Development of structure and properties in bimetallic Al/Cu sandwich composite during cumulative severe plastic deformation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F21%3A10248061" target="_blank" >RIV/61989100:27360/21:10248061 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.sagepub.com/doi/10.1177/1099636221993886" target="_blank" >https://journals.sagepub.com/doi/10.1177/1099636221993886</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/1099636221993886" target="_blank" >10.1177/1099636221993886</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Development of structure and properties in bimetallic Al/Cu sandwich composite during cumulative severe plastic deformation

Popis výsledku v původním jazyce

Development of modern materials is non-negligibly connected with enhancement of their mechanical and utility properties, which can advantageously be performed via optimized deformation processing. The study presents preparation of Al/Cu sandwich composite, reinforced with Cu-wires, by the twist channel angular pressing (TCAP) method. Extrusion of the sandwich composite via single and double pass TCAP was simulated using the finite element method, and performed experimentally. The predicted deformation behaviour was verified by 3 D Micro-CT scanning, as well as detailed microstructure observations. The results showed that already the single TCAP resulted in substantial deformation strengthening of both the component metals, and the effective strain imposed within the Al-sheath reached the value of 5 after the second pass. The Al-sheath also featured homogeneous distribution of the lowest absolute values of residual stress, and the smallest average grain size of 1.66 micrometers. The Cu grains within both the composites were also significantly refined, to almost 3 micrometers after the second pass. Nevertheless, the observed parameters featured slight variations across the composites&apos; cross-sections, which can be attributed to the plastic flow behaviour phenomena. The severe imposed shear strain also resulted in increase in microhardness and imparted changes in the thermal conductivity.

Název v anglickém jazyce

Development of structure and properties in bimetallic Al/Cu sandwich composite during cumulative severe plastic deformation

Popis výsledku anglicky

Development of modern materials is non-negligibly connected with enhancement of their mechanical and utility properties, which can advantageously be performed via optimized deformation processing. The study presents preparation of Al/Cu sandwich composite, reinforced with Cu-wires, by the twist channel angular pressing (TCAP) method. Extrusion of the sandwich composite via single and double pass TCAP was simulated using the finite element method, and performed experimentally. The predicted deformation behaviour was verified by 3 D Micro-CT scanning, as well as detailed microstructure observations. The results showed that already the single TCAP resulted in substantial deformation strengthening of both the component metals, and the effective strain imposed within the Al-sheath reached the value of 5 after the second pass. The Al-sheath also featured homogeneous distribution of the lowest absolute values of residual stress, and the smallest average grain size of 1.66 micrometers. The Cu grains within both the composites were also significantly refined, to almost 3 micrometers after the second pass. Nevertheless, the observed parameters featured slight variations across the composites&apos; cross-sections, which can be attributed to the plastic flow behaviour phenomena. The severe imposed shear strain also resulted in increase in microhardness and imparted changes in the 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

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of Sandwich Structures and Materials

ISSN

1099-6362

e-ISSN

—

Svazek periodika

neuveden

Číslo periodika v rámci svazku

february

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

24

Strana od-do

4252-4275

Kód UT WoS článku

000656000900001

EID výsledku v databázi Scopus

2-s2.0-85101227273