Question

Question 1: Using the copper-silver phase diagram in Figure 1 a. What is the eutectic composition Starting from a molten miture with 80 w1% silver at 110rcyou cool the mature slowly. b. At what temperature will first solids occur ? C What is the composition of the first sollids? d. What is the percent solids at 80007 e. What is the composition at 600C ? 1084,5 (Cul 1.9 500 400 Cu 10 20 30 4 50 60 0 80 90 Ag Siver, wt% Figure 1: Copper-silver phase dagram Question 2: What is the difference between a eutectic and a eutectoid? Question 3: in your first job after graduating, you are working in a rolling mill that produces reinforcing bar for concrete structures (rebar). A major customer orders 2000 m of 12 mm diameter rebar which they need on-site within 2 days. There are 1700m of 12mm diameter bar in stock. Your boss tells you to set up the rolling mill for another rolling pass to generate the required 2000m of material, a. What would the new diameter be? b. What is the longitudinal (along the length of the barj engineering strain c. What should you do? Note: state ALL assumptions

Answer 1