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    Engineering Material Assignment

    Uploaded by

    Sharjeel Faisal
    1. The document provides an assignment for an Engineering Materials class covering various topics in materials engineering including crystal structures, heat treatments, phase diagrams, corrosion, polymers, ceramics, composites, and refractories. 2. It includes 24 questions on topics such as the classification of engineering materials, crystal structures, defects, strengthening mechanisms, phase diagrams, heat treatments, mechanical properties, corrosion mechanisms, polymer structures and properties, ceramic applications and classifications, composites, glass ceramics, and refractories. 3. Students are asked to define terms, describe concepts, calculate properties, compare processes, explain diagrams, and state applications. The broad range of materials science topics assessed indicates it is a foundational undergraduate assignment

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    Engineering Material Assignment

    Uploaded by

    Sharjeel Faisal
    1K views3 pages
    1. The document provides an assignment for an Engineering Materials class covering various topics in materials engineering including crystal structures, heat treatments, phase diagrams, corrosion, polymers, ceramics, composites, and refractories. 2. It includes 24 questions on topics such as the classification of engineering materials, crystal structures, defects, strengthening mechanisms, phase diagrams, heat treatments, mechanical properties, corrosion mechanisms, polymer structures and properties, ceramic applications and classifications, composites, glass ceramics, and refractories. 3. Students are asked to define terms, describe concepts, calculate properties, compare processes, explain diagrams, and state applications. The broad range of materials science topics assessed indicates it is a foundational undergraduate assignment

    Original Description:

    Engineering Material Assignment Given to a student To Solve (12ME Batch)

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    1. The document provides an assignment for an Engineering Materials class covering various topics in materials engineering including crystal structures, heat treatments, phase diagrams, corrosion, polymers, ceramics, composites, and refractories. 2. It includes 24 questions on topics such as the classification of engineering materials, crystal structures, defects, strengthening mechanisms, phase diagrams, heat treatments, mechanical properties, corrosion mechanisms, polymer structures and properties, ceramic applications and classifications, composites, glass ceramics, and refractories. 3. Students are asked to define terms, describe concepts, calculate properties, compare processes, explain diagrams, and state applications. The broad range of materials science topics assessed indicates it is a foundational undergraduate assignment

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    1K views3 pages

    Engineering Material Assignment

    Uploaded by

    Sharjeel Faisal
    1. The document provides an assignment for an Engineering Materials class covering various topics in materials engineering including crystal structures, heat treatments, phase diagrams, corrosion, polymers, ceramics, composites, and refractories. 2. It includes 24 questions on topics such as the classification of engineering materials, crystal structures, defects, strengthening mechanisms, phase diagrams, heat treatments, mechanical properties, corrosion mechanisms, polymer structures and properties, ceramic applications and classifications, composites, glass ceramics, and refractories. 3. Students are asked to define terms, describe concepts, calculate properties, compare processes, explain diagrams, and state applications. The broad range of materials science topics assessed indicates it is a foundational undergraduate assignment

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
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    The document discusses various topics related to engineering materials including their properties, classification, processing and applications.

    Heat treatment is a process of altering the properties of a material by controlling heating and cooling rates. Properties like strength, hardness, ductility can be altered through heat treatment.

    Strain hardening is the strengthening of a metal by plastic deformation. It increases the strength but decreases ductility of metals.

    Engineering Materials Class: 12ME (Section A & B) Assignment-1 Last Date of Submission: 1. What is Materials Engineering?

