Improved plasticity by electropulsing in a Zr62Al 19Ni19 bulk metallic glass

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Original languageEnglish
Article number12053
Journal / PublicationJournal of Physics: Conference Series
Publication statusPublished - 2009


The present work reported the application of electropulsing technique (EPT) for improving plasticity of a Zr62Al19Ni19 bulk metallic glass. After the elecropulsing with a small current of 5A, no obvious crystallization was observed in X-ray diffraction (XRD) patterns. Results of differential scanning calorimetry (DSC) measurements indicated that the glass transition temperature was reduced from 698K to 691K. Room-temperature uniaxial compression tests revealed that the treated BMG showed larger plastic deformation up to 6%, compared with less than 2% plasticity of untreated sample, at a 1×10-4 s-1 strain rate. SEM observation showed that the sample after electropulsing treatment show significant difference in the distribution of shear bands from that of the untreated one. © 2009 IOP Publishing Ltd.