analysis

1. Microstructural and textural developmentinan extra low carbon steel duringwarm rolling
MICROSTRUCTURAL DEVELOPMENT DURING WARMROLLING OF AN IF STEEL
Effectof RollingTemperature onthe DeformationandRecrystallizationTexturesof Warm-Rolled
Steels

2. 1. completely recrystallized ferrite grains of almost polygonal shape are
obtained after rolling at the high temperature of 800 °C.
2. At 700 °C the microstructure shows recrystallized areas, pancake
shaped grains and dark patches of deformation bands indicating
incomplete recrystallization
3. deformed and elongated ferrite grains with profusion of deformation
bands are obtained at lower rolling temperatures (600 and 500 °C);

3. Higher magnification SEM micrographs of the samples reveal the
deformation bands within grains clearly
Evidently, the density of deformation bands is substantially high when
rolling temperature is low and it decreases rapidly with increase in the
rolling temperature, and ultimately becomes effectively zero at 800 °C.
2. Effects of hot and warm rolling on
microstructure, texture and properties of
low carbon steel

4. SIBM (strain
induced boundary migration). The
mech-
anism involves the bulging or
migration of part of a pre-existing
grain boundary to the interior of a
more deformed grain, leaving

5. behind a region virtually free of
dislocations
3.
MICROSTRUCTURAL DEVELOPMENT
DURING WARM ROLLING OF AN IF
STEEL