true of fals e A 1030 steel cooled from the austenite phase

true of fals

e) A 1030 steel cooled from the austenite phase field to the ferrite + cementite field would have proeutectoid ferrite, eutectoid ferrite, and cementite present in the final microstructure.
f) Eutectic solder alloys are typically stronger than hypo- or hyper-eutectoid solders in the same system.
g) Metastable systems are time independent and are obtained during equilibrium condition.
h) Steel alloys are commonly divided into families such as low-carbon or medium-carbon based on the amount of carbon in the steel.

Solution

e) True  A 1030 steel cooled from the austenite phase field to the ferrite + cementite field would have proeutectoid ferrite, eutectoid ferrite, and cementite present in the final microstructure.

f) True Eutectic solder alloys are typically stronger than hypo- or hyper-eutectoid solders in the same system.

g) True Metastable systems are time independent and are obtained during equilibrium condition.

h) It is True that Steel alloys are commonly divided into families such as low-carbon or medium-carbon based on the amount of carbon in the steel