MMS-UNIT-1 Questions
METALLURGY AND MATERIAL SCIENCE Unit-I 1. Illustrate the mechanism of crystallization process in pure metals. 2. How are solid solutions classified? Give example for each. 3. What conditions favor the formation of substitutional solid solutions? 4. How grain size influences the properties of materials Explain 5. What is an alloy? Describe the necessity of alloying. 6. Differentiate between substitutional and interstitial solid solutions. 7. Define atomic packing factor and calculate packing factor for F.C.C structure. 8. Yield strength of poly crystalline material increases from 120 MN/m 2 to 220 MN/m 2 on decreasing the grain diameter from 0.04 to 0.01 mm .Find the yield strength for a grain size of 0.0159mm. 9.On what factors grain size depends. Explain? 10. Differentiate between simple cubic and F.C.C structures 11. Define atomic packing factor and calculate packing factor for H.C.P structure. 12. Differentiate between F.C.C and H.C.P struc