Two-phase model of the polycrystalline aggregate with account for grain-boundary states under quasi-static deformation

A. A. Reshetnyak, Yu P. Sharkeev

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

2 Цитирования (Scopus)

Аннотация

The recently suggested statistical theory of flow stress, including yield strength, for polycrystalline materials under quasi-static plastic deformation is developed in the framework of a two-phase model. Analytic and graphic forms of the generalized Hall-Petch relations are obtained for samples with BCC (α-phase Fe), FCC (Cu, Al, Ni) and HCP (α-Ti, Zr) crystalline lattices at T = 300 K with different values of grain-boundary (second) phase. The maximum of yield strength and respective extremal grain size of the samples are shifted by changing of the second phase. Temperature dependence in the range of 100-350 K for yield strength (using the example of Al) revealed its increase for closely packed nanocrystalline samples with the growth of temperature. An enlargement of the second phase in a sample neutralizes this property.

Язык оригиналаАнглийский
Название основной публикацииProceedings of the Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures
РедакторыVasily M. Fomin, Victor E. Panin, Sergey G. Psakhie
ИздательAmerican Institute of Physics Inc.
Том2051
ISBN (электронное издание)9780735417779
DOI
СостояниеОпубликовано - 12 дек 2018
СобытиеInternational Symposium on Hierarchical Materials: Development and Applications for New Technologies and Reliable Structures 2018 - Tomsk, Российская Федерация
Продолжительность: 1 окт 20185 окт 2018

Конференция

КонференцияInternational Symposium on Hierarchical Materials: Development and Applications for New Technologies and Reliable Structures 2018
СтранаРоссийская Федерация
ГородTomsk
Период1.10.185.10.18

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Цитировать

    Reshetnyak, A. A., & Sharkeev, Y. P. (2018). Two-phase model of the polycrystalline aggregate with account for grain-boundary states under quasi-static deformation. В V. M. Fomin, V. E. Panin, & S. G. Psakhie (Ред.), Proceedings of the Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures (Том 2051). [020251] American Institute of Physics Inc.. https://doi.org/10.1063/1.5083494