Zobrazeno 1 - 10
of 217
pro vyhledávání: '"Ilya A. Ovid'ko"'
Nanocrystalline materials exhibit exceptional mechanical properties, representing an exciting new class of structural materials for technological applications. The advancement of this important field depends on the development of new fabrication meth
Publikováno v:
Progress in Materials Science. 94:462-540
Nanostructured metallic materials having nanocrystalline and ultrafine-grained structures show exceptional mechanical properties, e.g. superior strength, that are very attractive for various applications. However, superstrong metallic nanomaterials t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27a8d685e4710a1768bd170f465b1180
https://doi.org/10.1016/j.pmatsci.2018.02.002
https://doi.org/10.1016/j.pmatsci.2018.02.002
Autor:
Ilya A. Ovid'ko, A. G. Sheinerman
Publikováno v:
International Journal of Plasticity. 96:227-241
A theoretical model is suggested which describes grain boundary (GB) sliding and its accommodation through dislocation slip in ultrafine-grained and nanocrystalline metals. The initial stage of the accommodating dislocation slip represents emission o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d77361149669421f4d0693e7e1fcb61
https://doi.org/10.1016/j.ijplas.2017.05.005
https://doi.org/10.1016/j.ijplas.2017.05.005
Autor:
Ilchat Sabirov, M. Yu. Murashkin, Ilya A. Ovid'ko, Francisco Gálvez, R. Sancho-Cadenas, M.A. Valdes-Tabernero
Publikováno v:
Materials Science and Engineering: A. 696:348-359
This work focuses on the effect of grain size and deformation mode on mechanical behavior and dynamic strain aging (DSA) process in an Al5083 alloy. The UFG material with average grain size of 0.4 µm was produced by equal channel angular pressing wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edd9f302167c5d33a3a45331f888412b
https://doi.org/10.1016/j.msea.2017.04.024
https://doi.org/10.1016/j.msea.2017.04.024
Publikováno v:
Doklady Physics. 62:244-247
A theoretical description of the plastic deformation of nanostructured and polycrystalline metals through paired nanotwinning on grain boundaries has been proposed. Within the micromechanical approach developed, deformation nanotwins are formed as a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bcd1898dcbca1b736c1a3a820e3850b
https://doi.org/10.1134/s1028335817050020
https://doi.org/10.1134/s1028335817050020
Publikováno v:
Doklady Physics. 62:124-127
A theoretical description of the plastic deformation of metal–graphene nanocomposites through stress-induced migration of grain boundaries is proposed. Within the micromechanical approach developed, the plastic deformation induced by this migration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2a1af168990162880a195dcab380bac
https://doi.org/10.1134/s1028335817030016
https://doi.org/10.1134/s1028335817030016
Autor:
Ilya A. Ovid'ko, S. V. Bobylev
Publikováno v:
Acta Materialia. 124:333-342
Convergence and splitting transformations of grain boundaries (GBs) migrating under stress in nanocrystalline and ultrafine-grained materials are theoretically described. With the disclination model of GB junctions, the elastic interaction between mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f63ee842f10f2dedf4445d7e87b75e8d
https://doi.org/10.1016/j.actamat.2016.11.026
https://doi.org/10.1016/j.actamat.2016.11.026
Autor:
A. G. Sheinerman, Ilya A. Ovid'ko
Publikováno v:
Acta Materialia. 121:117-125
The free surface effects on grain boundary (GB) deformation mechanisms mediated by GB sliding and migration processes in nanocrystalline materials are theoretically described. Particular attention is devoted to the specific features of the GB sliding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0771f1c6487aa5903e36d1ca54da72e
https://doi.org/10.1016/j.actamat.2016.08.082
https://doi.org/10.1016/j.actamat.2016.08.082
Publikováno v:
Physics of the Solid State. 58:1819-1825
A theoretical model that effectively describes stress-driven migration of low-angle tilt grain boundaries in nanocomposites with nanocrystalline or ultrafine-grained metallic matrices containing ensembles of coherent nanoinclusions has been developed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fc3016a61ee37c5e12b8e8e4e17bf94
https://doi.org/10.1134/s1063783416090195
https://doi.org/10.1134/s1063783416090195
Publikováno v:
Doklady Physics. 61:403-406
The deformation and fracture of graphene sheets containing 555–777 defects have been investigated by molecular dynamics simulations. Each such defect is a divacancy forming a localized configuration of three pentagonal and three septangular cells o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e687113d176e93271a78cac9d058444e
https://doi.org/10.1134/s1028335816080115
https://doi.org/10.1134/s1028335816080115