Journal article
Microstructure of stir-cast metals
Materials science and engineering, v 65(1), pp 181-189
1984
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The non-dendritic microstructure of stircast metals is discussed in terms of the shape stability produced by a high density of growing solid particles. This high density appears to be due to the fragmentation of the initial dendrites. The model of fragmentation due to the formation and subsequent melting of high energy grain boundaries is discussed and is shown to be compatible with a wide range of microstructural observations. New observations are reported on the formation of large-angle grain boundaries in bent aluminium single crystals, on the build-up (and collapse) of a solid-like shear strength in metallic slurries as the stirring conditions are varied and on the stir casting of eutectic alloys. The behaviour of the metallic slurries is briefly compared with recent observations on the dramatic loss of strength of porous sintered powders when exposed to liquid solutions that wet the grain boundaries.
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Details
- Title
- Microstructure of stir-cast metals
- Creators
- R.D. Doherty - Drexel UniversityHo-In Lee - Korean Association Of Science and Technology StudiesE.A. Feest - United Kingdom Atomic Energy Authority
- Publication Details
- Materials science and engineering, v 65(1), pp 181-189
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1984TA00400020
- Scopus ID
- 2-s2.0-0021457940
- Other Identifier
- 991019173907704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary