Indentation Size Effect and the Hall-Petch ‘Law’
نویسندگان
چکیده
منابع مشابه
The Hall-Petch effect as a manifestation of the general size effect.
The experimental evidence for the Hall-Petch dependence of strength on the inverse square-root of grain size is reviewed critically. Both the classic data and more recent results are considered. While the data are traditionally fitted to the inverse square-root dependence, they also fit well to many other functions, both power law and non-power law. There have been difficulties, recognized for ...
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The fracture of polycrystalline graphene is explored by performing molecular dynamics simulations with realistic finite-grain-size models, emphasizing the role of grain boundary ends and junctions. The simulations reveal a ~50% or more strength reduction due to the presence of the network of boundaries between polygonal grains, with cracks preferentially starting at the junctions. With a larger...
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ژورنال
عنوان ژورنال: Materials Science Forum
سال: 2010
ISSN: 1662-9752
DOI: 10.4028/www.scientific.net/msf.662.13