Consider the Al-Li phase diagram below and answer the following questions.800Temperature (°C)700L6004 20.42α500β9.9400-Y3002001000ΑΙ204060α (Li)-80LiWeight percent lithium1) What is the melting point of pure Al? (2 pts)2) What is the approximate maximum solubility of Li in Al (a phase)? At what temperaturethat occurs? (6 pts)3) The phase constitution and their weight fraction at the points i) 10.0 wt.% Li and 200°C, ii)30 wt.% Li and 600°C. (12 pts)4) Name the types of reactions that occur at the two circles locations, write down the phasesinvolved before and after the reaction, and their relative weight fractions (if more than onephases) before and after the reactions. (13 pts)5) For the 5 wt.% Li alloy, initial fully liquid, write down at what temperature phaseboundaries are crossed and the reaction that happens at the boundaries when it is graduallycooled down to room temperature. (9 pts)6) Draw the microstructure of the 5 wt.% Li alloy after cooling to room temperature assumingan equilibrium transformation. Please mark the phase constitution of distinct domain in thedrawing. (3 pts)

Step 1: (1.)"Pure Al" refers to 100% Al.The provided diagram indicates that 650° C is the melting…

Answered: Consider the Al-Li phase diagram below…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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700 L 600 м a + L Mg, Pb 500 O 465 400 Mg Pb 300 200 a + Mg Pb B+ Mg,Pb 100 20 40 60 80 100 Mg Composition (wt% Pb) Pb Mg Pb Figure 1 The Mg/Pb phase diagram 1. The Pb% to gain alpha grain with Mg2Pb on the boundary of alpha at the room temperature. ANSWER: From the diagram, the required Pb% is 40% since it corresponds to the boundary eutectic. 2. Is it possible to gain beta grain with Mg2Pb on the boundary at the room temperature of an alloy? Explain ANSWER: It is not possible to get grain on Mg2Pb since the eutectic composition will be varied, which in turn will lose the composition strength. 3. What is the mount of alpha in an alloy (50%Mg +50%Pb) at temperature of 500oC? ANSWER: The mount of alpha in the alloy 50% Mg + 50 % Pb at 500 C will correspond to the eutectic composition at the 70% of Pb, i.e; the mount = 70/100 = 0.7 % of Pb 4. What is the mount of alpha in the alloy (50%Mg +50%Pb) at the room temperature? ANSWER: The mount of alpha in the alloy 50% Mg + 50 % Pb at room…
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A binary alloy having 28 wt% Cu and balance Ag solidifies at 779°C. The solid consists of two phases a and B. Phase a has 9% Cu whereas phase ß has 8 % Ag at 779°C. At room temperature these are pure Ag and Cu respectively Sketch the phase diagram. Label all phases and temperatures. The melting points of copper and silver are 1083 and 9610 respectively s Pà) Estimate the amount of a and B in the above alloy at 779°C and at room temperature.) b) Calculate the mass fraction of phases for 40% Cu alloy at 300 °C and TR c) What is the composition of the alloys in (b)
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