METALLURGY AND MATERIALS ENGINEERING [MME] MOST IMPORTANT QUESTIONS

METALLURGY AND MATERIALS ENGINEERING [MME] IMPORTANT QUESTIONS PART 1

PART A

1. Why martensite is not shown fe-C diagram?

2. With a neat sketch explain TTT diagram for eutactoid steel?

3. Expalin invariant reaction with diagrams?

4. What are the heat treatment processes? What are the classification?

PART B

5. Draw SN - Pb phase diagram to scale and label all important points and indicate phase present in different regions?
                                                                                              
6. State lever rule and explain with an example?

7. What is hardenability? Describe Jominy End quench test?
                                                                              
8. Write a short notes on Austempering and Carburising?

METALLURGY AND MATERIALS ENGINEERING [MME] PART 2

PART A

1. Explain polymorphism and allotrophy with examples of each.

2.Define the following

(i)Co-ordination Number   
  
(ii) Atomic Packing Factor

3.What is the significance of frank and read source?

4.What is meant by diffusion?What are the factors affecting diffusion?

PART B

5.Draw planes and directions for the following.

(i)101

(ii)211 

(iii)102

6.Find out co-ordination number and APF for HCP structure with detailed step?

7.Explain the process of homogeneous and heterogeneous nuclei formation?

8. What is meant by imperfections and explain the types eith neat sketch?