Stress, MN/m 500 400 300 200 100 71 10 01.304 SS. ANNEALED (1% OFFSET 02. 304 SS. ROLLED (1% OFFSET) 3. BRASS (YS) 4. COPPER (YS) 05. "FERROVAC E STEEL (YS) A 6.0.05 C STEEL (YS.) 7.0.09 C STEEL (YS.) 8.0.13 C STEEL (Y.S.) 90.15 C STEEL (Y.S.) 10. 0.20 C STEEL (Y.S.) A 11. NICKEL (Y.S.) 12. MOLYBDENUM (Y.S.) 13. ALUMINUM (Y.S.) 10 15 20 25 30 35 40 D-1/2, mm-1/2 10. The yield stress vs. grain size is given above for various crystalline materials. Assuming a Hall-Petch relationship to find the following: a. The equation governing the yield stress (y) and grain size for 304 Rolled SS. b. Compare y for 304 Rolled SS and 0.2% Carbon Steel at a grain size of 5m. c. Compare Grain sizes for both materials at y = 500 MN/m d. Compare Pros & Cons of SS vs Carbon Steels (10 points)