|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation Mechanisms
||In-situ Neutron Diffraction Studies of Load Path Changes in 316L and AZ31
||Tobias Panzner, Tram Trang, Karl Sofinowski, Steven Van Petegem, Manas V Upadhyay, Helena Van Swygenhoven
|On-Site Speaker (Planned)
A multiaxial deformation setup for insitu mechanical deformation studies using neutron diffraction [Acta Mat 105 (2016)404] is used to study load path changes. The biaxial rig implemented in the time of flight neutron diffraction beamline POLDI of the Swiss neutron source uses cruciform samples that can be deformed in-plane in free chosen force combinations up to the limits of 50 kN and 100 kN of the 2 loading axis. The macroscopic strain is measured contact free by a 3D-DIC system. The influence of the cruciform geometries on the evolution of the stresses in the gauge area is discussed and backed up with finite element simulations. The evolution of inter- and intra-granular strains during various load path changes is studied by following the lattice strains and the peak broadening for 316L stainless steel and AZ31. The results are discussed in terms of the microstructural evolution, complementary analyzed by EBSD.
||Planned: Supplemental Proceedings volume