Preparation of AlCoCrFeNiTi0.5 High Entropy Alloy by SPS from Mechanically Alloyed Powders

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU117126" target="_blank" >RIV/00216305:26210/15:PU117126 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.europm2015.com/" target="_blank" >http://www.europm2015.com/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preparation of AlCoCrFeNiTi0.5 High Entropy Alloy by SPS from Mechanically Alloyed Powders

Popis výsledku v původním jazyce

High entropy alloys are newly developed class of materials with excellent properties and promising application potential. The present work reports synthesis of inequiatomic alloy AlCoCrFeNiTi0.5 prepared by mechanical alloying (MA) in planetary ball millfollowed by spark plasma sintering (SPS). Alloying behaviour, microstructure, basic mechanical properties and thermal behaviour of the alloy were investigated by means of XRD, SEM and DSC analyses and microhardness testing. It was found that the MA process parameters significantly influence homogeneity and size of the obtained alloyed powders. During MA, Cr-based supersaturated solid solution with body-centered cubic (BCC) structure was formed. After SPS at 1000°C the fine grained microstructure consisted of BCC solid solution and ordered FCC phase. Low levels of retained porosity were observed. The alloy exhibited a high hardness of 762HV.

Název v anglickém jazyce

Preparation of AlCoCrFeNiTi0.5 High Entropy Alloy by SPS from Mechanically Alloyed Powders

Popis výsledku anglicky

High entropy alloys are newly developed class of materials with excellent properties and promising application potential. The present work reports synthesis of inequiatomic alloy AlCoCrFeNiTi0.5 prepared by mechanical alloying (MA) in planetary ball millfollowed by spark plasma sintering (SPS). Alloying behaviour, microstructure, basic mechanical properties and thermal behaviour of the alloy were investigated by means of XRD, SEM and DSC analyses and microhardness testing. It was found that the MA process parameters significantly influence homogeneity and size of the obtained alloyed powders. During MA, Cr-based supersaturated solid solution with body-centered cubic (BCC) structure was formed. After SPS at 1000°C the fine grained microstructure consisted of BCC solid solution and ordered FCC phase. Low levels of retained porosity were observed. The alloy exhibited a high hardness of 762HV.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

EURO PM 2015 Proceedings

ISBN

978-1-899072-47-7

ISSN

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e-ISSN

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Počet stran výsledku

500

Strana od-do

1-6

Název nakladatele

European powder metallurgy association

Místo vydání

Reims France

Místo konání akce

Reims, France

Datum konání akce

4. 10. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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