Question 1: Phase Equilibrium Diagrams – Binary System As a group, construct a Phase Equilibrium Diagram representing a binary alloy system of two elements A and B, using the following data: (a) A melts at 1280°C and B melts at 940°C (b) A is soluble in B in the solid state to the extent of 10% at 760°C and 2% at room temperature (c) B is soluble in A in the solid state to the extent of 15% at 760°C and 4% at room temperature (20°C) (d) A eutectic is formed at 760°C at a composition of 36% A Assume that the solid solution of B in A is known as ? - phase, and that the solid solution of A in B is known as ? - phase. Label all phase fields and phase boundary lines. Question 2: Phase Equilibrium Diagrams – Application: the Lever Rule From your diagram in Question 1, describe the equilibrium solidification regime of an alloy of composition 30% B, identifying specifically the phase compositions and approximate phase proportions existing at the temperature of 900°C.
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- A melts at 1280°C. - B melts at 940°C. Show more…
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