Consider the phase diagram of the Fe-Fe3C system shown in Figure 7.1. Starting of this diagram,... 1 answer below »

Consider the phase diagram of the Fe-Fe3C system shown in Figure 7.1. Starting

of this diagram, calculate:

(a) The quantities (in g) of ferrite, cementite and perlite (... perlite, remember, is not a

phase, but a microstructure ...) present in a system consisting of 1 kg of steel with 0.5

% C (by mass) at 725 °C.

(b) The quantities (in g) of ferrite, cementite and perlite (... perlite, remember, is not a

phase, but a microstructure ...) present in a system consisting of 1 kg of steel with 0.9

% C (by mass) at 725°C

Consider that the graphs presented in Figure 7.2 are valid to represent the

mechanical properties at room temperature of steels whose compositions are

mentioned in items (a) and (b) - that is, steels with 0.5% C and 0.9% C compositions (both

mass compositions).

(c) What would be the tensile strength limit values , yield (strength) and ductility (elongation) for these two steels?

(d) Explain the differences observed in the values ​​determined in item ©, taking into account based on the relative percentages of the phases and their respective chemical compositions.