E C1165 Pages 2

connection with fracture toughness.
௦) Explain the appearance of typical fatigue fracture surface with a neat sketch. (5) 12
12 Discuss about the structural changes that occur during the process of creep. (10)
13 a) Comment on the desired characteristics for the matrix and fiber phase in (6) preparation of
fibrous composite. Enumerate the functions of matrix phase.

b) Explain about hybrid composite.

(4)
14 Write short notes on a) Maraging steels b) Smart materials. ௦) intermetallics d)super (1
alloys

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