The effect of Ni on the cryogenic attritor milling of Metglas Fe78B13Si9

Abstract

The addition of 17 at.% of elemental Ni powders to the cryogenic attritor milling of Metglas Fe₇₈B₁₃Si₉ slowed the mechanical crystallization of the α-Fe and Fe₂B phases. Transmission electron microscopy (TEM) observation and energy dispersive spectroscopy (EDS) analysis indicated that no more than 3.60 at.% of Ni dissolved into the Metglas, which was well within the equilibrium solubility limit of Ni in α-Fe. It is proposed that the addition of Ni impede mechanical crystallization during attritor milling by inhibiting bending and wear-like processes which could otherwise cause crystallization.