MU Mechanical Engineering (Semester 4)
Material Technology
December 2016
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


Write a short note any four Q1.(a,b,c,d,e)
1(a) Rotating beam fatigue testing machine
5 M
1(b) Effect of alloying elements on phase transformation
5 M
1(c) Strain hardening
5 M
1(d) Subzero treatment
5 M
1(e) Nano Materials
5 M

2(a) Derive an expression for critical resolved shear stress. Explain "slip Mechanism" and " twinning mechanism" of plastic deformation
8 M
2(b) Defien creep. Explain stages of creep.
6 M
2(c) Write short note on Transformed Lediburite.
6 M

3(a) Derive an expression for Griffith theory of brittle fracture. Also state Orowan's modifiaction.
8 M
3(b) Draw Fe-Fe3C Diagram and explain cooling of 1.0% C alloy in Fe-Fe3C diagram.
12 M

4(a) Draw and explain construction of Time Temperature Transformation (TTT) diagrams of 0.8% carbon alloy.
10 M
4(b) What is case hardening? Discuss the process of Nitriding and Cyaniding in detail.
10 M

5(a) What is recrystallization annealing? Discuss the various stages of recrystallization annealing. What are factor affecting it?
8 M
5(b) What are stainless steels? Classify stainless steels. Discuss and mention their applications.
6 M
5(c) What are Nano Composites? Give applications of Nano Composites.
6 M

Write a short note any four Q6.(a,b,c,d,e)
6(a) Chromising
5 M
6(b) Bergervector
5 M
6(c) Retained austenite
5 M
6(d) Solid solution
5 M
6(e) Frank reed source
5 M



More question papers from Material Technology
SPONSORED ADVERTISEMENTS