Solve this and show all of the work Temperature (°C)11-23 A Pb-Sn alloy contains 23% primary a and 77% eutectic microconstituent.Determine the composition of the alloy.400300SolidusLLiquidusLiquidusα+LSolidus200αL+B-B19183°61.997.5SolvusSolvus-100α+βPb20406080SnWeight percent tinFigure 11-6The lead-tin equilibrium phase diagram. (Credit: Cengage Learning 2014)

Given:23% primary alpha phase77% eutectic microconstituentApplying lever rule:0.23 = CL-C0/CL-CaCL…

Answered: Temperature (°C) 11-23 A Pb-Sn alloy…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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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)
Draw thermal equilibrium diagram for the binary alloy system (Si-Au), from the following data:- a- Silicon melts at 1414 °C, and gold melts at 1064 °C. b-Eutectic is formed at 360°C containing 20 Wt% Si -80 Wt% Au, and identify all phases are present in the diagram c-Determine the amount of each phase for the alloy which consist of 60 Wt% Si- 40Wt % Au at 1200 °C and 800 °C ,then determine the amount of eutectic at 200 °C?
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According to Reference [1], alloys of nickel (Ni) and tungsten (W) are can form substitutional solid solutions up to approximately 11 at% W. Consider two different alloy compositions: Ni-5W (5 at% W) and Ni-10.5W (10.5 at% W). A. Which composition should be more ductile? B. Which composition should be stronger? C. Using the oy~ C¹/2 relationship from the lecture slides, how many times larger should the yield strength be for Ni-10.5W compared to Ni-5W? D. Where should the tungsten atoms sit relative to the dislocation on or opposite the side with the extra half-plane? You will need information from Appendixes of the textbook.
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Referring to Figure 1, answer the following: What are the liquidus and solidus temperatures for an 80%Pb20%Tl alloy? What is the composition of the solid solution phase for the aforementioned alloy once we hit the liquidus temperature upon cooling? For the same alloy above, use the inverse lever rule to calculate the %solid and %liquid at 325C
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
Consider the binary Magnesium-Lead phase diagram below.
answer all the parts from a-c
iii) For a 68 wt% Zn-32 wt% Cu alloy, make schematic sketches of the microstructure that would be observed for conditions of very slow cooling at the following temperatures: 1000°C, 760°C, 600°C and 400°C. Label all phases and indicate their approximate compositions. Comportion a In 20 40 60 100 1200 |2200 H2000 Liquid 1000 - 1800 デ+ダ H1600 J400 E 1200 600 400 『+キ 600 200 400 40 60 Conpositon tet% Zro
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