Material Science and Metallurgy — Winter 2023

Explain the following material properties : (1) Ductility (2) Creep (3) Fatigue

Give selection criteria of material for engineering applications.

Explain a differentiate between edge dislocation and screw dislocation with neat sketch.

Explain a atomic packing factor. Explain and differentiate Edge dislocation and Screw dislocation with neat sketch.

Draw : (1 1 2) , (-1 1 0), [1 0 0] and [-2 0 1]

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Derive an expression to calculate critical radius for homogeneous nucleation of a solid from liquid.

Describe applications of phase diagram.

Differentiate between macro and micro examinations.

Draw Iron Carbon Diagram with all necessary notations. Explain eutectic, eutectoid reaction.

Outline major mechanical property requirements of bicycle wheel axle.

The steel contains 0.4 % Ccontain steel is softer than the steel contain 1.2 % C. True or false? Justify using Lever Rule.

Using Gibb’s phase rule, explain unary phase diagram with the help of sketch.

Define Heat Treatment and classify heat treatment processes.

Differentiate between annealing and normalizing.

Justify the need of Heat treatment processes for metals. Explain with neat sketch TTT diagram for heat treatment of steel.

State the composition, properties and applications of Hindalium and Invar

Explain Point defect & Line defect

List out the various characteristics of fine metal powder. Explain any four.

What is the main objectives of NDT method?

Explain differentiate between LPT and MPT.

Explain the principle of Radiography testing. With its use in metal testing.

Draw Jominy hardenability set-up including labeling & important dimensions.

Explain difference between dry type and Wet type corrosion.

Explain the NDT method widely used for inspection of castings.