Production of Fe based bulk metallic glasses using electromagnetic vibrations

Abstract

It is known that cooling rate from the liquid state is an important factor for producing the bulk metallic glasses. However, little work has been conducted on the influence of other factors such as electric and/or magnetic fields. The authors have previously reported that the glass forming ability of Mg–Cu–Y and Fe–Co–B–Si–Nb alloys is enhanced with increasing electromagnetic vibration force. The present study aims to investigate effect of the electromagnetic vibrations on the crystal particles in Fe–Co–B–Si–Nb bulk metallic glasses. As a result, the electromagnetic vibrations were found to act mainly on decreasing the number of crystal nuclei.