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Friday 30 November 2007, 11:15-12:15
Following Meso/Microstructural Evolution in Three Dimensions by X-ray Microtomography
- đ¤ Speaker: Prof. Phil J. Withers, The School of Materials, University of Manchester
- đ Date & Time: Friday 30 November 2007, 11:15 - 12:15
- đ Venue: Gordon Lab Seminar Room, Austin Building, Dept. of Materials Science & Metallurgy
Abstract
Penetrating beams of high energy X-rays can be used to produce 3D images of meso/micro-structure. Since this can be done non destructively it is possible to follow the evolution of structure as a consequence of exposure to corrosive environments, temperature, radiation or applied loads, etc. In this talk I will present examples of situations where we have been able to improve our understanding of failure mechanisms and develop better micromechanical models including:
âĸ The propagation of cracks and crack bridging in continuous metal matrix composites
âĸ Tracking the movement of powder during powder processing to form a green state and finally a fully dense consolidated product
âĸ The evolution of stress corrosion cracks
âĸ The crushing of cellular structures such as bone
âĸ The simulated radio-degradation of nuclear graphite
Series This talk is part of the Gordon Lab Seminar Series series.
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