Technique | Steels | Steel composition (wt%) | Ferrite grain size achieved (%) | Log, strain imposed (%) | Deformation temperature (K) | Heat treatment after deformation |
ECAP | Plain low carbon steel | 0.08C-0.42Mn-0.18Si | 0.2 | 3.0 | 293 | AC |
Plain low carbon steel | 0.15C-1.1Mn-0.25Si | 0.3 in thickness | 4.0 | 623 | AC | |
Ti-V low carbon steel | 0.1C-1.59Mn-0.29Si-0.02Ti-0.05V | ~0.3 thickness | 1.0 | 573 | AC | |
Ferrite-austenite dual phase steel | 0.15C-1.06Mn-0.25Si | 0.8 | 4.0 | 773 | 1003 K × 10 min WQ | |
ARB | Ti-added IF steel | 0.003C-0.15Mn < 0.01Si-0.049Ti | 0.4 | 5.6 | 773 | WC |
HPT | Plain low carbon steel | ~0.7C~1.0Mn~0.3 Si | 0.01 | Shear than 300, log strain 0.45 | 293 | AC |
DRX* during hot deformation | Micro-alloyed steel | 0.11C-1.45Mn-0.34Si-0.068Nb | 2-5 | Final rolling 2.3 - 3.6 | 1153 - 1033 | AC |
Strain-induced ferrite transformation | Plain low carbon steel | 0.06C-0.59Mn | 1.0 (strip surface) | 0.36 | 1053 | AC |
Deformation in the inter-critical region | Plain low carbon steel | 0.17C-1.32Mn-0.44Si-0.15Nb | 2.1 | 2.3 | 973 | WQ |
Warm rolling in the ferrite region | Ti-added IF steel | 0.003C-0.15Mn-0.025Si-0.065Ti | 1-3 | Final rolling ~0.55 × 5 | Below A*r1 | WQ |
DRX* of ferrite during warm deformation | Ultra-low carbon steel | 0.0016C-0.1Si-0.03Mn | - | 4.0 | 723 - 823 (lower than A*c1) 823 | WQ |
Pronounced recovery of ferrite during warm deformation and annealing | Plain medium carbon steel | 0.22C-0.21Si-0.74Mn | 1.3 | 1.6 at strain rate of 0.01 s−1 | 823 | 823 K × 120 min |
Cold deformation and annealing of martensitic steel | Martensitic steel | 0.13C-0.37Mn-0.01Si | 0.18 | 0.8 | 293 | 773 K × 30 min |