Mechanical Behavior of Light Alloys with Bimodal Grain Size Distribution

Mechanical Behavior of Light Alloys with Bimodal Grain Size Distribution

Manylion Llyfryddiaeth
Parent link:Applied Mechanics and Materials: Scientific Journal
Vol. 756 : Mechanical Engineering, Automation and Control Systems (MEACS2014).— 2015.— [P. 205-213]
Prif Awdur: Skripnyak V. A. Vladimir Albertovich
Awdur Corfforaethol: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра физики высоких технологий в машиностроении (ФВТМ) Научно-образовательная лаборатория "Динамическое моделирование и контроль ответственных конструкций" (НОЛ ДМиК ОК)
Awduron Eraill: Skripnyak E. G., Skripnyak N. V.
Crynodeb:Title screen
Deformation and damage at the meso-scale level in representative volumes (RVE) of light ultrafine grained (UFG) alloys with distribution of grain size were simulated in wide loading conditions. The computational models of RVE were developed using the data of structure researches aluminum and magnesium UFG alloys on meso-, micro -, and nanoscale levels. The critical fracture stress on meso-scale level depends not only probabilistic of grain size distribution in RVE but relative volumes of coarse grains. Microcracks nucleation is associated with strain localization in UFG partial volumes in alloys with bimodal grain size distribution. Microcracks branch in the vicinity of coarse and ultrafine grains boundaries. It is revealed that the occurrence of bimodal grain size distributions causes the increasing of UFG alloys ductility, but decreasing of the tensile strength. The distribution the shear stress and the local particle velocity takes place at mesoscale level under dynamic loading of UFG alloys with bimodal grain size. The increasing of fine precipitations concentration not only causes the hardening but increasing of ductility of UFG alloys with bimodal grain size distribution.
Режим доступа: по договору с организацией-держателем ресурса
Iaith:Saesneg
Cyhoeddwyd: 2015
Cyfres:Material Engineering and Technologies
Pynciau:
электронный ресурс
труды учёных ТПУ
пластичность
разрушения
механическое поведение
многомасштабное моделирование
Mynediad Ar-lein:http://dx.doi.org/10.4028/www.scientific.net/AMM.756.205
Fformat: Electronig Pennod Llyfr
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=641316

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