Engineering Materials Gamma-iron occurs between the temperature ranges of 900°C to 1400°C 400°C to 600°C 600°C to 900°C 1400°C to 1530°C 900°C to 1400°C 400°C to 600°C 600°C to 900°C 1400°C to 1530°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium in steel Improves cutting ability and reduces hardenability Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials There are fourteen atoms in a unit cell of Body centered cubic space lattice None of these Close packed hexagonal space lattice Face centered cubic space lattice Body centered cubic space lattice None of these Close packed hexagonal space lattice Face centered cubic space lattice ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Machining properties of steel are improved by adding Vanadium, aluminium Silicon, aluminium, titanium Sulphur, lead, phosphorous Chromium, nickel Vanadium, aluminium Silicon, aluminium, titanium Sulphur, lead, phosphorous Chromium, nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cobalt in steel Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties Gives ductility, toughness, tensile strength and anti corrosion property Improves cutting ability and reduce hardenability Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties Gives ductility, toughness, tensile strength and anti corrosion property Improves cutting ability and reduce hardenability Improves wear resistance, cutting ability and toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Vanadium in high speed steels Forms very hard carbides and thus increases wear resistance Provides high hot hardness Promotes decarburisation Promotes retention of austenite Forms very hard carbides and thus increases wear resistance Provides high hot hardness Promotes decarburisation Promotes retention of austenite ANSWER DOWNLOAD EXAMIANS APP
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