Detail publikace

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

MORAVČÍK, I. ČÍŽEK, J. HRYHA,E. DLOUHÝ, I.

Originální název

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

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

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 mill followed 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.

Klíčová slova

powder metallurgy, alloying, entropy

Autoři

MORAVČÍK, I.; ČÍŽEK, J.; HRYHA,E.; DLOUHÝ, I.

Rok RIV

2015

Vydáno

4. 10. 2015

Nakladatel

European powder metallurgy association

Místo

Reims France

ISBN

978-1-899072-47-7

Kniha

EURO PM 2015 Proceedings

Strany od

1

Strany do

6

Strany počet

500

URL

http://www.europm2015.com/

BibTex

@inproceedings{BUT120004,
  author="MORAVČÍK, I. and ČÍŽEK, J. and HRYHA,E. and DLOUHÝ, I.",
  title="Preparation of AlCoCrFeNiTi0.5 High Entropy Alloy by SPS 
from Mechanically Alloyed Powders",
  booktitle="EURO PM 2015 Proceedings",
  year="2015",
  pages="1--6",
  publisher="European powder metallurgy association",
  address="Reims France",
  isbn="978-1-899072-47-7",
  url="http://www.europm2015.com/"
}