Deformation Behavior of La2O3-Doped Copper during Equal Channel Angular Pressing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F24%3A10256142" target="_blank" >RIV/61989100:27360/24:10256142 - isvavai.cz</a>
Result on the web
<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:001381735300001" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:001381735300001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adem.202402412" target="_blank" >10.1002/adem.202402412</a>
Alternative languages
Result language
angličtina
Original language name
Deformation Behavior of La2O3-Doped Copper during Equal Channel Angular Pressing
Original language description
Pure copper has a very low strength of not more than 20 MPa. Nevertheless, its mechanical properties can be enhanced by (micro)alloying, additions of strengthening particles/elements, or imparting structure modifications/grain refinement via (severe) shear strain. The presented study proposes a way of strengthening commercially pure copper by combining 5 wt% addition of La2O3 particles and deformation processing. The composite is vacuum induction cast and subsequently processed by the equal channel angular pressing (ECAP) severe plastic deformation method. Single-pass ECAP through a die with 110 degrees angle is selected to observe the effect of La2O3 addition on the development of substructure at the beginning of plastic deformation. The results show that the addition of oxide particles not only enhances the microhardness, but also efficiently supports the development of subgrains and shear bands during deformation, which finally results in an increase in the microhardness of the composite to more than double the original copper value. Although the presence of La2O3 particles slightly decreases the electric conductivity, the subsequent ECAP processing provides the final composite with a conductivity of 97.9% IACS (International Annealed Copper Standard), as it promotes the alignment of the strengthening particles along the developed shear bands.
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
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)
Result continuities
Project
<a href="/en/project/GA22-11949S" target="_blank" >GA22-11949S: Nanotwins, functional properties driven by intensive plastic deformation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Engineering Materials
ISSN
1438-1656
e-ISSN
1527-2648
Volume of the periodical
Neuvedeno
Issue of the periodical within the volume
2024
Country of publishing house
DE - GERMANY
Number of pages
7
Pages from-to
nestránkováno
UT code for WoS article
001381735300001
EID of the result in the Scopus database
2-s2.0-85212786281