-Si alloy
Original language description
The processes taking place during natural ageing (NA) of the aluminium alloy Al-0.4Mg-0.4Si (wt.%) are characterised by positron annihilation lifetime spectroscopy carried out both in situ during ageing and ex situ after cooling down samples to low temperatures (-180 degrees C to -60 degrees C) between NA steps. We find a pronounced dependence of positron lifetime on temperature, which is the signature of the presence of vacancy-free solute clusters in addition to vacancy-related defects. Such clustersare also found in as-quenched samples, indicating that clustering takes place already during quenching. The decomposition of positron lifetime spectra into various components allows us to apply the three-state trapping model and to determine the trappingrates into vacancy-related defects and solute clusters. By modelling the time dependence of positron data we are able to describe the natural ageing process as a gradual decrease of vacancy density associated with a pronounced increase o
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA13-09436S" target="_blank" >GA13-09436S: Non-destructive mapping of spatial distribution of defects in highly strained materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Materialia
ISSN
1359-6454
e-ISSN
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Volume of the periodical
91
Issue of the periodical within the volume
1 June 2015
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
355-364
UT code for WoS article
000354154400031
EID of the result in the Scopus database
2-s2.0-84937758125