Cu-Zr-Ti bulk metallic glass composites produced by mechanical alloying and vacuum hot-pressing

C. C. Wang, C. K. Lin, Y. L. Lin, J. S. Chen, R. R. Jen, P. Y. Lee

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12 Citations (Scopus)

Abstract

In the present study, WC/Cu60Zr30Ti10 metallic glass composite powders were prepared by mechanical alloying of pure Cu, Zr, Ti, and WC powder mixtures. Cu60Zr30Ti 10 metallic glass composite powders were obtained after 5 h of milling as confirmed by X-ray diffraction and differential scanning calorimetry. The metallic glass composites powders were found to exhibit a supercooled liquid region before crystallization. Bulk metallic glass (BMG) composites were synthesized by vacuum hot pressing the as-milled Cu60Zr 30Ti10 metallic glass composite powders at 723 K in the pressure range of 0.72-1.20 GPa. BMG composite with submicron WC particles homogeneously embedded in a highly dense nanocrystalline/amorphous matrix was successfully prepared under applied pressure of 1.20 GPa. It was found that the pressure could enhance the thermal stability and promotes nanocrystallization of WC/Cu60Zr30Ti10 BMG composites.

Original languageEnglish
Pages (from-to)3443-3450
Number of pages8
JournalMaterials Science Forum
Volume475-479
Issue numberV
Publication statusPublished - 2005
Externally publishedYes

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Keywords

  • Bulk metallic glass composites
  • Mechanical alloying
  • Pressure-induced nanocrystallization
  • Supercooled liquid region
  • Vacuum hot pressing

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Wang, C. C., Lin, C. K., Lin, Y. L., Chen, J. S., Jen, R. R., & Lee, P. Y. (2005). Cu-Zr-Ti bulk metallic glass composites produced by mechanical alloying and vacuum hot-pressing. Materials Science Forum, 475-479(V), 3443-3450.