Low Temperature Anomalies in the Plasticity of Cu-Ti Alloys

Low temperature anomalies in the flow stress were found for the super saturated alloys of Cu-5 at.%Ti below about 40 K. Similar anomalies were also found for the specimens decomposed spinodally. These are consistent with our previous model. The shoulders at higher temperatures on the stress-temperature curves were interpreted as corresponding to the onset of short ranged unzippings generally accompanied by the transition from over to under damping mode of dislocation oscillations.