S. Babu, Edison Welding Institute, Columbus, OH; S. David, Oak Ridge National Lab; J. Vitek, Oak Ridge National Laboratory, Oak Ridge, TN; J. W. Elmer, Lawrence Livermore National Laboratory, Livermore, CA; T. A. Palmer, The Pennsylvania State University, University Park, PA; M. Quintana, Lincoln Electric Company, Cleveland, OH

Summary: Nonequilibrium phase selection in Fe-C-Al-Mn steel welds were measured based on in-situ synchrotron time-resolved X-ray diffraction technique. Formation of nonequilibrium austenite during weld solidification was modeled using interface response function theories.