Shear strain induced recrystallization/recovery phenomena within rotary swaged Al/Cu composite conductors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F22%3A00563338" target="_blank" >RIV/68081723:_____/22:00563338 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/22:10250752 RIV/00216305:26210/22:PU146294

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1044580322006817?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1044580322006817?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchar.2022.112399" target="_blank" >10.1016/j.matchar.2022.112399</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Shear strain induced recrystallization/recovery phenomena within rotary swaged Al/Cu composite conductors

Popis výsledku v původním jazyce

The presented study aims to assess the effects of room temperature rotary swaging on structure, dynamic restoration processes in particular, within newly designed Al/Cu composite conductors. Swaging was processed from the original diameter of 50 mm (assembled billets) to the diameters of 20 mm, 15 mm, and 10 mm (final conductors). Cross-sectional samples of the swaged conductors were subjected to thorough structure analyses via electron microscopy, analyses of HV0.2 Vickers microhardness and specific electric resistivity were performed to supplement the study. Swaging to 15 mm primarily imparted structure recovery, while the final swaging to 10 mm introduced dynamic recrystallization within both the composite components (the fractions of high angle grain boundaries within Al and Cu were 78.7%, and 74.2%, respectively). The 10 mm composite Cu also featured increased fraction of Cube (Euler angles of φ1 = 0°, ϕ = 0°, and φ2 = 0°) ideal recrystallization texture orientation. As regards the specific electric resistivity, this parameter was influenced primarily by accumulated dislocations, grain size and arrangement (e.g. bimodal distribution), as well as possible presence of texture. The lowest specific electric resistivity of 20.589 Ωm·10−9 was measured for the 15 mm conductor exhibiting dynamic restoration. The Cu component of this composite also featured the highest HV0.2 Vickers microhardness value.

Název v anglickém jazyce

Shear strain induced recrystallization/recovery phenomena within rotary swaged Al/Cu composite conductors

Popis výsledku anglicky

The presented study aims to assess the effects of room temperature rotary swaging on structure, dynamic restoration processes in particular, within newly designed Al/Cu composite conductors. Swaging was processed from the original diameter of 50 mm (assembled billets) to the diameters of 20 mm, 15 mm, and 10 mm (final conductors). Cross-sectional samples of the swaged conductors were subjected to thorough structure analyses via electron microscopy, analyses of HV0.2 Vickers microhardness and specific electric resistivity were performed to supplement the study. Swaging to 15 mm primarily imparted structure recovery, while the final swaging to 10 mm introduced dynamic recrystallization within both the composite components (the fractions of high angle grain boundaries within Al and Cu were 78.7%, and 74.2%, respectively). The 10 mm composite Cu also featured increased fraction of Cube (Euler angles of φ1 = 0°, ϕ = 0°, and φ2 = 0°) ideal recrystallization texture orientation. As regards the specific electric resistivity, this parameter was influenced primarily by accumulated dislocations, grain size and arrangement (e.g. bimodal distribution), as well as possible presence of texture. The lowest specific electric resistivity of 20.589 Ωm·10−9 was measured for the 15 mm conductor exhibiting dynamic restoration. The Cu component of this composite also featured the highest HV0.2 Vickers microhardness value.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/GA22-11949S" target="_blank" >GA22-11949S: Nanodvojčata, funkční vlastnosti řízené intenzivní plastickou deformací</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Materials Characterization

ISSN

1044-5803

e-ISSN

1873-4189

Svazek periodika

194

Číslo periodika v rámci svazku

DEC

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

112399

Kód UT WoS článku

000878741400003

EID výsledku v databázi Scopus

2-s2.0-85140247486