Cobalt in steel | EXAMIANS

Engineering Materials
Cobalt in steel

Improves cutting ability and reduce hardenability

Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties

Improves wear resistance, cutting ability and toughness

Gives ductility, toughness, tensile strength and anti corrosion property

Improves cutting ability and reduce hardenability

Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties

Improves wear resistance, cutting ability and toughness

Gives ductility, toughness, tensile strength and anti corrosion property

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Engineering Materials
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio

50 : 20 : 20 : 10

50 : 20 : 10 : 20

40 : 30 : 20 : 10

30 : 20 : 30 : 20

50 : 20 : 20 : 10

50 : 20 : 10 : 20

40 : 30 : 20 : 10

30 : 20 : 30 : 20

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Engineering Materials
The cupola is used to manufacture

Cast iron

Pig iron

Wrought iron

Steel

Cast iron

Pig iron

Wrought iron

Steel

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Engineering Materials
Sulphur in cast iron

Makes the iron soft and easily machinable

Increases hardness and brittleness

Aids fusibility and fluidity

Make the iron white and hard

Makes the iron soft and easily machinable

Increases hardness and brittleness

Aids fusibility and fluidity

Make the iron white and hard

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Engineering Materials
A coarse grained steel

Is more ductile and has a less tendency to distort during heat treatment

Is more ductile and has a greater tendency to distort during heat treatment

Is less tough and has a greater tendency to distort during heat treatment

Is less tough and has a less tendency to distort during heat treatment

Is more ductile and has a less tendency to distort during heat treatment

Is more ductile and has a greater tendency to distort during heat treatment

Is less tough and has a greater tendency to distort during heat treatment

Is less tough and has a less tendency to distort during heat treatment

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Engineering Materials
Grey cast iron

Is produced by annealing process. I is soft, tough and easily machined metal

Is also known as chilled cast iron is obtained by cooling rapidly. It is almost unmachinable

Is produced by small additions o magnesium (or cerium) in the ladle Graphite is in nodular or spheroidal form and is well dispersed throughout the material

Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron

Is produced by annealing process. I is soft, tough and easily machined metal

Is also known as chilled cast iron is obtained by cooling rapidly. It is almost unmachinable

Is produced by small additions o magnesium (or cerium) in the ladle Graphite is in nodular or spheroidal form and is well dispersed throughout the material

Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron

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Engineering Materials

Engineering Materials Cobalt in steel

Engineering Materials Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio

Engineering Materials The cupola is used to manufacture

Engineering Materials Sulphur in cast iron

Engineering Materials A coarse grained steel

Engineering Materials Grey cast iron

Engineering Materials
Cobalt in steel

Engineering Materials
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio

Engineering Materials
The cupola is used to manufacture

Engineering Materials
Sulphur in cast iron

Engineering Materials
A coarse grained steel

Engineering Materials
Grey cast iron