About this Abstract |
Meeting |
5th International Congress on 3D Materials Science (3DMS 2021)
|
Symposium
|
5th International Congress on 3D Materials Science (3DMS 2021)
|
Presentation Title |
Combined Strain Measurements and 3D Tomography in Inconel 718 |
Author(s) |
Marie Charpagne, Jean-Charles Stinville, Toby Francis, Andrew T Polonsky, McLean Echlin, Patrick G Callahan, Valery Valle, Tresa M Pollock |
On-Site Speaker (Planned) |
Marie Charpagne |
Abstract Scope |
Damage during mechanical loading of polycrystalline metallic alloys involves plastic strain localization at the scale of individual grains. The development of predictive models for monotonic and cyclic loading requires quantitative assessment of these processes at the sub-micron scale. This study aims at understanding strain localization processes in relation to the 3D microstructure in the structural alloy Inconel 718, by combining Digital Image Correlation data acquired in a Scanning Electron Microscope with 3D EBSD data. The use of discontinuity tolerant DIC codes enables to resolve the individual components at each slip band, which when coupled to crystallographic data, enables to determine the active slip system. To do so, multi-modal data merging techniques have been employed to recombine the strain localization information with the 3D grain structure and crystallographic orientations, acquired using TriBeam tomography. Quantitative correlations between microstructure features (grain boundaries, twin boundaries, triple junctions, quadruple points, etc.) will be discussed. |
Proceedings Inclusion? |
Definite: Other |