Rate and temperature effects on the flow stress and tensile strength of metals

Abstract

Some new and obtained earlier experimental data on the elastic precursor decay and rise times of plastic shock waves in several metals and alloys at normal and elevated temperatures are discussed. The time range available for measurements has been expanded to picoseconds that allows approaching ultimate shear and tensile strengths and observations of general trends. Results of measurements have been transformed into dependences of plastic strain rate on the shear stress. © 2012 American Institute of Physics.