Surface effects on the mechanical properties of rhodium nanowires by molecular dynamics simulations
Küçük Resim Yok
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study comprehensively investigates the mechanical properties of rhodium (Rh) nanowires using molecular dynamics simulations in which the interactions were expressed by embedded atom method potentials and interprets their relation with the deformation process. We have observed that the stress-strain behavior of Rh nanowires is radically different from the bulk material. As the size increased, the Elastic Modulus of nanowires gradually decreases and saturates to reach bulk value. It is revealed that the mechanical response of thicker nanowires than the critical value of 2.8 nm size is characterized by the core atoms and the surface effects lose their dominance due to the stability of the core atoms. The high strain rates delay yielding and neck formation and can be used to design the strengthened thin Rh nanowires.
Açıklama
Anahtar Kelimeler
Rhodium Nanowires, Molecular Dynamics Simulations, Tensile Deformation, Embedded Atom Method, Surface Effects, Strain-Rate, Metallic Nanowires, Glass-Formation, Rh Alloy, Size, Single, Strength, Behavior, Deformation, Nucleation
Kaynak
Physica B-Condensed Matter
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
622
