Strain Hardening of 09G2S Steel at Elevated Temperatures

The mechanical properties of 09G2S steel are determined during tensile tests of samples in various structural states at temperatures of 20–400°C and strain rates from 5 × 10–2 to 5 × 10–5 1/s. The test results are shown to be significantly determined by dynamic strain aging. A correlation between the dynamic strain aging intensity and the temperature, the strain rate, and the structural state of the material is found.