Temperature (°C)C2.The following questions refer to the phase diagram below:Composition (at% C)16001538°C1493°C514001394°CY+L1015L2025250012001147°C2.14y, Austenite4.3020001000912°C800aY0.766000.022a, Ferrite40002a+ Fe3C34y+ Fe3C727°C1500Cementite (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?66.70ii) For this specific composition, what is the approximate temperature rangethat 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

Step 1: Answer (a) : Phases at 800°C and 1150°C are present : * At 800°C: The microstructure of a…

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

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)
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)
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
b) Figure 1 shows a Cu-Ag phase diagram. Calculate the phase analysis for 50% Ag-50% Cu at 800 °C. Temperature (°C) 1200 1000 800 600 400 200 ( C (Cu) B 8.0 (C₂g) -Solidus Solvus 20 20 a + L Composition (at% Ag) 40 -Liquidus 779°C (TE) a + B 40 Liquid 60 Composition (wt% Ag) 60 71.9 (CE) 80 80 B+L 91.2 (CBg) G to 100 2200 2000 1800 F 1600 1400 1200 1000 800 600 400 100 Temperature (°F)
Temperature (°C) C2. Continued. The following questions refer to the phase diagram below: 5 Composition (at% C) 10 15 20 25 0 1600 1538°C 1493°C 1400 1394°C Y+L 1200 2.14 y. Austenite 1000 912°C 800 a Y 0.76 600 0.022 a, Ferrite 1147°C a+ FezC L 2500 4.30 2000 y+ FegC 727°C 1500 Cementite (Fe3C). 1000 400 (Fe) 2 3 Composition (wt% C) 4 5 6 6.70 For 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 (if any)? Temperature (°F) 5
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)
Consider Cu - Ag Phase diagram below: 1200 A -Liquidus 1000 Liquid -Solidus 779°C (TE) 800 Temperature (°C) 600 400 a C 200 0 B 8.0 (Cag) Solvus a +L a + ß E 71.9 (CE) B+L 91.2 (CBE) B H 1 1 1 1 1 { ( L 20 40 60 80 100 (Cu) Composition (wt% Ag) (Ag) Consider 71.9% Ag-28.1% Cu, which is cooled below 779°C. What is the composition of the phases present just below 779°C and give the amount of beta phase present
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
For the given Ti-Cu phase diagram, specify all temperature-composition points at which eutectics, eutectoids, peritectic, and congruent phase transformations occur. Also, for each, write the reaction upon cooling. Temperature (°C) 1700 1500 1300 1100 900 700 500 0 (Ti) 1 B a 20 Ti₂Cu 40 Composition (wt% Cu) L TiCu TigCu4 60
5. For a 33 wt% Sn-67 wt% Pb alloy at 150°C: a. What phase(s) is (are) present? b. (b) What is (are) the composition(s) of the phase(s)? C. Calculate the relative amount of each phase present in terms of mass fraction. Temperature (°C) 300 200 100 327°C (Pb) 20 a + L 18.3 40 20 Composition (at % Sn) 60 183°C 40 a + ß Liquid 61.9 60 Composition (wt% Sn) Lead - Tin Phase Diagram 80 80 B+L 232°C 97.8 100 B | to 600 500 400 300 200 100 100 (Sn) Temperature (°F)
Temperature (°C) Based on the Ti-Al phase diagram (important for standard commercial alloy Ti-6Al- 4V) shown below, identify a) the type of reaction (e.g., peritectic) of the marked points (1) and b) list the phases before and after the reactions. 10 20 Weight percent aluminum 30 40 50 60 70 80 90 100 1800 1700 1670°C (1) 1600 L 1500 1400 a (ẞTi) 1300 1285 y-TiAl 1200 1100 1125 لسسسلسسسل 1000 Ti, Al (L10) 900 ር? 882°C 800 (aTi) (D019) 700 600 500 0 10 20 Ti Superlattice structures -TiAl, 665°C 660.452°C TiAl₂ aTiAl3 (Al). 20 30 40 50 60 70 80 90 100 Atomic percent aluminum PM Al
temperatrue (°C) 400 300 200 183 100 0 0 100% Pb 19 20 61.9 40 60 Weight percent tin Fox Ligund 80 97.5 100% Sn Figure 1 Figure 1 shows a Pb-Sn phase diagram. Analyze the phase analysis for a 60 wt% Pb - 40 wt% Sn at 200 °C.

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