Construct the phase diagram for hypothetical metals A and B, between 20°C (room temperature) and 700°C, given the following information:

• metal A melts at 480°C;

• the maximum solubility of B in A is 4wt% B, occurring at 420°C;

• B does not dissolve in A at room temperature;

• there is a eutectic at 420°C and 18wt%B;

• there is another eutectic at 475°C and 42wt%B;

• an intermetallic compound, AB, exists at 30wt%B; it melts at 525°C;

• metal B melts at 600°C;

• the maximum solubility of A in B is 13wt% A, occurring at 475°C;

• the solubility of A in B at room temperature is 3wt% A.