Question: Sir please solve this 11:57 AM * ull all 17.1 42 K/s Quiz 3_EM_S20 - Read-only Read Only - You can't save changes to t...

11:57 AM * ull all 17.1 42 K/s Quiz 3_EM_S20 - Read-only Sir please solve this

11:57 AM * ull all 17.1 42 K/s Quiz 3_EM_S20 - Read-only Read Only - You can't save changes to t... FACULTY OF ENGINEERING SCIENCE AND TECHNOLOGY HIET, Hamdard University Reg. # Section: Name: Department: Mechanical Engineering Program: B.E. (Mechanical Engineering) Quiz-3 ME-122 Engineering Materials/EG-222 Engineering Materials & Properties Date: July 01, 2020 Allowed Time: 20 minutes Total Marks = 2 Semester: 2nd/Spring-20 Due Date: July 06, 2020 Marks Obtained = (CLO_3): (Cognitive Level C4 (Analyzing)) (PLO_4, i.e., Investigation) Question#1 A copper-nickel alloy of composition 75 wt% Ni-25 wt% Cu is slowly heated from a temperature of 1300C. (a) At what temperature does the first liquid phase form? (b) What is the composition of this liquid phase? (c) At what temperature does complete melting of the alloy occur? Composi tion (at% NI) 20 40 60 80 100 1600 2800 1500 Liquid 1453C 2600 1400 Liquidus line Solidus line 2400 1300 1200 2200 1100 2000 1085C 1000 20 40 60 80 100 (Cu) Composition (wt% NI) (Ni) (NI) (CLO_3): (Cognitive Level C4 (Analyzing)) (PLO_4, i.e., Investigation) Question#2 Consider 1.0 kg of austenite containing 1.15 wt% C, cooled to below 725C. (a) What is the hypoeutectoid phase? (b) How many kilograms each of total ferrite and cementite form? (c) How many kilograms each of pearlite and the hypoeutectoid phase form? Page 1 of 1 Tormperature ("C) ...

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