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1. Explain how Jominy test results can be used to validate a particular steel grade for a specific application. What is it used for?

1. Explain how Jominy test results can be used to validate a particular steel grade for a specific application. What is it used for?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Can someone please answer these questions and all remaining sub questions please and thank you I really appreciate it a lot. I will upvote if all are answered please and thank you!!
1. Explain how Jominy test results can be used to validate a particular steel grade for a specific application. What is it used for? 2. Explain two reasons that powder metallurgy parts would have an advantage over machined parts. 3. Explain two main components of cemented carbide and the purpose of each component. 4. Why do we use coatings? 5. Name three independent weld parameters and describe how they affect the final weld quality. 6. Explain two advantages brazing would have over bolting components together and two advantages that a bolted joint would have over brazing. 7. Explain why flux is used for shielded metal arc welding (stick welding) and is not used for gas metal arc welding (MIG). 8. Discuss two reasons why the heat-affected-zone (HAZ) is significant in a weld? Explain why pre-heating and post- heating are used. 9. Explain how dendritic growth in a hypoeutectic alloy can cause microsegregation. Assume the alloy to metals “A" and “B" and are partially soluble. Include diagrams, as appropriate, and indicate the relative composition of the first material to solidify. 10. What happens when you lathe a square bar? 11. How to find hardness on a Jominy graph. 12. Explain the importance of wettability and capillary action when brazing. Name a parameter that effects each of these. 13. Explain the importance of each of the following features of a flask used in sand casting: a. Filters b. Wells made from c. Gates d. Risers 14. Explain why both aluminum and titanium have good corrosion resistance. 15. Explain what the T6 designation means in 6061-T6. Describe the heat treatment that would achieve this. 16. Give an example of a type of welding and why that method is uniquely suited for the example given. 17. High Density Polyethylene (HDPE) and Low Density Polyethylene (LDPE), polyethylene consist of polyethylene, but can have different properties and applications. Explain on the molecular level why their properties are different. Use diagrams in your explanation. 18. On an atomic level, explain why the properties of polystyrene and polyethylene differ. Compare the following properties: a) stiffness, b) opacity, and c) melting/softening point. 19. Explain why flux is used for shielded metal arc welding (stick welding) and is not used for gas metal arc welding (MIG). What happens if gas is not used for MIG? 20. Benefits of bolted joints? 21. What % martensite is considered ideal diameter? 22. Review Jominy curves.
Transcribed Image Text:1. Explain how Jominy test results can be used to validate a particular steel grade for a specific application. What is it used for? 2. Explain two reasons that powder metallurgy parts would have an advantage over machined parts. 3. Explain two main components of cemented carbide and the purpose of each component. 4. Why do we use coatings? 5. Name three independent weld parameters and describe how they affect the final weld quality. 6. Explain two advantages brazing would have over bolting components together and two advantages that a bolted joint would have over brazing. 7. Explain why flux is used for shielded metal arc welding (stick welding) and is not used for gas metal arc welding (MIG). 8. Discuss two reasons why the heat-affected-zone (HAZ) is significant in a weld? Explain why pre-heating and post- heating are used. 9. Explain how dendritic growth in a hypoeutectic alloy can cause microsegregation. Assume the alloy to metals “A" and “B" and are partially soluble. Include diagrams, as appropriate, and indicate the relative composition of the first material to solidify. 10. What happens when you lathe a square bar? 11. How to find hardness on a Jominy graph. 12. Explain the importance of wettability and capillary action when brazing. Name a parameter that effects each of these. 13. Explain the importance of each of the following features of a flask used in sand casting: a. Filters b. Wells made from c. Gates d. Risers 14. Explain why both aluminum and titanium have good corrosion resistance. 15. Explain what the T6 designation means in 6061-T6. Describe the heat treatment that would achieve this. 16. Give an example of a type of welding and why that method is uniquely suited for the example given. 17. High Density Polyethylene (HDPE) and Low Density Polyethylene (LDPE), polyethylene consist of polyethylene, but can have different properties and applications. Explain on the molecular level why their properties are different. Use diagrams in your explanation. 18. On an atomic level, explain why the properties of polystyrene and polyethylene differ. Compare the following properties: a) stiffness, b) opacity, and c) melting/softening point. 19. Explain why flux is used for shielded metal arc welding (stick welding) and is not used for gas metal arc welding (MIG). What happens if gas is not used for MIG? 20. Benefits of bolted joints? 21. What % martensite is considered ideal diameter? 22. Review Jominy curves.
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