Plastic deformation through stress-induced migration of high-angle grain boundaries in metal-graphene nanocomposites

Sergey V. Bobylev, N. F. Morozov, I. A. Ovid'ko

Результат исследований: Научные публикации в периодических изданияхстатьярецензирование

4 Цитирования (Scopus)

Аннотация

A theoretical model is suggested which describes plastic flow through stress-driven migration of high-angle grain boundaries (GBs) in metal-graphene nanocomposites. In the framework of the suggested model, stress-driven GB migration gives rise to the formation of wedge disclinations at GB junctions and edges of graphene inclusions. Energy and stress characteristics of stress-driven GB migration are calculated in several metals (aluminium, nickel and Gum metal). It is found that graphene inclusions strengthen metal-graphene nanocomposites. This is well consistent with experimental data reported in literature. Also, it is revealed that graphene inclusions in metal-graphene nanocomposites either hamper or enhance unstable GB migration and thereby grain growth driven by stress, depending on inclusion length.

Язык оригиналаанглийский
Страницы (с-по)131-141
Число страниц11
ЖурналReviews on Advanced Materials Science
Том48
Номер выпуска2
СостояниеОпубликовано - 2017

Предметные области Scopus

  • Материаловедение (все)
  • Физика конденсатов

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