Three-Dimensional Grain Growth Model Using the Phase Field Approach

About Mentors

Dr. Balasubramanimiam Radhakrishnan received his Ph.D. in Materials Science and Engineering from the University of Alabama at Birmingham in 1989. From 1979 to 1985 he worked as a staff scientist at the National Aeronautical Laboratory in Bangalore, India. Dr. Radhakrishnan joined the Metals and Ceramics Division at Oak Ridge National Laboratory in 1993 and since 1998 he is with the Computer Science and Mathematics Division.

His research includes multi-length scale modeling of processing-microstructure relationships in materials including solidification, deformation, annealing and joining. He has developed several mesoscale models to predict the evolution of microstructure and texture during thermo-mechanical processing of metallic materials. He has roughly 50 journal and conference publications and several invited presentations in various aspects of materials processing covering both experimental and computational sides.

Dr. Radhakrishnan is a member of AWS, TMS, and MRS and is an active participant in the Computational Materials Science Network (CSMN) projects in collaboration with Carnegie Mellon University and Argonne National Laboratory. He is a member of the Review Board for Welding Journal and a member of the TMS Subcommittee on Modeling and Simulation.

Dr. Gorti Sarma received his B. Tech. in Mechanical Engineering in 1990 from the Indian Institute of Technology in Madras, India, and his M.S. in Mechanical Engineering in 1995 from Cornell University in Ithaca, NY. He joined Oak Ridge National Laboratory as a post doctoral research associate in the Metals and Ceramics Division in 1995, and is currently a research staff member in the Computer Science and Mathematics Division.

Dr. Sarma research interest include a variety of disciplines related to the mechanics and computational modeling of the thermo mechanical processing of metals, including continuum mechanics, inelasticity, polycrystalline plasticity internal state variable and micromechanical constitutive models, formulations for finite deformations, finite element analysis, high performance and parallel computing. He has published over 30 research articles in various journals and conference proceedings. He is a member of the Minerals, Metals, and Materials Society (TMS).