(Solved): Material Science Question (a) Figure 1 shows phase diagram of \( A-B \). ...

Material Science

Question

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(a) Figure 1 shows phase diagram of \( A-B \). Based on this phase diagram, answer the following questions. (i) What is the melting temperature of pure metal and pure metal B? (ii) What is meant by \( \alpha \) and \( \gamma \) (iii) Label phases (a) - (f) (iv) Name and write two isothemal reactions (a) For \( 50 \% \mathrm{~A}-50 \% \) B alloy: (i) Sketch and label the cooling curve. (ii) What phase is exist at \( 500^{\circ} \mathrm{C} \). Give their composition and calculate their mass proportions (iii) With the aid of sketches describe solidification process when it is slowly cooled from \( 900^{\circ} \mathrm{C} \) to room temperature