| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1448641 | Acta Materialia | 2010 | 4 Pages |
Abstract
The thermal stability of a nanocrystalline Fe–1.5 wt.% Mo powder milled with nano-SiO2 was investigated in situ by synchrotron radiation X-ray diffraction. Crystallite size is stabilized by the grain-boundary strain, therefore grain growth starts only after a certain amount of this strain has been released. The phenomenon was rationalized by a micromechanics approach, which considers the equilibrium between forces acting on the grain boundary surface.
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Physical Sciences and Engineering
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Authors
A. Molinari, S. Libardi, M. Leoni, P. Scardi,