Unprecedented grain size effect on stacking fault width | Zendy

Abigail Hunter | Zendy; Irene J. Beyerlein | Zendy

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Unprecedented grain size effect on stacking fault width

Author(s) -

Abigail Hunter,

Irene J. Beyerlein

Publication year - 2013

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4820427

Subject(s) - materials science , nucleation , grain size , grain boundary , dislocation , stacking fault , condensed matter physics , stacking , grain boundary strengthening , partial dislocations , stacking fault energy , stress (linguistics) , crystallography , metallurgy , composite material , thermodynamics , microstructure , nuclear magnetic resonance , physics , linguistics , philosophy , chemistry

Using an atomistic-phase field dislocation dynamics model, we isolate and investigate grain size and stress effects on the stacking fault width created by partial dislocation emission from a boundary. We show that the nucleation stress for a Shockley partial is governed by size of the boundary defect and insensitive to grain size. We reveal a grain size regime in which the maximum value the stacking fault width attains increases with grain size

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