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Updated: Jul 2, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Ultrafast dynamic compression technique to study the kinetics of phase transformations in bismuth
R F Smith1, J H Eggert, M D Saculla
1Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550, USA.
Abstract:
Preheated Bi (296-532 K) was ramp compressed with 15-35 ns rise times to a peak stress of approximately 11 GPa to explore structural phase-transformation kinetics under dynamic loading conditions. At high strain rates, epsilon[over ]>5 x 10;{6} s;{-1}, deviation from equilibrium phase boundaries suggests that compression time scales are comparable to the new phase incubation period. The dependence of DeltaP/kT on epsilon[over ] is consistent with a thermally activated transformation.

