Atomic structure of shear bands in Cu64Zr36 metallic glasses studied by molecular dynamics simulations

2015 ◽  
Vol 95 ◽  
pp. 236-243 ◽  
Author(s):  
Shidong Feng ◽  
Li Qi ◽  
Limin Wang ◽  
Shaopeng Pan ◽  
Mingzhen Ma ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Metallic Glasses ◽  
Atomic Structure ◽  
Shear Bands ◽  
Dynamics Simulations

scholarly journals Transition to chip serration in simulated cutting of metallic glasses

2021 ◽  
Vol 94 (7) ◽  
Author(s):  
Karina E. Avila ◽  
Vardan Hoviki Vardanyan ◽  
Herbert M. Urbassek
Keyword(s):  
Molecular Dynamics ◽  
Surface Morphology ◽  
Molecular Dynamics Simulations ◽  
Metallic Glasses ◽  
Shear Bands ◽  
Shear Localization ◽  
Atomistic Simulations ◽  
Depth Of Cut ◽  
Nanocrystalline Metals ◽  
Dynamics Simulations

Abstract Cutting of metallic glasses produces as a rule serrated and segmented chips in experiments, while atomistic simulations produce straight unserrated chips. We demonstrate here that with increasing depth of cut – with all other parameters unchanged – chip serration starts to affect the morphology of the chip also in molecular dynamics simulations. The underlying reason is the shear localization in shear bands. As the distance between shear bands increases with increasing depth of cut, the surface morphology of the chip becomes increasingly segmented. The parallel shear bands that formed during cutting do no longer interact with each other when their separation is $$\gtrsim $$ ≳ 10 nm. Our results are analogous to the so-called fold instability that has been found when machining nanocrystalline metals. Graphic abstract

Synthesis of Sm–Al metallic glasses designed by molecular dynamics simulations

2018 ◽  
Vol 53 (16) ◽  
pp. 11488-11499 ◽  
Author(s):  
G. B. Bokas ◽  
Y. Shen ◽  
L. Zhao ◽  
H. W. Sheng ◽  
J. H. Perepezko ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Metallic Glasses ◽  
Dynamics Simulations

A model of density waves in atomic structure of nanodiamond by molecular dynamics simulations

2019 ◽  
Vol 91 ◽  
pp. 1-14 ◽  
Author(s):  
Kazimierz Skrobas ◽  
Svitlana Stelmakh ◽  
Stanislaw Gierlotka ◽  
Bogdan Palosz
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Atomic Structure ◽  
Density Waves ◽  
Dynamics Simulations
Sign in / Sign up

Export Citation Format

Share Document