Parameter estimation for semi-solid aluminum alloys using transient experiments
AuthorAlexandrou, Andreas N.
Georgiou, Georgios C.
Source9th International Conference on Semi-Solid Processing of Alloys and Composites, S2P 2006
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A rotating vane-cup rheometer is used to determine the rheological properties of semi-solid slurries, and a procedure is established for characterizing the rheology with emphasis given to the proper and self-consistent evaluation of the material constants.
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Alexandrou, Andreas N.; Constantinos, N.; Georgiou, Georgios C. (2008)When SSM material is subjected to a sudden transient the rate of buildup (aging) is negligible compared to the rate of breakdown (shear rejuvenation). While this is generally true, due to prolonged processing or the geometry ...
Alexandrou, Andreas N.; Florides, G. C.; Georgiou, Georgios C.; Apelian, D. (2004)An essential element for the integration of the semisolid metal (SSM) process in the production of complex commercial components is the availability of accurate mathematical and computational tools that could describe both ...
Alexandrou, Andreas N.; Georgiou, Georgios C.; Economides, Eva Athena; Modigell, M. (2016)In this work we revisit the issue of obtaining true material constants for semisolid slurries. Therefore, we consider the circular Couette flow of Herschel-Bulkley fluids. We first show how true constants can be obtained ...