THE TENSILE PROPERTIES OF URANIUM IN THE INELASTIC RANGE OF STRESS

Tensile tests were made on specimens of uranium at strain rates varying from 0.0003 min^-1 to 0.003 min^-1 and at temperatures from 25°C to 300°C to study the effect of these variables on the strain hardening of the metal. At room temperatures an increase tn yield strength of 100 per cent may be induced by a prior loading into the plastic range. Within the limits studied the effect of rate of strain upon strain hardening is negligible. Other factors being equal, the potential strain hardening decreases with an increase in temperature. The data are presented in tables and on graphs.