Introduction
Experimental
Rod-shaped semi-product production
Methods of investigation
Experimental results and discussion
Microstructure and mechanical properties of long-length rods
No. | Processing regimes | UTS (MPa) | Yield stress (MPa) | Elongation (%) | Uniform elongation (%) |
---|---|---|---|---|---|
1 | As-received (according to the certificate) | 700 | 530 | 25 | – |
2 | UFG (ECAP + TMT) | 1240 ± 10 | 1150 ± 20 | 11 ± 1 | 1.6 |
3 | UFG (ECAP + TMT + annealing 350 °C, 1 h) | 1230 ± 10 | 1170 ± 30 | 12 ± 1 | 4.5 |
4 | UFG (ECAP + TMT + annealing 350 °C, 6 h) | 1250 ± 10 | 1100 ± 10 | 13 ± 1 | 5.1 |