| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1614675 | Journal of Alloys and Compounds | 2013 | 7 Pages |
The equiatomic multicomponent AlCoCrCuFeNi hexanery high entropy alloy (HEA) was synthesized by mechanical alloying. The effect of the addition of W and Zr was studied by making equiatomic AlCoCrCuFeNiW septenary and AlCoCrCuFeNiWZr octonary high entropy alloys. The effect of alloying addition with milling time was studied using XRD, DSC/TGA, SEM, TEM and Mossbauer spectroscopy. Supersaturated solid solution structure was achieved after 60 h milling for hexanery alloy and after 40 h milling for both septenary and octonary high entropy alloys. The variation of Mossbauer parameters for AlCoCrCuFeNi system with the addition of W and Zr makes its magnetic environment more complex which is indicated by the conversion of magnetic AlCoCrCuFeNi HEA (60 h milling) to partially paramagnetic AlCoCrCuFeNiW (40 h milling) to completely paramagnetic AlCoCrCuFeNiWZr high entropy alloy.
► AlCoCrCuFeNi, AlCoCrCuFeNiW and AlCoCrCuFeNiWZr HEAs was prepared by MA. ► Simple solid solution (SS) was achieved after 60 h of milling for hexanery alloy. ► SS for both septenary and octonary HEAs was achieved after 40 h milling. ► Effect of W and Zr on thermal structural and magnetic properties was studied.
