| Abstract Scope |
In-situ neutron and synchrotron X-ray diffraction deliver unique insights into the microstructural evolution of metals under exotic conditions. Comprehensive exploitation of scattering signals include multi-dimensional reciprocal-space studies on a number of individual grains and local information. For each constituting phase, their statistics and temporal behavior reveal information about grain growth or refinement, subgrain formation, static and dynamic recovery and recrystallization, slip systems, and twinning. As grains become ultra-fine, such individual grain information is lost, however opportunities exist to work with finer beams. They can reveal local information in heterogeneous materials, such as phase composition, lattice parameters, strain, texture, crystalline disorder etc.
This presentation reviews examples on heat treatment after severe plastic deformation, global and local texture, and mechanically induced phase transformation while future potential for such characterization and development is risen. |