Material Science And Metallurgy

(b) Explain briefly Buashinger effect and Luder Bands with diagram. 

(b) Explain ductile and brittle fracture with diagram.

(a) Calculate c/a ratio for HCP structure. Also name two HCP metal.

(a) What is the distinction between hypoeutectoid and hypereutectoid steel? In a hypoeutectoid steel, both eutectoid and proeutectoid ferrite exist. Explain the difference between them.

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(e) Draw time temperature transformation diagram and explain the effect of alloying elements on diagram. 

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(d) Write the effect on Silicon, Manganese, Sulphur, Phosphorus and Hydrogen on steel. 

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(c) Describe the factors affecting diffusion with example

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 (b) Write the mechanical and physical properties of glass.

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(a) Write the eutectic, eutectoid and peritectic reaction formed in Iron-iron carbide diagram. Also name their mixture.

(b) Classify the composites. Discuss any one in detail.

(a) Discuss corrosion prevention method. Explain in detail cathodic protection. What is sacrificial anode?

(b) Define corrosion. Write note on galvanic corrosion and pitting.

(a) Draw the stress-strain curve for an aligned fiber reinforced composites. Also discuss the shape and orientation of fiber in a composites.

(b) Write note on annealing and normalizing. Also discuss the hardness and strength of annealed and normalized components.

(a) Define hardening and hardenability. Explain Jominy End Quench Tes twith its significance.

(b) Write the composition and uses of medium carbon steel and spring steel.

(a) What is surface heat treatment? Explain three types of carburizing method.

(b) What is the significance of upper critical temperature line on hypoeutectoid and hypereutectoid steels? Explain with diagram.

(a) Write the factors for the selection of materials at low temperatures.

(b) Explain the plastic deformation by slip with diagram. 

(a) Explain strain hardening phenomenon. Also describe strengthening mechanism