Answer part (iv) and (v) Question One (Compulsory)Composition (atk Sn)10020406080327CB00300Liquid500232C400200183C07.818.361.9300100-H200100BO100204060Pb)Compesition (wt% Sn)Figure 1: Lead -tin phase diagramFigure I above shows a lead-tin (alloy) phase diagram. Consider an alloy composition of 55 wt%Sn - 45 wt% Pb. Answer the following questions:(i)Name the phases present and their compositions in the alloy at 150°C.(ii)Describe the structural and composition changes in the alloy when it is cooled from 190°Cto 20°C.(iii) What are the compositions of phases at the eutectic point and why is this point important for thealloy?(iv) Given that the average density of a phase is determined as Pa =100,calculate thePAPBvolume fractions of the phases at the given compositions and at 150°C. Take the densities oflead and tin as 11.34 g/cm' and 7.36 g/cm' while the mass fraction of a is 0.21.(v)Name and describe four industrial applications of lead-tin alloys.ta aroundu(3.) arudua

Answered: Image /qna-images/answer/af169ec2-bf9b-44eb-b79d-4239016883e6.jpg

Answered: 100 (iv) Given that the average density…

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

See similar textbooks

Similar questions

BINARY PHASE DIAGRAMS Please only answer parts d and e as the rest have been solved. Show full detailed explanation to answers with diagrams if necessary a)(i) What is the melting point of pure Mg?(ii) What is the maximum solubility of Mg in Pb and at what temperaturedoes this occur? (b) A 50 wt.% Pb-50wt% Mg alloy is slowly cooled from 700 °C to 400 °C.(i) At what temperature does the first solid phase form?(ii) What is the composition of this solid phase?(iii) At what temperature does all the liquid solidify?(iv) What is the composition of the last remaining liquid phase?(v) What is the freezing range? (c) What is the mass fraction of solid and liquid of a 60 wt.% Mg alloy at atemperature of 500 °C.(d) Draw and label the microstructure of an 80 wt.% Mg alloy at 600 °C.(e) A Mg-Pb alloy of mass 5.5 kg has a composition just slightly below thesolubility limit of 200 °C.(i) What mass of lead is in the alloy?(ii) If the alloy is heated to 350 °C how much more lead can be dissolvedin…
11.15) Make a copy of the isothermal transforma- tion diagram for an iron-carbon alloy of eutectoid composition (Figure 11.14) and then sketch and label on this diagram time- temperature paths to produce the following microstructures: (a) 100% coarse pearlite. (b) 100% tempered martensite. (c) 50% coarse pearlite, 25% bainite, and pearl- 25% martensite.
Question: Construct the hypothetical phase diagram for metals A and B between room temperature (20°C) and 700°C given the following information: The melting temperature of metal A is 480°C. The maximum solubility of B in A is 4 wt% B, which occurs at 420°C. The solubility of B in A at room temperature is 0 wt% B. One eutectic occurs at 420°C and 18 wt% B–82 wt% A. A second eutectic occurs at 475°C and 42 wt% B–58 wt% A. The intermetallic compound AB exists at a composition of 30 wt% B–70 wt% A, and melts congruently at 525°C. The melting temperature of metal B is 600°C. The maximum solubility of A in B is 13 wt% A, which occurs at 475°C. ● The solubility of A in B at room temperature is 3 wt% A.
70) The lowest melting point for steel to be taught in the iron carbon phase diagram...A) eutectoidB) monocriticalC) eutecticD) subeutectoidE) peritectic 71) Which is not a surface texture parameter?A) roughnessB) cutting lengthC) arrayD) wavyE) hardness 72) Where do negative ions go in the electrochemical apparatus?A) to solutionB) to the cathodeC) first to the cathode, then to the anodeD) first to the anode, then to the cathodeE) anode
1-The microstructural design of Iron-Carbon(Fe-C) alloys has led to the development of vast range of steels for structural material applications. The phase diagram provide means for producing specific microstructures. Using the phase diagram below to answer the following questions A – If the liquid mixture of Fe-3%Wt C is slowly cooled from 1600 C to 1200C indicate the phase(S) that are present at 1200 C . Also calculate the composition of the of phases.(10) B-Describe the sequence of all phase transformation that accour from Fe-1.5%wt C is slowly cooled from 1600 C to 400 C. Use the diagram below to to describe the microstructures for each phase transformation (10)
From the phase diagram of the Fe-0.25wt%C alloy below, determine the phase fraction and elemental composition of the resulting phase immediately after solidification across the eutectoid line (725 C). a.alpha_eutectoid = 96.6 wt% and cementite = 29.85 wt% b.alpha_eutectoid = 96.6 wt% and cementite = 3.4 wt% c.alpha_eutectoid = 1.05 wt% and cementite = 29.85 wt% d.alpha_eutectoid = 29.85 wt% and cementite = 1.05 wt%
Question : Make an initial estimation of the composition of your Sn-Bi alloy based on your cooling curve data. You should turn in a graph of the cooling curve data with any critical temperature(s) associated with phase transformations indicated. Based on these temperatures, provide an estimate of the possible alloy compositions of your specimen. In addition to a quantitative result, illustrate with vertical line(s) and/or shaded region(s) on the Sn-Bi phase diagram. Additional Information : I have provided the grpah of the cooling curve. Please just mar where the critical temp would be on the graph. I also provided wit the phase diagram needed. Please follow the above intructions and give me the solution
Draw the iron-Fe3C phase diagram. Consider 0.4 and 1.1 wt% C steel alloy. It is cooled slowly from a temperature within austenite phase to room temperature. Show a) microstructure at 1000 °C b) microstructure at 730°C c) microstructure at 715°C and d) microstructure at room temperature e) determine the phase present, the phase compositions at 715 and 730 °C f) What do you say about mechanical properties of these alloys, depending on their microstructure at room temperature?
Use the Lead-Tin (Pb-Sn) phase diagram below to answer the following questions: Place the following microstructures in the correct order of formation for slowly cooling a 98 wt% Sn alloy from 300 °C to room temperature (point A to point B).
According to the lead-tin phase diagram below, what is the maximum solubility of lead in tin? a) 2.2 wt% b) 18.3 wt% c) 81.7 wt% d) 97.8 wt%
Material science Assuming this system forms a laminar type eutectic, determine the volume proportion of phases for an equilibrium solidified 50% Pb alloy. Sketch the expected microstructure.
10.27 A hypothetical A-B alloy of composition 55 wt% B-45 wt% A at some temperature is found to consist of mass fractions of 0.5 for both a and 8 phases. If the composition of the B phase is 90 wt B-10 wt% A, what is the composition of the a phase?

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS