Tensile deformation behaviour of twin-roll cast Al-steel clad sheet studied by in-situ methods

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10511179" target="_blank" >RIV/00216208:11320/25:10511179 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=~WNIDZKv63" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=~WNIDZKv63</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.msea.2024.147668" target="_blank" >10.1016/j.msea.2024.147668</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tensile deformation behaviour of twin-roll cast Al-steel clad sheet studied by in-situ methods

Popis výsledku v původním jazyce

Aluminium-steel composites find application in many branches of industry and novel routes are searched for their fabrication. Twin-roll casting is an alternative method for roll-bonding in the casting of clad sheets. However, due to different casting conditions, the initial microstructure is different, and the material can evince distinct behaviour. In our research, we have employed in-situ methods for observation of the tensile behaviour of a twin-roll cast clad material. We have shown that aluminium-steel clad material with reputable mechanical properties can already be prepared by twin-roll casting without subsequent heat treatment. With increasing the annealing temperature, both the ultimate tensile strength and elongation to fracture decrease gradually. The decrease in strength is caused by restoration processes in aluminium, and elongation decreases due to the deterioration of the bond between the materials. An intermetallic layer forms at the Al-steel interface upon annealing. Such a layer does not modify the course of the tensile deformation but cracks perpendicularly to the loading direction to form long channels. The first layer to fracture during the tensile testis governed by the bonding strength of the materials - when the bonding is sound and the delamination moderate, the clad material deforms as a unity and steel fractures first. In the case of lower bonding strength, the layers deform independently after severe debonding, and the higher ductility of the steel layer prevails, leading to the fracture of the aluminium layer.

Název v anglickém jazyce

Tensile deformation behaviour of twin-roll cast Al-steel clad sheet studied by in-situ methods

Popis výsledku anglicky

Aluminium-steel composites find application in many branches of industry and novel routes are searched for their fabrication. Twin-roll casting is an alternative method for roll-bonding in the casting of clad sheets. However, due to different casting conditions, the initial microstructure is different, and the material can evince distinct behaviour. In our research, we have employed in-situ methods for observation of the tensile behaviour of a twin-roll cast clad material. We have shown that aluminium-steel clad material with reputable mechanical properties can already be prepared by twin-roll casting without subsequent heat treatment. With increasing the annealing temperature, both the ultimate tensile strength and elongation to fracture decrease gradually. The decrease in strength is caused by restoration processes in aluminium, and elongation decreases due to the deterioration of the bond between the materials. An intermetallic layer forms at the Al-steel interface upon annealing. Such a layer does not modify the course of the tensile deformation but cracks perpendicularly to the loading direction to form long channels. The first layer to fracture during the tensile testis governed by the bonding strength of the materials - when the bonding is sound and the delamination moderate, the clad material deforms as a unity and steel fractures first. In the case of lower bonding strength, the layers deform independently after severe debonding, and the higher ductility of the steel layer prevails, leading to the fracture of the aluminium layer.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/GJ20-00355Y" target="_blank" >GJ20-00355Y: Hliníkovo-ocelové pláty připravené plynulým litím mezi válce</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Materials Science &amp; Engineering A: Structural Materials: Properties, Microstructure and Processing

ISSN

0921-5093

e-ISSN

1873-4936

Svazek periodika

923

Číslo periodika v rámci svazku

neuveden

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

147668

Kód UT WoS článku

001392620900001

EID výsledku v databázi Scopus

2-s2.0-85212558389