This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: 6. Describe the difference between age hardening in nonferrous metals and martensite tempering in steels. 7. Identify the important reasons why metals are annealed. 8. Define precipitation hardening ? 9. Explain the difference between hardness and hardenability. 10. Describe the phases resulting from cooling along A, B, C, D lines in the CCT diagram of steel. Calculation: 1. For an alloy containing 50% Cu and 50% Ni, calculate the amounts of solid S and liquid L presents at 1300C. Show that the total nickel content in the solid and liquid phases adds up to 50%. (5) 2. Calculate the relative proportions of phases in Cu-Ag alloy of eutectic composition, just below the eutectic temperature. During the cooling of an Alloy (Cu 80% Ag 20%) from 1100C to 600C, describe each phase transitions, the temperature for starting each phase transformation. (6)...
View Full Document
This note was uploaded on 02/22/2012 for the course IE 370 taught by Professor Chunghorng,r during the Spring '08 term at Purdue University-West Lafayette.
- Spring '08