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