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Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
PDDC- SEMESTER-III EXAMINATION SUMMER 2017
Subject Code: X31902 Date:29/05/2017
Subject Name: Material Science Metallurgy
Time: 02:30 PM to 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1

List out a various heat Treatment process. Explain Differentiate between Annealing and Normalizing.
07

Explain the following terms Ferrite Austenite Pearlite
Explain Objectives of Heat treatment process of Steel.
07
Q.2

What is solid solution? Explain types of solid solution. Also give
Hume Rothery's Rules.
07

Explain in brief about FCC, BCC, and HCP structures for metallic elements.
07
OR
Q.2

What are the applications of Powder Metallurgy?
07
Q.3

Draw and Explain Iron Carbon Equilibrium Diagram.
07

What is phase diagram? Explain Lever rule.
07
OR
Q.3

Discuss the Cathodic protection of corrosion prevention for underground Pipelines.
07

What are the factor affecting the rate of Corrosion? Explain the hydrogen evaluation and oxygen absorption mechanism of corrosion.
07
Q.4

What is Malleable cast iron? Enlist properties and application of it.
07

Discuss mechanisms of quenching of steel. State the advantages and drawbacks of water oil as quenching media.
07
OR
Q.4

Define Critical Cooling Rate of steel and show the same on a TTT diagram with complete labeling.
07

What are micro and macro examination? Explain steps micro examination process.
07
Q.5

What do you mean by Non-destructive test? And describe the various NDT
Methods, their features, and applications.
07

Explain working principle of LPT and its method and applications.
07
OR
Q.5

Explain the Following terms Fatigue Creep Toughness
Hardness Macrostructure Stiffness
07

Explain in detail the criteria for selection of materials for Engineering
Applications.
07