Question 1:
Illustrate out the term ‘Polymorphism’? Provide some of its instances.
Question 2:
Illustrate out the effects of the crystal imperfections in materials.
Question 3:
Discuss five significant mechanical tests which provide valuable information regarding metals and alloys. What are the relative benefits and drawbacks of each?
Question 4:
Sketch a typical ‘creep-test’ curve, showing different phases of the elongation for a long time high temperature creep test. Discuss how the information is useful to the designers.
Question 5:
In brief illustrate out the common types of the corrosion which are encountered on metal in different condition and indicate the nature of mechanism involved in each case.
Question 6:
In what ways can the mechanical properties of the aluminium alloys be enhanced? What is the effect of adding copper to the aluminium?