6. Answer the following questions regarding the Lever Rule. [a. Describe the purpose of the Lever Rule and write the equation.b. Using the lever rule for 52 wt% Zn-48 wt% Cu, cite the phases present and mass fractions at thefollowing temperatures: 1000°C, 800°C, 500°C, and 300°C. Refer to the Cu-Zn diagram fromproblem 3 or use the book diagram on p. 326.7. Returning to the Zn-Cu phase diagram, using the composition 52 wt% Zn-48 wt% Cu, draw schematicsof the microstructures if you were to undergo a slow cooling process. Draw representations for 950°C,860°C, 800°C, and 600°C. Make sure to properly label each phase and determine their approximatecompositions. 70-30 brass60-40 brass1083 C1000.902°CLiquidww.ww.www.834°C800700°CఇSolid a !or (Ču)8 698C6003.424PC400419°CSolidor(Zn)200204060100Cuwt % ZnZnTemperature, T (°C)80

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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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If 20000 g of steam is condensed in 2 x 10^6 cm³ at a pressure of 4 MPa a. What is the temperature (C)? b. In what state steam? c. Draw it in the form of a phase diagram that you know
(a) Sketch a Pressure-Temperature phase diagram for a pure substance X where liquid X is less dense than solid X. Insert an isobar at 1 atm and an isotherm at 300 K. Clearly label all physical states, triple point, critical temperature and any normal transition temperatures.
In a binary Fe-Fe3C system, what is the transformation that occurs when cooling an austenistic mixture of 2% C by weight from 1100°C to below the eutectoid temperature? What is the microstructure, and how is it formed? What are the concentrations of the total and partial phases? Data: eutectoid temperature: 723 ºC, eutectoid concentration: 0.76% C, limit concentration of ferrite: 0.022%, limit concentration of cementite: 6.7%.
5
PLEASE HELP ANSWER THIS THERMODYNAMICS PRACTICE QUESTION THANK YOU
According to the following graph, two samples of 1080 steel are cooled from the eutectoid temperature, one at a cooling rate of 250°C/s and the other at a cooling rate of 7.27x10-8 °C/s. Specify the phases obtained and explain their formation from thermodynamic and kinetic perspectives. Also, briefly describe their formation. Draw the microstructure of the phases obtained. Sıcaklık (C) 800 700 600 500 400 300 200 100 0 10 1 T M(başlama) M(% 50) M(% 90) 10 M+O -Otektoid Sıcaklık 10² Zaman (s) % 50 10³ 104 105
Q2/ For a 97.5 wt% Fe-2.5 wt% C at a temperature 700 oC, determine the following: a) The Number and types of The Phases Present. b) The Amount of Phases Present in Grams That forms per 100 G. c) Draw The Microstructure Of Phases Present At This Point And What is The React called? 1600 1538°C 1493°C L 1400 8 1394°C Y+L 1200 y, Austenite 1000 Temperature (°C) 912°C 800a Y 600 400 0 (Fe) 0.76 0.022 a, Ferrite 1 2.14 1147°C 4.30 y + Fe C رقم الصفحة 1/ 1 727°C a + Fe3C 2 4 3 Composition (wt% C) Iron- Carbon Phase Diagrams Cementite (Fe3C) 5 6 6.7
Q/ The phase present for a 30 wt% sn, 7O wt% pb of alloy at 200°c is (a+ L) Determine: Composition of (a) and (L) for both (sn) and (pb). * 327°C 300E Liquid 232°C a +L 200E B + L 183°C 18.3 61.9 97.8 100 a +B 20 40 60 80 100 (Pb) Composition (wt% Sn) (Sn) Ca =18 Wt% pb, CL=58 Wt% pb and Ca =82 Wt% Sn, CL=42 Wt% Sn. Ca =20 Wt% pb, CL=60 Wt% pb and Ca =80 Wt% Sn, CL=40 Wt% Sn. Ca =22 Wt% pb, CL=65 Wt% pb and Ca =78 Wt% Sn, CL=35 Wt% Sn. Ca =15 Wt% pb, CL=63 Wt% pb and Ca =85 Wt% Sn, CL=73 Wt% Sn. Temperature ("C)
5
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1200 50% Ag 71.9% Ag 1100 1000 900 100% Cu Temperature (°C) 800 8% Ag\ 20% Ag 700 Time 100% Ag 90% Ag Figure V Cooling curves for a series of Cu-Ag alloys. 11. Cooling curves are obtained for a series of Cu- Ag alloys. Use the data in Figure 4 to produce the Cu-Ag phase diagram. The maximum solubility of Ag in Cu is 7.9% and the maximum solubility of Cu in Ag is 8.8%. The solubilities at room temperature are near zero.
Parvinbhai

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