Effects of twist channel angular pressing on structure and properties of bimetallic Al/Cu clad composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F20%3A10245906" target="_blank" >RIV/61989100:27360/20:10245906 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0264127520307905" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0264127520307905</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matdes.2020.109255" target="_blank" >10.1016/j.matdes.2020.109255</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of twist channel angular pressing on structure and properties of bimetallic Al/Cu clad composites

Popis výsledku v původním jazyce

This study documents the effects of the twist channel angular pressing (TCAP) on the structure and selected properties of Al/Cu clad composites. Processing of the designed clad composite via single, as well as double pass TCAP was performed experimentally, and simulated via the finite element method. The deformation behaviour predicted via the simulation was verified experimentally by 3D Micro-CT scanning, and by structure analyses. The results revealed that the single pass introduced significant deformation strengthening of the Al/Cu composite components, and after the second pass, the effective imposed strain in the Al sheath approached the value of 5. The composite sheath also exhibited more or less homogeneous distribution of residual stress of the lowest observed absolute values, and the smallest observed average grain size - slightly above 1.5 μm. The Cu grains in the structures of the wires within the extruded composites also refined significantly, especially after the second pass, to almost 3 μm. However, the analysed parameters exhibited slight variations across the cross-sections of the composite billets. This can be attributed to phenomena related to the (differences in the) plastic flow. The intensive imposed shear strain also imparted increase in microhardness and changes in thermal conductivity..

Název v anglickém jazyce

Effects of twist channel angular pressing on structure and properties of bimetallic Al/Cu clad composites

Popis výsledku anglicky

This study documents the effects of the twist channel angular pressing (TCAP) on the structure and selected properties of Al/Cu clad composites. Processing of the designed clad composite via single, as well as double pass TCAP was performed experimentally, and simulated via the finite element method. The deformation behaviour predicted via the simulation was verified experimentally by 3D Micro-CT scanning, and by structure analyses. The results revealed that the single pass introduced significant deformation strengthening of the Al/Cu composite components, and after the second pass, the effective imposed strain in the Al sheath approached the value of 5. The composite sheath also exhibited more or less homogeneous distribution of residual stress of the lowest observed absolute values, and the smallest observed average grain size - slightly above 1.5 μm. The Cu grains in the structures of the wires within the extruded composites also refined significantly, especially after the second pass, to almost 3 μm. However, the analysed parameters exhibited slight variations across the cross-sections of the composite billets. This can be attributed to phenomena related to the (differences in the) plastic flow. The intensive imposed shear strain also imparted increase in microhardness and changes in thermal conductivity..

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/GA19-15479S" target="_blank" >GA19-15479S: Zbytková napětí a mikrostruktura v kovových kompozitech modifikovaných extrémní plastickou deformací</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Materials and Design

ISSN

0264-1275

e-ISSN

—

Svazek periodika

196

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

109255

Kód UT WoS článku

000606821400007

EID výsledku v databázi Scopus

2-s2.0-85094944342