Abstract
An in situ formed (Cu 0 . 6 Zr 0 . 2 5 Ti 0 . 1 5 ) 9 3 Nb 7 bulk metallic glass (BMG) composite was prepared successfully. The ductile Nb-rich crystalline phase with a dendritic structure disperses homogeneously in the BMG matrix. The mean size of the dendritic Nb phase is about 5∼10 μm. For Cu-Zr-Ti-Nb glassy ribbons, the additions of Nb element cause the glass transition and crystallization onset temperature to shift to much higher values, and improve the thermal stability of the glassy phase. For the in situ formed (Cu 0 . 6 Zr 0 . 2 5 Ti 0 . 1 5 ) 9 3 Nb 7 bulk metallic glass composites, its glass transition temperature and crystallization onset temperature is almost the same as those of the Nb-free Cu 6 0 Zr 2 5 Ti 1 5 BMG, implying that almost all the added Nb element precipitates from the melt upon cooling. The (Cu 0 . 6 Zr 0 . 2 5 Ti 0 . 1 5 ) 9 3 Nb 7 BMG composite also presents a good combination of excellent mechanical properties. The compressive fracture strength and fracture elongation are 2130MPa and 6.4%. respectively. The increase in elongation results from the homogeneous dispersion of the ductile and dendritic Nb-rich crystalline phase in the BMG matrix.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
