Laser heat treatment for Zr-based bulk metallic glass

R. Ikutomo, M. Tsujikawa, M. Hino, H. Kimura, Kunio Yubuta, A. Inoue

Research output: Contribution to conferencePaperpeer-review

Abstract

Bulk metallic glass (BMG) exhibits remarkable properties such as high strength, good stiffness and good corrosion resistance. However, the wear resistance of amorphous metals is not excellent as expected their high strength. It is thought that large local shear bands easily change into cracks for debris formation. The effective obstruction of shear band formation might be applied to improve the wear resistance of BMG. In this study, we tried to suppress shear band deformation by fine crystalline phase dispersion formed by diode laser irradiation. The microstructures of irradiated Zr-based BMG specimens were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The fine dispersions of crystalline phases are observed in the amorphous matrix.

Original languageEnglish
Publication statusPublished - 2007 Jan 1
Event16th International Federation for Heat Treatment and Surface Engineering Congress - Brisbane, QLD, Australia
Duration: 2007 Oct 302007 Nov 2

Other

Other16th International Federation for Heat Treatment and Surface Engineering Congress
CountryAustralia
CityBrisbane, QLD
Period07/10/3007/11/2

Keywords

  • Bulk metallic glass
  • Crystallization
  • Diode laser
  • Irradiation
  • Microstructure

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)

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