Investigating the Mechanical Behavior and Deformation Mechanisms of Ultrafine-grained Metal Films Using Ex-situ and In-situ TEM Techniques
The first objective is to carry out a systematic investigation of the mechanical behavior of NC/UFG thin films with different textures under different loading rates. This includes a novel approach to study the effect of texture-induced plastic anisotropy on mechanical behavior of the films. Efforts are made to correlate the behavior of UFG metal films and the underlying deformation mechanisms. The second objective is to understand the deformation mechanisms of UFG aluminum films using in-situ transmission electron microscopy (TEM) experiments with Automated Crystal Orientation Mapping. This technique enables us to investigate grain rotations in UFG Al films and to monitor the microstructural changes in these films during deformation, thereby revealing detailed information about the deformation mechanisms prevalent in UFG metal films.
- Author (aut): Izadi, Ehsan
- Thesis advisor (ths): Rajagopalan, Jagannathan
- Committee member: Peralta, Pedro
- Committee member: Chawla, Nikhilesh
- Committee member: Solanki, Kiran
- Committee member: Oswald, Jay
- Publisher (pbl): Arizona State University