Define crystal. List the crystal system.
[3 marks]Draw miller indices planes and directions: (1 1 1), (1 1 0), (1 2 3), [1 1 0], [1 2 3]
[4 marks]Derive APF for FCC and BCC.
[7 marks]What is Degree of freedom?
[3 marks]What is heterogeneous nucleation?
[4 marks]Derive the formula for critical radius for the nucleation.
[7 marks]Explain the Hume-Rothery rule for substitution solid solution.
Explain allotropy of iron.
[3 marks]Explain the Gibb’s phase rule with suitable example for invariant system.
[4 marks]Briefly explain mechanical mixture, intermediate phases and solid solutions.
[7 marks]With graph derive the formula for degree of supercooling.
[3 marks]Briefly explain with the help of graph rate of growth and rate of nucleation.
[4 marks]Draw and explain the cooling curve for pure metal, binary solid solution and binary eutectic system.
[7 marks]Draw phase diagram for isomorphous system with example.
[3 marks]Classify phase diagram based on solid solubility of components in solid and liquid state.
[4 marks]With the help of cooling curve explain eutectic phase diagram construction with example.
[7 marks]What do you mean by coring?
[3 marks]Give the reaction for eutectic, eutectoid, peritectic, peritectoid and monotectic.
[4 marks]Draw, sketch and label Iron-Iron carbide equilibrium diagram. Explain various phases and transformation reactions.
[7 marks]Why solid state is most stable at room temperature?
[3 marks]What are different methods used for grain size measurement. Explain any one of it.
[4 marks]What is Metallography? Explain briefly various steps of metallography techniques.
[7 marks]Give different coding system of steel with suitable example.
[3 marks]Explain the lever rule for 0.8% Cin Fe-Fe Cdiagram.3
[4 marks]Classify the cast iron. What are the different forms of carbon in it? Explain any one with microstructure, phase present and application.
[7 marks]