Engineering Materials
Chromium in steel

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

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Cyaniding is the process of

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

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Recrystallization temperature is one

At which crystals grow bigger in size
At which change of allotropic form takes place
At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated
At which crystals first start forming from molten metal when it is cooled

ANSWER DOWNLOAD EXAMIANS APP