Abstract Scope |
Plastic deformation is an intrinsically heterogeneous process that proceeds through iterative strain localization and delocalization processes at the micro-scale. The extent of the strain localization, however, depends on the microstructural characteristics. For example, in multi-phase alloys, strong partitioning of the strain is typically observed that governs the microscopic strain patterns that develop. Recently, development of novel in-situ scanning electron microscope deformation methods has enabled access to a realm of information regarding both microstructure and micro-strain evolution, in a coupled manner. Over the last decade, we have employed these methods to test steels, titanium alloys, high entropy alloys, and others, exploring the factors that govern strain partitioning and localization in heterostructured metals. In this talk, these results will be discussed, to provide an overview of these key factors. A further discussion point will be regarding the opportunities such data enable towards alloy and microstructure design. |