Anisotropy of mechanical and thermal properties of AZ31 sheets prepared using the ARB technique

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F17%3AN0000045" target="_blank" >RIV/26316919:_____/17:N0000045 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/17:10370121

Výsledek na webu

<a href="http://iopscience.iop.org/article/10.1088/1757-899X/219/1/012023/meta;jsessionid=8747C480BDA253A68427579695B8B2EE.c2.iopscience.cld.iop.org" target="_blank" >http://iopscience.iop.org/article/10.1088/1757-899X/219/1/012023/meta;jsessionid=8747C480BDA253A68427579695B8B2EE.c2.iopscience.cld.iop.org</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/219/1/012023" target="_blank" >10.1088/1757-899X/219/1/012023</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Anisotropy of mechanical and thermal properties of AZ31 sheets prepared using the ARB technique

Popis výsledku v původním jazyce

In the accumulative roll bonding (ARB) technique, repeated stacking of material followed by conventional roll-bonding is carried out. For this process the surfaces are cleaned with ethanol and then joined together by rolling. The rolled material is then cut into two halves, again surface treated and roll-bonded. This process may be repeated several times. For the magnesium alloy AZ31 (Mg-3Al-1Zn) rolling at an elevated temperature of 400 degrees C is necessary for ARB because of the low plasticity of hexagonal magnesium alloys at lower temperatures. Samples for this study were prepared using 1 to 3 ARB passes through the rolling mill. It was found that the ARB substantially refined the grain size of sheets to the micrometer scale. The microstructure and texture of the deformed samples were studied by light and electron microscopy. The mechanical properties of the ARB samples were explored using tensile test-pieces cut from the sheets with the tensile axis taken either parallel or perpendicular to the rolling direction, where a significant anisotropy in both mechanical properties and Young's modulus was found. Anisotropy is explained on the basis of the specific microstructure and texture formed during the ARB process.

Název v anglickém jazyce

Anisotropy of mechanical and thermal properties of AZ31 sheets prepared using the ARB technique

Popis výsledku anglicky

In the accumulative roll bonding (ARB) technique, repeated stacking of material followed by conventional roll-bonding is carried out. For this process the surfaces are cleaned with ethanol and then joined together by rolling. The rolled material is then cut into two halves, again surface treated and roll-bonded. This process may be repeated several times. For the magnesium alloy AZ31 (Mg-3Al-1Zn) rolling at an elevated temperature of 400 degrees C is necessary for ARB because of the low plasticity of hexagonal magnesium alloys at lower temperatures. Samples for this study were prepared using 1 to 3 ARB passes through the rolling mill. It was found that the ARB substantially refined the grain size of sheets to the micrometer scale. The microstructure and texture of the deformed samples were studied by light and electron microscopy. The mechanical properties of the ARB samples were explored using tensile test-pieces cut from the sheets with the tensile axis taken either parallel or perpendicular to the rolling direction, where a significant anisotropy in both mechanical properties and Young's modulus was found. Anisotropy is explained on the basis of the specific microstructure and texture formed during the ARB process.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/GA15-11879S" target="_blank" >GA15-11879S: Zotavovací procesy ve vybraných hořčíkových slitinách, připravených intenzívní plastickou deformací</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

38TH RISO INTERNATIONAL SYMPOSIUM ON MATERIALS SCIENCE

ISBN

—

ISSN

1757-8981

e-ISSN

—

Počet stran výsledku

8

Strana od-do

nestránkováno

Název nakladatele

IOP Publishing

Místo vydání

Bristol

Místo konání akce

Roskilde

Datum konání akce

4. 9. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000409355600023