| Abstract Scope |
Light alloys are frequently exposed to harsh environments in service. X-ray micro and nanotomography provide a unique means of characterization damage in materials non-destructively. In this talk, I will describe experiments that address the critical link between processing and microstructural evolution. Quantification of corrosion mechanisms in aluminum alloys, by lab-scale diffraction contrast tomography, as well as dynamic measurements by x-ray synchrotron tomography will be described. In particular, precipitate location, size, and composition play a pivotal role in determining the initiation and propagation of corrosion damage light alloys. Four-dimensional (4D) in situ experiments conducted on different aging conditions yielded extremely interesting insights into the complex interplay between precipitates, grain boundaries, and inclusions. The correlative microscopy approach can be used to obatin a multi-faceted understanding of microstructural evolution, damage initiation, and progression in these alloys, which will be discussed. |