Please use this identifier to cite or link to this item:
http://hdl.handle.net/11375/21568
Title: | Quantitative Assessment of Deformation-Induced Damage in a Semisolid Aluminum Alloy via X-ray Microtomography |
Authors: | Phillion, A.B. Lee, P.D. Maire, E. Cockcroft, S.L. |
Department: | Materials Science and Engineering |
Keywords: | Semi-solid;Deformation structure;X-ray micro tomography;Hot tearing |
Publication Date: | Oct-2008 |
Publisher: | Springer |
Citation: | Phillion, A. B., et al. "Quantitative assessment of deformation-induced damage in a semisolid aluminum alloy via X-ray microtomography." Metallurgical and Materials Transactions A 39.10 (2008): 2459-2469. |
Abstract: | Semi-solid tensile testing combined with x-ray micro-tomography (XMT) was used to characterize the development of internal damage as a function of strain in an aluminum-magnesium alloy, AA5182. Novel techniques were developed to allow the quantification of both the size evolution and orientation of the damage to determine mechanisms controlling the early stage growth and localization. During the initial stages of semi-solid deformation, strain was observed to be accommodated by both the growth of as-cast porosity and the detection of new damage-based voids. As the volume fraction of damage increases, the growth of voids occurs in an orientation perpendicular to the loading direction, both through expansion within the grain boundary liquid and void coalescence. The damage then localizes, causing failure. |
URI: | http://hdl.handle.net/11375/21568 |
Identifier: | 10.1007/s11661-008-9584-4 |
Appears in Collections: | Materials Science and Engineering Publications |
Files in This Item:
File | Description | Size | Format | |
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2008_MMTA_Phillion_etal..pdf | 941.6 kB | Adobe PDF | View/Open |
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