Engineering Materials
Addition of silicon to aluminium results in

One of the best known age and precipitation hardening systems
Improvement of corrosion resistance
Improving machinability
Improvement of casting characteristics

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Engineering Materials
Cyaniding is the process of

Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness
Dipping steel in cyanide bath
Reacting steel surface with cyanide salts
Obtaining cyanide salts

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