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A continuum model describing the reverse grain-size dependence of the strength of nanocrystalline metals

Abstract:

The breakdown of the Hall-Petch relation in the grain-size strength dependence of nanocrystalline metals has been rationalized by the activation of deformation mechanisms taking place at the grain boundary which compete with crystal plasticity and become dominant when grain sizes are sufficiently small. In this work, we develop a continuum description of the effective response of nanocrystalline metals. The model is based on a finite element formulation of the continuum three-dimensional prob...

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Publisher copy:
10.1080/14786430701230252
Journal:
Philosophical Magazine
Volume:
87
Issue:
17
Pages:
2541-2559
Publication date:
2007-01-01
DOI:
EISSN:
1478-6443
ISSN:
1478-6435
Language:
English
Pubs id:
pubs:367467
UUID:
uuid:ab2979b7-7182-408d-9322-c7e72c7793c1
Local pid:
pubs:367467
Source identifiers:
367467
Deposit date:
2013-11-16

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