The role of the excess volume at the nucleation of plastic deformation in metals

Dmitrij S. Kryzhevich, Aleksandr V. Korchuganov, Konstantin P. Zolnikov, Sergei G. Psakhie

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Аннотация

The computer simulation results on the atomic structure of the copper crystallite and its behavior in nanoindentation demonstrate the key role of local structural transformations in nucleation of plasticity. The generation of local structural transformations can be considered as an elementary event during the formation of higher scale defects, including partial dislocations and stacking faults. The cause for local structural transformations, both direct fcc-hcp and reverse hcp-fcc, is an abrupt local increase in atomic volume. A characteristic feature is that the values of local volume jumps in direct and reverse structural transformations are comparable with that in melting and lie in the range 5-7 %.

Язык оригиналаАнглийский
Название основной публикацииProceedings of the 8th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2015
ИздательInternational Center for Numerical Methods in Engineering
Страницы1011-1019
Число страниц9
ISBN (печатное издание)9788494424465
СостояниеОпубликовано - 2015
Событие13th International Conference on Computational Plasticity, COMPLAS 2015 - Barcelona, Испания
Продолжительность: 1 сен 20153 сен 2015

Другое

Другое13th International Conference on Computational Plasticity, COMPLAS 2015
СтранаИспания
ГородBarcelona
Период1.9.153.9.15

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Theoretical Computer Science

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