Question: 42. The binary system A-B with Tb>Ta (where Tb is the melting temp of B and Ta is the melting temp of A) is known

42. The binary system A-B with Tb>Ta (where Tb is the melting temp of B and Ta is the melting temp of A) is known to have two three-phase invariant reactions of type: L--> alpha + AB at T1 and L--> AB + beta at T2 Where T1Ta. If AB (at 50 wt.% B) is a congruently melting stoichiometric intermediate compound at a temperature higher than Tb, sketch a possible phase diagram in which there is partial solid solubility of B in A and A in B. Label all the phase fields.

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