%0 conference lecture %@ %A Blankenburg, M.,Staron, P.,Stark, A.,Fischer, T.,Laipple, D.,Schell, N.,Bergmann, L.,Hilgert, N.,dos Santos, J.F.,Huber, N.,Schreyer, A.,Mueller, M. %D 2014 %J Materials Science Engineering, MSE 2014 %N %P %T In situ investigation of phase transformations in friction stir welded steels using high-energy x-ray diffraction %U %X