EFFECT OF THERMOMECHANICAL TREATMENT ON STRUCTURAL PHENOMENA AND ELECTROCONDUCTIVITY IN COPPER CONDUCTORS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00603648" target="_blank" >RIV/68081723:_____/22:00603648 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.37904/metal.2022.4399" target="_blank" >http://dx.doi.org/10.37904/metal.2022.4399</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/metal.2022.4399" target="_blank" >10.37904/metal.2022.4399</a>
Alternative languages
Result language
angličtina
Original language name
EFFECT OF THERMOMECHANICAL TREATMENT ON STRUCTURAL PHENOMENA AND ELECTROCONDUCTIVITY IN COPPER CONDUCTORS
Original language description
Despite its relatively high cost, copper is still the most popular electroconductive material. Its electroconductivity can be affected via structure modifications introduced by shear mixing, i.e. deformation processing, and/or thermomechanical treatment. Being an industrially applicable method of intensive plastic deformation, advantageously used to impart shear mixing, rotary swaging is favourable for production of long electroconductive wires. This study is focused on assessment of the effects of thermomechanical treatment on structural phenomena within copper conductors, the treatment consisted of room temperature rotary swaging and subsequent annealing. The results showed that the deformation ratio introduced via swaging was sufficient to impart homogenization of structure as the differences between the grain sizes and texture orientations within the peripheral and axial regions of the conductor were minimal. On the other hand, the swaged and annealed conductor featured slight inhomogeneity between the peripheral and axial regions, especially as regards structure regeneration and the occurrence of twinning, which was more pronounced in the axial region of the thermomechanically processed conductor (the volume fraction of <111> 60 degrees twin boundaries was 60 % within this sample region). Interestingly, the electroconductivity was higher than 100 % IACS (International Annealed Copper Standard) for the swaged conductor, and even increased up to 104.4 % IACS for the annealed conductor due to the structure modifications imparted by the applied heat treatment.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
20501 - Materials engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
31st International Conference on Metallurgy and Materials, METAL 2022
ISBN
978-80-88365-06-8
ISSN
2694-9296
e-ISSN
—
Number of pages
6
Pages from-to
244-249
Publisher name
TANGER LTD
Place of publication
Ostrava
Event location
Brno
Event date
May 18, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001235285500038