    Why Study Materials Engineering? Note any two types of advanced materials along with their distinctive features. 2. Give the general classification of Engineering Materials. 3. What is allotropy? Why is carbon, in the form of diamond, one of the hardest materials known, but as graphite is very soft and can be used as a solid lubricant? 4. Differentiate between (i) a unit cell and a single crystal, and (ii) crystalline and amorphous materials. State any two applications where single crystals are used. 5. What is a slip system, and what is its significance? Do all metals have the same slip system? Why or why not? 6. Describe (i) point defect and its types, (ii) Line defect (dislocation) and its types, (iii) surface defect and its types. 7. What is twinning? How does it differ from slip? 8. Determine the Miller indices of planes A, B and C in Figure below:

    9. Describe three basic crystal structures in metals. Calculate the volume of BCC, FCC and HCP unit cells in terms of the atomic radius R. 10. Describe your understanding of why different crystal structures exhibit different strengths and ductilities. 11. What effects does recrystallization have on the properties of metals? 12. Show for the body-centered cubic crystal structure that the unit cell edge length a and the atomic radius R are related through a 4 R 3 . 13. Show that the atomic packing factor for BCC, FCC and HCP is 0.68, 0.74 and 0.74 respectively. 14. Show that for HCP the c/a ratio is 1.633. 15. What are the major categories of ferrous alloys? 16. List the basic raw materials used in making iron, and explain their functions. Also describe several chemical reactions that take place before the iron is finally produced from Blast furnace. 17. List the types of furnaces commonly used in steelmaking, and describe their characteristics. 18. What are the percentage carbon contents of low carbon, medium-carbon, and high-carbon steels? And how do stainless steels become stainless? 19. Explain the copper extraction method. What are the major uses of copper? What are the alloying elements in brass and bronze, respectively? 20. What three pieces of information can be obtained for each point in an equilibrium phase diagram? What is a tie-line? 21. What are the four single phases in the ironiron carbide diagram? Provide both the phase diagram notation and the assigned name. 22. Describe the conditions of complete solubility, partial solubility, and insolubility.

    23. What is the mechanism of corrosion in metals? Describe why, and under what conditions the corrosion occurs. 24. Describe the various methods of preventing corrosion.

    Engineering Materials Class: 12ME (Section A & B) Assignment-2 1. 2. 3. 4. What is heat treatment? What types of properties can be altered through heat treatment? What is the major process difference between full annealing and normalizing? What is strain hardening, and what effects does it have on the properties of metals? Describe the events that occur when a specimen undergoes a tension test. Sketch a plausible stress-strain curve, and identify all significant regions and points between them. Assume that loading continues up to fracture. 5. What is Hookes law? Youngs modulus? Poissons ratio? 6. State the purposes of and describe procedures for the following heat treatments: process annealing, stress relief annealing, normalizing, full annealing, and spheroidizing. 7. Describe the intended final microstructure for each of the following heat treatment procedures for steels: full annealing, normalizing, quenching, and tempering. 8. Cite advantages and disadvantages of hot working and cold working. 9. What is rolling process in metals? Describe various types of rolling operations and name several products that can be made by each of the operations. 10. Describe polymers and various classifications of polymers. 11. What is the primary type of atomic bonding within polymers? Describe structure of different polymers. 12. Differentiate between thermoplastics & thermo-sets. Define their properties and applications. Explain why thermoplastics are easier to recycle than thermo-sets. 13. What is the primary type of atomic bonding within polymers? Describe structure of different polymers. 14. What are Elastomers, define their properties and applications. 15. Discuss various techniques of processing polymers. Also describe thermo-forming, cold forming and solid forming in polymers. 16. What are ceramic materials? Explain how ceramic materials can be classified in different ways. 17. What are the primary types of atomic bonds in ceramics? Describe general properties of ceramics. 18. State applications of the following ceramics: (a) alumina, (b) silica, (c) barium titanate, (d) zirconia, (e) boron carbide, and (f) diamond. 19. What are composites? Give classification of composites. 20. Explain the characteristics of fiber phase that affect the properties of fiber-reinforced composites. In a fiber-reinforced composite, what is the role of the matrix? 21. What is a nanocomposite? Give two examples for which composites are used for non-structural applications. 22. What is a cermet? What are the advantages of cermets? Describe some of its applications. 23. How is a glass-ceramic different from a glass and a ceramic? What are the advantages of using glass ceramics as compared to either glasses or ceramics? 24. What is a refractory metal? Describe ceramic refractories and their properties. Discuss basic refractories, special refractories, Fireclay Refractories and Silica Refractories

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