Enhancement of plastic deformability in Fe–Ni–Nb–B bulk glassy alloys by controlling the Ni-to-Fe concentration ratio

Park, J. M.; Wang, G.; Li, R.; Mattern, N.; Eckert, J.; Kim, D. H.
January 2010
Applied Physics Letters;1/18/2010, Vol. 96 Issue 3, p031905
Academic Journal
The influence of partial replacement of Fe by Ni in (Fe1-xNix)71Nb6B23 (0≤x≤0.5) bulk glassy alloys on the enhancement of the plasticity has been investigated. The increase of the Ni-to-Fe concentration ratio effectively improves the compressive plasticity. The (Fe0.5Ni0.5)71Nb6B23 alloy exhibits an enhanced plastic strain of ∼4.2%, together with high strength and distinct strain hardeninglike characteristics, when compared with the Ni-free Fe71Nb6B23 glass. The improved mechanical properties are ascribed to the control of the intrinsic elastic properties, followed by favorably tuning the interatomic interaction.


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