Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Ill Ryu"'
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 6265-6277 (2024)
Recent experimental findings have shown that tantalum single crystals display strong anisotropy during Taylor impact testing in stark contrast to isotropic deformation in polycrystalline counterparts. In this study, a coupled dislocation dynamics and
Externí odkaz:
https://doaj.org/article/8886ebd7479c4642a02528b83737fd7a
Publikováno v:
Journal of Materials Research. 36:2371-2382
The plasticity of body‐centered cubic (bcc) metals is dependent of temperature as well as sample dimension at the micrometer scale, but the effects of cryogenic temperature on the plasticity and the related failure process in micron‐sized bcc met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e49c66b7613be4efd31d284e3d053f0
https://doi.org/10.1557/s43578-020-00069-2
https://doi.org/10.1557/s43578-020-00069-2
Autor:
Jamie D. Gravell, Ill Ryu
Publikováno v:
Acta Materialia. 190:58-69
In metallic materials, the activation of one slip system increases the flow strength of other slip systems, which is phenomenon known as latent hardening. This latent hardening behavior has been understood by the “forest hardening” mechanism aris
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c767306362965d5a1fea51ec69ae9154
https://doi.org/10.1016/j.actamat.2020.02.030
https://doi.org/10.1016/j.actamat.2020.02.030
Publikováno v:
Acta Materialia. 223:117455
To understand the underlying mechanisms that control the mechanical properties of nanostructured metals, an insight into the role of the grain boundary in dislocation-driven plastic deformation is vital. The grain boundary has been observed as a disl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc5d7efe88a02e24bbaed315286b8caa
https://doi.org/10.1016/j.actamat.2021.117455
https://doi.org/10.1016/j.actamat.2021.117455
Publikováno v:
Materialia. 19:101181
Recent experiments in micron- or sub-micron metallic pillars have displayed size dependent plasticity. Dislocation dynamics (DD) simulations can be a useful tool in studying dislocation-mediated plasticity, which is widely believed to contribute to o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::369a41549de5f97dca6b0a8bfbd3690a
https://doi.org/10.1016/j.mtla.2021.101181
https://doi.org/10.1016/j.mtla.2021.101181
Publikováno v:
Acta Materialia. 214:117010
At the continuum length scale, mechanical properties of metals show relatively weak orientation dependence; however, they exhibit strong anisotropic behaviors as the size of sample decreases to micron and nanometer length scales. In this study, three
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6be0e39d67e8ac74acdb762d6c45dbe9
https://doi.org/10.1016/j.actamat.2021.117010
https://doi.org/10.1016/j.actamat.2021.117010
Publikováno v:
Extreme Mechanics Letters. 40:100901
The mechanical behavior of submicron body-centered cubic (BCC) micro-pillars is investigated by three-dimensional dislocation dynamics (DD) simulations to better understand the governing mechanisms for size dependent plasticity under uniaxial tension
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a99ac7c7b44be55199d263410b79a2c
https://doi.org/10.1016/j.eml.2020.100901
https://doi.org/10.1016/j.eml.2020.100901
Publikováno v:
Extreme Mechanics Letters. 40:100895
Using a series of molecular dynamics simulations, we study the plastic deformation of 110 -oriented single crystalline face-centered-cubic (FCC) metallic nanowires (NWs) under torsional loading for two representative materials with different stacking
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cea8fc79bea903bc5c9dcc0ac0e5fb7b
https://doi.org/10.1016/j.eml.2020.100895
https://doi.org/10.1016/j.eml.2020.100895
Publikováno v:
JOM. 68:253-260
Three-dimensional dislocation dynamics (DD) simulations are performed to investigate the size-dependent plasticity in submicron face-centered cubic (FCC) micropillars under torsion. By using a previously implemented surface nucleation algorithm withi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97335181c49c6fee539cb9ed0198a7dc
https://doi.org/10.1007/s11837-015-1692-1
https://doi.org/10.1007/s11837-015-1692-1
Publikováno v:
Acta Materialia. 95:176-183
Three dimensional dislocation dynamics (DD) simulations are performed to investigate the governing mechanism of size dependent plastic deformation in submicron face-centered cubic (fcc) micropillars under uniaxial loading. Based on previous atomistic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2bc4bdb68f88ea61ae6d924495983bf
https://doi.org/10.1016/j.actamat.2015.05.032
https://doi.org/10.1016/j.actamat.2015.05.032