Polatidis, E.Sofinowski, K.Hsu, W-NVan Swygenhoven, H.2020-09-102020-09-102020-09-102019-01-0110.1088/1757-899X/580/1/012010https://infoscience.epfl.ch/handle/20.500.14299/171526WOS:000562321400010The mechanical behavior of three engineering materials is studied employing in situ deformation methods. The study covers metastable austenitic steels with different stacking fault energies during multiaxial loading, a Ti-6Al-4V alloy processed by electron beam melting during uniaxial deformation and a commercial nanocrystalline NiTi alloy during multiaxial deformation. The experimental results obtained by in situ X-ray or neutron diffraction elucidate the load transfer and phase transformation mechanisms, information that is averaged over a relatively large volume containing a statistically representative number of grains. Complementary in situ high resolution digital image correlation allows details to be revealed regarding the localized strain accommodation and slip activity with a sub-grain spatial resolution. It is demonstrated that the synergy of the different length-scale investigations provides a better understanding of the complex relationship between microstructure and deformation behavior in these materials.superelastic nitidependenceevolutionbehaviorstrainstext::conference output::conference proceedings::conference paper