... distinguishing feature of the high- temperature strain. Fig. 4. 1 The physical model of the steady-state strain at high temperature. The sub-boundaries are built of two systems:the pure screw and the 60◦-dislocation ... (symbols and dotted lines) and computed data (solid curves); 1, 813K;2, 923K. 46 4 Physical Mechanism of Strain at High TemperaturesFig. 4. 2 Scheme of energetic barriers for the motion of the ... work, dA, and facilitates the generationFig. 4. 3 Scheme of energetic barriers for the motion of thescrew dislocation with vacancy-absorbing jogs. High Temperature Strain of Metals and Alloys, ...