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Investigation of phase stability of novel equiatomic FeCoNiCuZn based-high entropy alloy prepared by mechanical alloying.

Authors :
Soni, Vinay Kumar
Sanyal, S.
Sinha, S. K.
Shekhawat, Manoj Singh
Bhardwaj, Sudhir
Suthar, Bhuvneshwer
Source :
AIP Conference Proceedings; 2018, Vol. 1953 Issue 1, pN.PAG-N.PAG, 4p
Publication Year :
2018

Abstract

The present work reports the structural and phase stability analysis of equiatomic FeCoNiCuZn High entropy alloy (HEA) systems prepared by mechanical alloying (MA) method. In this research effort some 1287 alloy combinations were extensively studied to arrive at most favourable combination. FeCoNiCuZn based alloy system was selected on the basis of physiochemical parameters such as enthalpy of mixing (Δ<italic>H<subscript>mix</subscript></italic>), entropy of mixing (Δ<italic>S<subscript>mix</subscript></italic>), atomic size difference (Δ<italic>X</italic>) and valence electron concentration (VEC) such that it fulfils the formation criteria of stable multi component high entropy alloy system. In this context, we have investigated the effect of novel alloying addition in view of microstructure and phase formation aspect. XRD plots of the MA samples shows the formation of stable solid solution with FCC (Face Cantered Cubic) after 20 hr of milling time and no indication of any amorphous or intermetallic phase formation. Our results are in good agreement with calculation and analysis done on the basis of physiochemical parameters during selection of constituent elements of HEA. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0094243X
Volume :
1953
Issue :
1
Database :
Complementary Index
Journal :
AIP Conference Proceedings
Publication Type :
Conference
Accession number :
129584730
Full Text :
https://doi.org/10.1063/1.5032588