Abstract
Abstract In this work, the molecular dynamics (MD) simulation was performed to evaluate the nanomechanical properties and plasticity behavior of amorphous nanolaminates. For this purpose, two types of nanolaminates with the composition layers of Cu50Zr50/Cu54Zr46/Cu60Zr40 (ABC-type) and Cu50Zr50/Cu60Zr40 (AC-type) were firstly designed and the mechanical properties were then evaluated through the nanoindentation and tensile loading. The results indicated that the ABC-type nanolaminate exhibited higher strength and resisted the relaxation of stored energy in the holding stage of the indenting process. The Von-Mises strain distribution also showed that the plastic deformation initiated from the indenter/sample connection and gradually continued into the depth of the sample, while the strained regions in the AC-type considerably extended in the width of the sample perpendicular to the indenting force. The tensile loading results demonstrated that the intersection of the interface and free surface is the potential site for the initiation of shear events in both nanolaminates; however, the AC-type showed a sharp strain accumulation in the soft layer (Cu50Zr50) with the increase in the total strain value. On the other side, the gradual changes in the chemical compositions of layers and slight compositional variations at the interfaces led to more homogeneous plastic deformation in the ABC-type nanolaminate.
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.
