Engineering Materials In malleable iron, carbon is present in the form of Free carbon Flakes Nodular aggregates of graphite Cementite Free carbon Flakes Nodular aggregates of graphite Cementite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in cast iron Aids fusibility and fluidity Make the iron white and hard Makes the iron soft and easily machinable Increases hardness and brittleness Aids fusibility and fluidity Make the iron white and hard Makes the iron soft and easily machinable Increases hardness and brittleness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Inconel contains 80% nickel and 20% chromium 68% nickel, 29% copper and 3% other constituents 65% nickel, 15% chromium and 20% iron 80% nickel, 14% chromium and 6% iron 80% nickel and 20% chromium 68% nickel, 29% copper and 3% other constituents 65% nickel, 15% chromium and 20% iron 80% nickel, 14% chromium and 6% iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Vanadium in high speed steels Provides high hot hardness Promotes decarburisation Forms very hard carbides and thus increases wear resistance Promotes retention of austenite Provides high hot hardness Promotes decarburisation Forms very hard carbides and thus increases wear resistance Promotes retention of austenite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio 50 : 20 : 20 : 10 50 : 20 : 10 : 20 30 : 20 : 30 : 20 40 : 30 : 20 : 10 50 : 20 : 20 : 10 50 : 20 : 10 : 20 30 : 20 : 30 : 20 40 : 30 : 20 : 10 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hematite iron ore contains iron about 0.7 0.55 0.3 0.45 0.7 0.55 0.3 0.45 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS