Abstract
Bulk glass formation in multicomponent Fe–Co–Ni–Zr–B and Fe–Co–Ni–Zr–Nb–B alloy systems has been investigated by means of casting in a wedge shaped copper mould. It is observed that the critical thickness for glass formation, thermal stability of the glass and the undercooled liquid region increase upon the addition of niobium. The coercivity increases abruptly above the critical thickness owing to disappearance of the amorphous phase. Amorphous ribbons of both alloy systems have been prepared with various zirconium and boron contents to obtain a spectrum of values for glass transition, crystallisation temperature and undercooled liquid region. Kinetics studies of crystallisation have revealed that the activation energy increases with increasing undercooled liquid region.
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.
