Material Science and Metallurgy — Summer 2021

Classify various types of engineering materials.

What is a solid solution? Explain with a neat sketch various types of solid solutions.

Draw neatly Iron-Iron carbide equilibrium diagram. Name all important phases, temperatures and reactions.

Define following properties of metals: (a) Hardness, (b) Toughness (c) Fatigue

Explain the importance of microscopic and macroscopic examination of metallic materials.

Define atomic packing factor (APF). Calculate APF for Face centered cubic (FCC) structure with a neat sketch.

Explain Edge and screw dislocation with the help of a neat figure.

Briefly explain engineering requirements of materials.

List out the various methods used to combat corrosion.

Define allotropy. Explain it with reference to iron.

What are the criteria for the selection of engineering materials?

Classify different types of corrosion.

Explain with a neat sketch Time-Temperature-Transformation (TTT) diagram for a eutectoid composition steel.

List out various applications of powder metallurgy.

Discuss sintering process in powder metallurgy.

Name different types case hardening methods. Explain pack carburizing process with the help of a neat diagram.

Explain briefly Full Annealing process.

Explain Austempering process.

Explain with a neat sketch three common methods of powder production and discuss their influence on the properties of the final product.

State and explain Gibb’s Phase Rule.

Explain the ‘Lever Rule’ with the help of a binary phase diagram.

Describe Ultrasonic Testing Method and also mention its advantages and limitations.

Explain the process of solidification in metals.

What is non-equilibrium cooling? Explain.

Explain in detail Radiography testing method along with its advantages, disadvantages.