a r t i c l e i n f o a b s t r a c t Classical Hall-Petch relation for large grained polycrystals is usually derived using the model of dislocation pile-up first investigated mathematically by Nabarro and coworkers. In this paper the mechanical properties of nanocrystalline materials are reviewed,
β¦ LIBER β¦
A model of Hall-Petch relationship in nanocrystalline materials
β Scribed by Li, S.; Sun, L.; Wang, Z.
- Book ID
- 122344237
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 381 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0965-9773
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We propose a composite model to explain the phenomena of strength softening with decreasing the grain size, which was reported in some nanocrystalline (nc) materials. We assume that a nc material consists of a grain interior and an amorphous grain-boundary layer. The grain interior deforms elastical