Explain the following material properties: Ductility, Creep, Fatigue, Toughness, Hardenability
[5 marks]Discuss selection criteria for materials used in engineering applications.
[5 marks]Write a Hume-Rothery rules for Substitutional Solid solution formation.
[5 marks]Explain homogeneous and heterogeneous nucleation process with neat sketch.
[5 marks]Explain a atomic packing factor and Calculate the APF for BCC and FCC structures.
[5 marks]Draw Iron – carbon diagram and Explain solid state transformation from austenitic temperature to room temperature for 0.4% carbon steel.
[5 marks]What are the effect of alloying various elements, viz Cr, Hi, Co, V,W in steels?
[5 marks]Write short note on Heat Resisting alloy Steels.
[5 marks]Write short note on Gray Cast Iron.
[5 marks]Explain the NDT method widely used for inspection of castings.
[5 marks]Explain in detail Radiography testing method along with its advantages, disadvantages.
[5 marks]Describe Ultrasonic Testing Method and also mention its advantages and Limitations.
[5 marks]Explain in detail Magnetic particle testing method along with its advantages, disadvantages.
[5 marks]Explain with a neat sketch Time-Temperature-Transformation (TTT) diagram for a eutectoid composition steel.
[5 marks]Justify the need of Heat treatment processes for metals. Explain with neat sketch TTT diagram for heat treatment of steel.
[5 marks]Define hardenability and list three factors affecting it
[5 marks]Discuss mechanisms of quenching of steel. State the advantages and drawbacks of water & oil as quenching media.
[5 marks]