|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||High Entropy Alloys IV
||High Energy X-ray Diffraction Measurements during Tensile Loading and Hydrogen Embrittlement of a High Entropy Alloy, Al0.1CoCrFeNi
||Matthew Connolly, Elizabeth Drexler, Andrew Slifka
|On-Site Speaker (Planned)
We report high-spatial resolution synchrotron radiation measurements of the strain field near a crack in a compact tension high entropy alloy (Al0.1CoCrFeNi) specimen performed at the Cornell High Energy Synchrotron Source (CHESS). High energy synchrotron measurements allowed for the complete reconstruction of illuminated grains. We explore the stress/strain response at the crack tip through these reconstructed grains during tensile loading and crack advance in an effort to gain a fundamental understanding of the crack tip deformation response. Once quantified, the state of deformation (strain) and stress at a crack tip may be used to accurately model fracture and fatigue mechanisms. Fatigue measurements in air and in a hydrogen environment are also presented which will provide insight into the effect of hydrogen on the high entropy alloy.
||Planned: A print-only volume