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1. What is Age Hardening and how does it differ from Quench Hardening?

1. What is Age Hardening and how does it differ from Quench Hardening?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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1. What is Age Hardening and how does it differ from Quench Hardening? 2. Briefly describe the three steps involved in the Precipitation Hardening process. 3. What are Guinier-Preston Zones? 4. What's the difference between a Coherent and a Non-Coherent Precipitate? 5. Why would the formation of the 0' phase generally be undesirable, and the formation of 0-(CuAl2) be even less desirable, when precipitation hardening an alloy? 6. What metals does a 2024-T4 alloy contain? Briefly define/explain what the T4 represents? 7. What metals does a 6061-T6 alloy contain? Briefly define/explain what the T6 represents? 8. Consider the following three alloys from the Al-Cu system (see Al-Cu Phase Diagram): Pure Aluminum, 3wt%Cu-97wt%Al, and 8wt%Cu-92wt%Al. Which of these alloys is the best candidate for Age Hardening? Why? Which of these alloys is the worst candidate for Age Hardening? Why?
Transcribed Image Text:1. What is Age Hardening and how does it differ from Quench Hardening? 2. Briefly describe the three steps involved in the Precipitation Hardening process. 3. What are Guinier-Preston Zones? 4. What's the difference between a Coherent and a Non-Coherent Precipitate? 5. Why would the formation of the 0' phase generally be undesirable, and the formation of 0-(CuAl2) be even less desirable, when precipitation hardening an alloy? 6. What metals does a 2024-T4 alloy contain? Briefly define/explain what the T4 represents? 7. What metals does a 6061-T6 alloy contain? Briefly define/explain what the T6 represents? 8. Consider the following three alloys from the Al-Cu system (see Al-Cu Phase Diagram): Pure Aluminum, 3wt%Cu-97wt%Al, and 8wt%Cu-92wt%Al. Which of these alloys is the best candidate for Age Hardening? Why? Which of these alloys is the worst candidate for Age Hardening? Why?
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