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

Result code in 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>
Result on the web
<a href="http://www.europm2015.com/" target="_blank" >http://www.europm2015.com/</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Preparation of AlCoCrFeNiTi0.5 High Entropy Alloy by SPS from Mechanically Alloyed Powders
Original language description
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.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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