Engineering Materials
Process of Austempering results in

Formation of bainite structure
Carburised structure
Martenistic structure
Lamellar layers of carbide distributed throughout the structure

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Engineering Materials
Dow metal contains

90% aluminium and 90% copper
94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg
90% magnesium and 9% aluminium with some copper

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Engineering Materials
Nickel in steel

Improves wear resistance, cutting ability and toughness
Improves cutting ability and reduces hardenability
Gives ductility, toughness, tensile strength and anti-corrosion properties
Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties

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Engineering Materials
Carbon steel is

Refined from cast iron
Extensively used for making cutting tools
An alloy of iron and carbon with varying quantities of phosphorus and sulphur
Made by adding carbon in steel

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