1. cementite
2. free carbon
3. flakes
4. nodular aggregates of graphite
nodular aggregates of graphite
1. hard
2. high in strength
3. highly resistant to corrosion
4. heat treated to change its properties
highly resistant to corrosion
1. hard
2. soft
3. ductile
4. tough
hard
1. It contains carbon of the order of 0 to 0.25%
2. It melts at 1535°C
3. It is very soft and ductile
4. It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling
It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling
1. paramagnetic
2. ferromagnetic
3. ferroelectric
4. dielectric
ferromagnetic
1. allotropic change
2. recrystallization
3. heat treatment
4. precipitation
allotropic change
1. no graphite
2. a very high percentage of graphite
3. a low percentage of graphite
4. graphite as its basic constituent of composition
no graphite
1. high tensile strength
2. its elastic limit close to the ultimate breaking strength
3. high ductility
4. all of the above
its elastic limit close to the ultimate breaking strength
1. free form
2. combined form
3. nodular form
4. partly in free and partly in combined state
partly in free and partly in combined state
1. tenacity
2. brittleness
3. plasticity
4. hardness
hardness