@misc{stark_lattice_strain_2020, author={Stark, A., Rackel, M., Pyczak, F.}, title={Lattice strain evolution during hot forming of gamma TiAl alloys studied with synchrotron X-ray radiation}, year={2020}, howpublished = {conference lecture (invited): Wien (A);}, abstract = {We determined the diffraction elastic moduli of the different phases in the elastic region. During deformation of a ternary alloy (Ti-42Al-8,5Nb) at a temperature of 900 °C and a strain rate of 0.001 1/s plastic deformation starts in the beta-o phase at applied stress levels of 300-350 MPa followed by gamma phase at levels between 450-590 MPa. Load partitioning between differently oriented grains of the gamma and the alpha-2 phase was observed. Especially the hexagonal alpha-2 shows a pronounced difference between soft and hard orientations and at the beginning of the elastic-plastic region a significant load transfer onto the alpha-2 phase was observed.}, note = {Stark, A.; Rackel, M.; Pyczak, F.: Lattice strain evolution during hot forming of gamma TiAl alloys studied with synchrotron X-ray radiation. THERMEC 2020 - 11th International Conference on Processing & Manufacturing of Advanced Materials. Wien (A), 2020.}}