The influence of alloying on slip intermittency and the implications for dwell fatigue in titanium
The high precision of HEDM measurements at FAST offer new insight into the microscopic processes that cause dwell fatigue, pointing toward new alloying strategies for mitigation.
Turning Heroic Efforts Into Everyday Experiments
Driven by the insights from 3D data acquired in real-time, the creation of new characterization methods for structural metals has seen explosive growth over the past two decades. Using high-energy X-rays and new generations of detectors, like those available at CHESS, scientists can now extract higher-resolution information over larger volumes of material at rates that were only a dream several years ago
Analysis of a three-dimensional slip field in a hexagonal Ti alloy from in-situ high-energy X-ray diffraction microscopy data
For the first time, a microscale plastic strain field (also known as crystallographic slip) has been non-destructively reconstructed in 3D in a deforming alloy.
Grain-scale deformation of a high entropy alloy using synchrotron high energy diffraction microscopy
New research that exploited the unique strengths of the FAST beamline produced some of the first measurements of individual grain deformation in high entropy alloys. This data can help form accurate predictions of damage and failure processes in these emerging materials, critical for understanding their performance in real-world applications.
CHESS user examines material under thermo-mechanical loading - with goal to develop predictive material modeling
Residual stress can have a tremendous effect on the performance and overall lifetime of materials. To understand the lattice strains that result in these stresses, researchers at CHESS are able to probe their samples with high-energy X-rays while simultaneously exposing them to heat, strain, and pressure.