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9. What is the purpose of tempering? Explain 10. What is the case hardening process? 11. What is martensite? 12. Is it possible to get

9. What is the purpose of tempering? Explain

10. What is the case hardening process?

11. What is martensite?

12. Is it possible to get the structure shown in Figure 6.5 by water quenching from austenite?

Figure 6.5: Micrograph of a specimen.

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