| Abstract Scope |
Aluminum alloys are frequently exposed to harsh environments in service. Advances in experimental methods, analytical techniques, and computational approaches, have now enabled the development of in situ techniques that allow us to probe the behavior of materials in real-time. The study of microstructures under an external stimulus (e.g., stress, temperature, environment) as a function of time is particularly exciting. X-ray synchrotron micro and nano-tomography provides a wonderful means of characterization damage in materials non-destructively. In this talk, I will describe experiments and simulations that address the critical link between microstructure and corrosion behavior of metallic materials, by using a time evolved, four-dimensional (4D) virtual microstructure obtained by x-ray synchrotron tomography. Case studies on grain boundary and inclusion effects on corrosion, and stress corrosion cracking in high performance aluminum will be presented and discussed. New opportunities for x-ray microtomography, including lab-scale diffraction contrast tomography, and correlative microscopy will be highlighted. |