Metallurgy is the art and science of extracting metals from their ores and adapting these metals to satisfy human wants and Material Science is investigating relationships that exist between the structure and properties of materials. Materials are of utmost importance for engineers, as the usage of the appropriate materials is crucial when designing systems. As a result, materials science is an increasingly important part of an engineer's education. The knowledge of materials allows the design engineer not only to make the best material selection as a function of its application in a given product, but also to overcome its limitations where the transformation technologies become variables of the creation process. Engineering Materials: These are the substances which are used in structures, machines, devices or products. The Knowledge of engineering materials is important for mechanical engineers to built and design different kinds of structures, machines, auto
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
Comments
Post a Comment