Time-resolved synchrotron tomographic quantification of deformation-induced flow in a semi-solid equiaxed dendritic Al–Cu alloy. (1st July 2015)

• Record Type: Journal Article
• Authors: Cai, B.; Karagadde, S.; Rowley, D.; Marrow, T.J.; Connolley, T.; Lee, P.D.
• Is Part Of: Scripta materialia. Volume 103(2015)
• Page Start: 69
• Page End: 72
• Publication Date: 2015-07-01
• Subjects: Semi-solid deformation -- Segregation -- Liquid flow -- X-ray tomography; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.03.011
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : The rheology of semi-solid alloys has been studied by a novel in situ tomographic technique. Via extruding an equiaxed Al–15 wt.%Cu alloy, the inhomogeneous coherent compression of the α-Al grains was quantified, including the interdendritic channel closure and formation of a liquid extrudate. This investigation not only provides important insights into the microstructural changes occurring during semi-solid deformation, but also offers a validation benchmark for segregation and rheological models.