Abstract
The workhardening Cu47·5Zr47·5Al5and the worksoftening Zr52·5Cu17·9Ni14·6Al10·0Ti5·0bulk metallic glasses before and after precompression deformation were characterisedfor thermal and mechanical behaviours. The predeformation introduces excessivefree volume in both glasses. Cu47·5Zr47·5Al5and Zr52·5Cu17·9Ni14·6Al10·0Ti5·0exhibit substantial workhardening and worksoftening behaviours respectively.For Cu47·5Zr47·5Al5, the precompressionhas a negligible effect on serrations in the plastic flow during nanoindentation,which is related to the hardening of a shear band, while for Zr52·5Cu17·9Ni14·6Al10·0Ti5·0, the precompression moderates serrations in the plasticflow during nanoindentation, which is associated with the softening of a shearband. Strengthening from mechanically induced nanocrystallites at shear bandsis responsible for the workhardening of Cu47·5Zr47·5Al5,which overwhelms softening due to the introduction of excessive free volume.
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.
