|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques II
||In-situ Residual Strain Monitoring in Metal Additive Manufacturing
||Sandra Cabeza Sanchez, Burak Ozcan, Thilo Pirling, Thomas Hansen, Ines Puente Orench
|On-Site Speaker (Planned)
||Sandra Cabeza Sanchez
The mechanical performance of Metal Additive Manufacturing (MAM) components is potentially affected by complex gradients of residual stresses in 3D. These initial state would evolve in jet unknown trends under in-operando conditions. Therefore, AM structural components require the implementation of new characterization approaches towards their safe application.
Neutron strain diffraction enhances mapping of the full strain tensor within the bulk of polycrystalline materials. This non-destructive technique allows the investigation of complete development cycles on a same sample and also in-situ/operando investigations.
MAM research at SALSA (Stress Analyser for Large Scale engineering Applications) will be presented encompassing critical aspects in residual stress analysis: strain monitoring during direct energy deposition, influence of the scanning strategy, the non- symmetrical nature stress fields with respect to the geometry and the rotation of principal stress directions. A broad overview of reference d0 for strain-stress calculation is discussed between neutron powder diffractometers.
||Additive Manufacturing, Characterization, Mechanical Properties