Temperature (°C)C2. Continued. The following questions refer to the phase diagram below:5Composition (at% C)10152025016001538°C1493°C14001394°CY+L12002.14y. Austenite1000912°C800aY0.766000.022a, Ferrite1147°Ca+ FezCL25004.302000y+ FegC727°C1500Cementite (Fe3C).1000400(Fe)23Composition (wt% C)4566.70For a 8 kg steel alloy containing 1.75 wt % C, answer the following:c) Just below the eutectoid temperature, how many kg of pearlite is formed (if any)?(d) Just below the eutectoid temperature, how many total kg of Fe3C are formed (ifany)?Temperature (°F)5

c) To calculate the mass of pearlite formed, we first need to determine the mass fraction of…

Answered: Temperature (°C) C2. Continued. The…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Consider Al- Cu system below. When Al-40%Cu is heated above 600°C and cooled slowly to a temperature of 545°C . Answer the following. Use the values of composition given in the phase diagram , no estimation .Each has two marks. 700 1200 600 L a + L 6 +L 548 1000 500 (CUAL) a + 6 800 400 600 300 5.65 10 20 30 32.7 40 50 52.5 (AI) Composition (wt % Cu) a. Percentage of the pro-eutectic phase present (% no decimal places) b. Composition of the pro- eutectic phase present (in %Cu one decimal place) c. What is the percentage of larger eutectic component present (% no decimal places) Temperature (°C) Temperature (°F)
22. The below figure is a portion of the Fe-Fe;C phase diagram, fill the represent meaning of these numbers in the diagram and answer the below question. T( C) 1600 3 2 1400 4 1 1200- 1148° C 9. 7 1000 10 800 727° 600 11 4005 6.7 (Fe) C, wt% C (1) (2) (3). (4). (5) (6) (7) (8) (9) (10) (11)_ to
Use the Cu-Ag Phase Diagram below to answer the following questions Composition (at% Ag) 20 40 60 80 100 2200 1200 A 2000 Liquidus 1000 Liquid 1800 Solidus C F a +L 1600 * 800 779 C (T) B+L E G 91.2 (Ceg 8.0 71.9 1400 (Cg). 1200 600 Solvus 1000 a +B 800 400 600 200 o 400 100 20 40 60 80 (Cu) Composition (wt% Ag) (Ag) Temperature ("C) Temperature ("F)
Temperature (°C) C2. The following questions refer to the phase diagram below: Composition (at% C) 1600 1538°C 1493°C 5 1400 1394°C Y+L 10 15 L 20 25 2500 1200 1147°C 2.14 y, Austenite 4.30 2000 1000 912°C 800 a Y 0.76 600 0.022 a, Ferrite 400 0 2 a+ Fe3C 3 4 y+ Fe3C 727°C 1500 Cementite (Fe3C). 1000 (Fe) Composition (wt% C) For a 8 kg steel alloy containing 1.75 wt % C, answer the following: What phases are present at 800°C and at 1150°C? (a) (b) i) What is the proeutectoid phase for this alloy? 6 6.70 ii) For this specific composition, what is the approximate temperature range that the proeutectoid phase would be formed in? (c) Just above the eutectoid temperature, i) What is the approximate composition of each phase? ii) How many kg of each phase is present? Temperature (°F) 4
The Pb-Sn phase diagram is given: What is the Primary phase for a Pb-75%Sn alloy and what is the amount of Eutectic mixture at 100°C for this alloy? Composition (at% Sn) 20 40 60 80 100 327°C H600 300 Liquid 500 232°C a + L 200 B + L 1400 183°C 18.3 61.9 97.8 B00 100 a + B 200 H100 20 40 60 80 100 (Pb) Composition (wt% Sn) (Sn) Temperature (°C) Temperature (°F)
Calculate the degrees of freedom at a composition of 71.9 wt% Ag and a temperature of 780 °C in the below silver-copper binary phase diagram. °C 1084.5 1000 961.93 900 a + L B+L 800 780 91.2 8.0 71.9 700 600 a+B 500 400 10 20 30 40 50 60 70 80 90 Ag Cu Weight Percent Silver
2.4 ) For the Pb-Sn phase diagram shown below: 20 40 60 80 100 327°C -600 300 Liquid -500 232°C 200 B + L 400 183°C 18.3 61.9 97.8 300 100 - a + B 200 100 20 40 60 80 100 (Pb) Composition (wt% Sn) (Sn) What is the solubility of Sn in Pb at 150°C? a. b. What is the solubility of Pb in Sn at 150 °C? Termperature (°C) Temperature ("F)
Refer to the following phase diagram (not to scale!) for nitrogen : 33.5 1.00 atm 0.127 63.1 63.2 77.4 126.0 T Kolvin At a pressure of 1 atm, the temperature 63.2 K is called the The normal boiling point for Ng is at The triple point pressure for Nz is ]of N2 - K atm The critical pressure for Ng is 33.5 atm. At temperatures above 126 K and pressures above 33.5 atm, Ny is a Nz is a[ Nz is a N2 is a |at 26.4 atm and 57.5 K. |at 1.00 atm and 75.1 K. at 0.127 atm and 83.0 K.
1. four processes. 2. Fill out the blanks by labeling the phase regions. 3. Identify the Indicate an in- termediate compound, if any. 3. Temperature (°C) 1600 1400 1200 1000 800 600 400 1538°C 0 (Fe) -1493°C 1394°C 912°C y, Austenite 1 2 0.16 5 0,022 a, Ferrite A N 2.14 Composition (at% C) 15 10 3 1147°C L4 3 4 Composition (wt% C) 4.30 727°C Sketch the microstructure at A, label phases, figure out compositions. 20 Cementite (Fe3C). 5 6 25 6.70
Figure 1 shows the phase diagram of platinum-silver (Pt-Ag) at equilibrium. Determine the phases present, composition, and amount of each phase at 1100 °C and 60 wt.% Ag. Alloy 1 Alloy 2 1800 1600 Liquid O 1400 L+a a 1186°C 1200 L+B 1000 800 a + B B 600 42.4 10 20 30 40 50 60 70 80 90 100% 100% Weight percent silver Ag Pt Figure 1 Temperature (°C)
i) Draw the phase diagram of a binary A (850 °C) and B (870 °C) system using below given information. • A and B are completely soluble in liquid phase. • B has no solid solubility in A. • Solid solubility of A in B at room temperature is 5 % and its maximum value is 20 %. • Eutectic point: 55 % B; 550 °C ii) for an alloy for which 55% B
The figure below shows Pb-Sn phase diagram. What is the composition of Pb and Sn at point 1? 1200 1000 Liquid a +L 779 C (Tg) B+L 6 800 8.0 71.9 G 91.2 600 400 200 20 40 60 80 100 (Pb) Composition (wt% Sni (Sn) Callister Jr., W.D., 2007 O a. 80 wt % Sn and 20 wt % Pb O b. 10 wt % Sn and 90 wt % Pb O c. 90 wt % Sn and 10 wt % Pb O d. 20 wt % Sn and 80 wt % Pb Temperature ("C)

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