Q1) The solid phase of a point (in the two-phase region) in the Bi-Sb alloy contains 80 at% of Sb. Thefraction of the liquid phase of this point is approximately 0.27. From the figure, find the followinginformation of this point:650630.6 °C1- The temperature.2- The overall alloy composition (C.).3- The composition of the liquid phase.4- The fraction of the solid phase.600550LiquidO 500450400350300271.4 °C25020010304050608090100BiAtomic percent SbSb7020Temperature (°C)

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Answered: Q1) The solid phase of a point (in 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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help pls A two-phase phase diagram is shown. Answer the following questions t -1300 1500+ Temperature 1100 0 34 54! 166 482 80 Composition of Ni % 20 What is the composition (in % Cu) of the solid phase corresponding to the red dot in between the solidus and liquidus lines in the phase diagram? Just write the number. Do not write the % symbol. Question 17 2.33 100 An alloy is being made with 66% Ni and 34% Cu. When it is cooled from 1500°C to the temperature corresponding to the red dot in the phase diagram, how many kg of liquid is present in the mixture?
2. Determine the amount of liquid phase in the a Cu-50% Ni alloy at 1300°C, % L 1500 1400 L. C +L 58 1300 1200 1100 1000 Cu 20 40 60 80 Ni Weight percent nickel Temperature (°C)
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)
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)
Is it possible to have a copper-nickel alloy that, at equilibrium, consists of a liquid phase of composition 20 wt% Ni-80 wt% Cu and also an a phase of composition 37 wt% Ni-63 wt% Cu? If so, what will be the approximate temperature of the alloy? If this is not possible, explain why. Temperature (°C) 1600 1500 1400 1300 1200 1100 1000 0 1085°C (Cu) 20 Liquid Liquidus line L B 40 a+L a A 60 Composition (wt% Ni) (a) 1455°C Solidus line 80 2800 2600 2400 2200 2000 100 (Ni) Temperature (°F) Temperature (°C) 1300 1200 20 Liquid Tie line. a + Liquid a 1 KR I 1 1 B ↑ Co a + Liquid -S 30 CL Composition (wt% Ni) (b) 40 1 Ca a 50
Given the Cu-Zn phase diagram below, determine the amount of the phase/s present of a 75 wt% Zn -25 wt% Cu alloy for the following temperatures. Indicate the required composition for each temperature in the diagram. Round off your final answers up to two decimal places. Show your solutions completely and neatly and follow the table format below, Temperature Phase/s present Phase composition Relative amount 600 °C 570 °C y+ L 700 1200 8+L L 600 P 598°C 560°C 570 |1000 e + L y +e 500 60 68.6 70 74.3 75 78.2 80 90 Composition (wt % Zn) Temperature (°C) ta Temperature (°F)
700 L 600 M a + L Mg, Pb 500 P 465 400 L Mg Pb 300 200 a + Mg Pb B+ Mg Pb 100 20 40 60 80 100 Mg Composition (wt% Pb) Pb Mg,Pb Using the above figure, sketch neatly the microstructure of the alloys (given in the below table) and determine the amount of each phase presented. Structure of the alloys at different compositions 田 Compositions &temperature 10%Pb,90%Mg Structure Structure Compositions &temperature 20%Pb, 80%Mg @400°C @0°C My.Pb 50%Pb,50%Mg 67%Pb, 33%Mg @0°C Mgz PB @0°C 81%Pb,19%Mg 90%Pb,10%Mg @200°C @0°C Temperature ("C)
Consider 1 kg of tin-bismuth alloy (Sn-Bi) containing 40 wt% Bi. The phase diagram of the alloy is shown in the figure below. The alloy is cooled to 138 "C (just below the eutectic temperature). How many kilograms of phase B form? 300 271°C 232°C 200 Bi + L В +L 139 C 21 100 Bi - В + Bi 13°C vate Windows 100gs to activate Windows (Bi) 20 40 60 80 (Sn) 6:37 PM A 4) ENG 57 B. Temperature (°C)
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QI/ Draw a thermal equilibrium diagram for the binary alloy system (Si –Au), from the following data:- a- Si melts at 1414 °C, and Au melts at 1064 °C , and identify all phases are present in the diagram. b- Eutectic is formed at 360°C containing 20 Wt% Si -80 Wt% Au . c- Determine the amount of each phase for the alloy which consist 60 Wt% Si- 40Wt % Au at 1200 °C and 800 °C ,then determine the amount of eutectic at 200 °C?
Temperature (°C) 700 600 0 500 400 300 0 (AI) a 5 a+L 10 Composition (at% Cu) 10 20 a +0 L 30 Composition (wt% Cu) 20 0+ L 0 (CuAl₂) 40 30 50 1200 1000 800 600 Temperature (°F) a) For the alloy represented by the phase diagram above, what is the wt% content of eutectic if an alloy of 2.5 wt% Cu is cooled very slowly from the molten state to 300°C? b) What phases are present in 2.5 wt% Cu material if it is quenched from 550°C?
For a copper-silver alloy of composition 9.7 wt% Ag-90.3 wt% Cu and at 775°C (1425°F) (see Animated Figure 9.7) do the following: (a) Determine the mass fractions of a and phases. Mass fraction a = i Mass fraction = i (b) Determine the mass fractions of primary a and eutectic microconstituents. Mass fraction a primary = i Mass fraction eutectic = i (c) Determine the mass fraction of eutectic a. Mass fraction a eutectic = i

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