Process of Austempering results in

Engineering Materials
Process of Austempering results in

Formation of bainite structure

Lamellar layers of carbide distributed throughout the structure

Martenistic structure

Carburised structure

Formation of bainite structure

Lamellar layers of carbide distributed throughout the structure

Martenistic structure

Carburised structure

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Engineering Materials
Drop forging dies contain carbon of the order of

0.7 to 0.9%

0.6 to 0.7%

0.25 to 0.5%

0.1 to 0.2%

0.7 to 0.9%

0.6 to 0.7%

0.25 to 0.5%

0.1 to 0.2%

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Engineering Materials
When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of

Pearlite and cementite

Ferrite and pearlite

Mainly ferrite

Mainly pearlite

Pearlite and cementite

Ferrite and pearlite

Mainly ferrite

Mainly pearlite

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Engineering Materials
Pick up wrong statement about wrought iron

It contains carbon of the order of 0 to 0.25%

It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling

It melts at 1535°C

It is very soft and ductile

It contains carbon of the order of 0 to 0.25%

It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling

It melts at 1535°C

It is very soft and ductile

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Engineering Materials
Malleable cast iron

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

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

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. It is soft, tough, and easily machined metal

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

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

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. It is soft, tough, and easily machined metal

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Engineering Materials
Corrosion resistance of steel is increased by addition of

Tungsten, molybdenum, vanadium, chromium

Sulphur, phosphorus, lead

Vanadium, aluminium

Chromium and nickel

Tungsten, molybdenum, vanadium, chromium

Sulphur, phosphorus, lead

Vanadium, aluminium

Chromium and nickel

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Engineering Materials

Engineering Materials Process of Austempering results in

Engineering Materials Drop forging dies contain carbon of the order of

Engineering Materials When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of

Engineering Materials Pick up wrong statement about wrought iron

Engineering Materials Malleable cast iron

Engineering Materials Corrosion resistance of steel is increased by addition of

Engineering Materials
Process of Austempering results in

Engineering Materials
Drop forging dies contain carbon of the order of

Engineering Materials
When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of

Engineering Materials
Pick up wrong statement about wrought iron

Engineering Materials
Malleable cast iron

Engineering Materials
Corrosion resistance of steel is increased by addition of