Material Science and Metallurgy — Summer 2024

Give a brief classification of materials.

Explain the role of material science and metallurgy in advancement of civilization.

Explain the criteria for selection of materials for engineering applications.

Explain the concept of allotropy with a relevant example.

Define crystal structure. List and draw seven crystal structures.

Calculate atomic packing factor for SC and BCC materials.

Explain the mechanism of crystallization. Derive the formula to calculate critical radius of nuclei for homogeneous nucleation.

Define system, surrounding, phase, component and degree of freedom. Write Gibb’s phase rule for unary and binary system.

Write a short note on non equilibrium cooling.

Draw frenkel and schottky defect.

List and explain the steps in preparation of specimens for microscopic examination.

List advantages and limitations of spark test.

Draw edge and screw dislocation.

Draw the microstructure of a solidified pure metal ingot.

Write invariant reactions of eutectic and peritectoid reaction.

Draw a well labeled Iron – Iron Carbide phase diagram.

Draw a sample cooling curve for pure metal.

Write invariant reactions of monotectic and eutectoid reaction.

Define solid solution. List the types of solid solutions. List Hume Rothery rules for solid solution formation.

List methods for production of metal powder.

Draw a well labeled Time – Temperature – Transformation Diagram.

List the types of annealing process. Explain full annealing in detail.

Write the applications of powder metallurgy.

List the types of corrosion. Explain any one in brief.

List non destructive testing methods. Explain dye penetration testing in detail.