Nv. Isaev et al., PLASTICITY OF AL-LI ALLOYS IN THE TEMPERA TURE-RANGE 0.5-300-K - LOW-TEMPERATURE ANOMALIES, DEFORMATION INSTABILITY, SUPERCONDUCTING TRANSITION EFFECT, Fizika nizkih temperatur, 20(8), 1994, pp. 832-839
The plastic deformation of binary alloys Al-3.8, 7.0, 10.4 at.% Li is
studied on constant-rate tension at temperatures to 0.5 K. The tempera
ture dependences of the plasticity parameters are investigated. The lo
w-temperature features of these dependences are found and their nature
is discussed. The influence of deformation, temperature and the super
conducting transition on the serrated flow of these alloys is studied
at 4.2-0.5 K. The experimental results are qualitatively compared with
current theories of thermomechanical deformation instability.