Please help me answer #8. A and b. Thank you! 6:16 PM Sun Oct 2533% O20290008 PDF(a) Construct the composition-temperature phase diagram for the Cu-Ni system.(b) What are the phases present and what are their respective compositions for each of themixtures at the temperature given in the table below?composition(atomic % Ni)T(°C)11201512005513006024 6:16 PM Sun Oct 2533% O20290008 PDF7. The following data have been found for the system antimony-cadmium:Weight % CdFirst break in cooling20 37.5 47.5505870 93100550461419400curvePlateau in cooling curve630410410410410439295295321Construct the phase diagaram, assuming that no breaks other than those actually occur inthe cooling curve. Label the diagram, and give the formula of any compound formed.8. For the binary system Cu-Ni, the following data are available from cooling experiments:melt composition(atomic % Ni)composition of solidfirst formed on cooling(atomic % Ni)T(°C)1100101180203723126040571340607314108087

Data given- Cu-Ni binary system

(a) Construct the composition-temperature phase diagram for the Cu-Ni system. (b) What are the phases present and what are their respective compositions for each of the mixtures at the temperature given in the table below? composition (atomic % Ni) T(°C) 1120 15 1200 55 1300 60

(a) Construct the composition-temperature phase diagram for the Cu-Ni system. (b) What are the phases present and what are their respective compositions for each of the mixtures at the temperature given in the table below? composition (atomic % Ni) T(°C) 1120 15 1200 55 1300 60

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

Question 5 Composition (at% C) 10 15 20 25 1600 1538°C 1493°C L. 1400 2500 1394°C y+L 1200 1147°C 2.14 4.30 Y. Austenite 2000 1000 912°C y+ Fezc 800 -a 1500 727°C 0.76 0.022 600 a, Ferrite a+ FezC Cementite (Fe3C) 1000 400 5 6. 6.70 (Fe) Composition (wt% C) Figure 2: Iron- carbon phase diagram (a) State THREE (3) solubility categories of the phase diagram. (b) By referring to the Iron-Carbon phase diagram in Figure 2: (i) Determine the maximum solubility of carbon in a iron (ferrite) and in y-iron (austenite). (ii) Calculate the percentage of phases (a and y) present at 728°C for 0.5%wt carbon. (ii) Sketch the phase(microstructure) as your answer b(ii). Temperature ("C) Temperature (F)
13 °C 900 800 700 600 500 400 300 200 100 S CONTINUOUS COOLING TRANSFORMATION DIAGRAM '44' C ANALYSIS Wt% (See note on page 8) Mn PS Cr 0.81 0.035 0.037 0.14 Ac, Ac₁ M₂ mm 0,1 BAR 15 DIAMETER C Si 0.44 0.28 10 M 0.2 10 + + I 20 A 50 5 Mo 0.04 50 AUSTENITISED AT 850 C PREVIOUS TREATMENT ROLLED 1000 COOLING RATE AT 700 C Ni Al 0.15 500 200 100 10 - 100 20 Nb 50 50 100 150 200 V Cu 0.12 20 10 C PER MIN 100 200 1 300 150 200 300 500 500 Sn 0.016 5 START] FINISH 500 1000 mm OIL -mm WATER 10% 50% 90% 2000 mm LAIR Figure A3-2: CCT diagram for AISI 1044 with applicable 20 mm bar diameter annotation for water (black dashed line) and air (red dashed line). F = ferrite, P = pearlite, B = bainite and M = martensite.
Problem 1 A 30 wt% Sn-70 wt% Pb alloy is heated to a temperature within the aliquid phase region. If the mass fraction of each phase is 0.5, estimate: (a) The temperature of the alloy (b) The compositions of the two phases 300 100 327€ (PH) 20 wit 18.3 40 20 183°C 4.8 Composition Lik 61.9 80 232°C 97.8 100 1000 500 1400 300 200 -100 Problem 2 An alloy of composition 80 wt% Sn-20 wt% Pb is slowly cooled from the melt to the temperature 182°C, just below the eutectic temperature. a) Determine the mass fraction of the a phase. b) Determine the mass fraction of the eutectic structure. 0 300 200 100 % 327°C (Pb) a.L 18.3 40 T 20 Composition at S 60 T 183C 40 Liquid 61.9 60 Composition (wt% Se RO 2+2 80 2820 97 A 100 4600 1500 400 H300 & 200 -100 T 100 (SA) Problem 3 A plain carbon-steel alloy of composition 98.6 wt% Fe and 1.4 wt% C is cooled to the temperature 720°C, just below the eutectoid temperature. a) Make a schematic sketch of the microstructure, label all phases, and indicate their…
Question One (Compulsory) Composition (atk Sn) 100 20 40 60 80 327C B00 300 Liquid 500 232C 400 200 183C 07.8 18.3 61.9 300 100- H200 100 BO 100 20 40 60 Pb) Compesition (wt% Sn) Figure 1: Lead -tin phase diagram Figure 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°C to 20°C. (iii) What are the compositions of phases at the eutectic point and why is this point important for the alloy? (iv) Given that the average density of a phase is determined as Pa = 100 ,calculate the PA PB volume fractions of the phases at the given compositions and at 150°C. Take the densities of lead 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.)…
Question 9 An Ag-Cu alloy contains 25% a and 75% B at 600"C. The composition of the overall alloy is approximately 1000 L+B 800 a /8.87. 28-12 9224 a +8 500 972 400 Ag 10 20 30 40 50 60 70 80 90 Cu Cu (by weight) O A. 73.5% Cu OB. 65.8% Cu OC. 89.6% Cu D 80.2% Cu
For a Fe-C alloy with a eutectoid composition, an austenite was rapidly cooled down to 450°C, held for 10 sec, and quenched to room temperature. What is the final microstructure based on its TTT curve? Amount Temperature of Transformation, C 700 600 500 400 300 200 Ae₂! Ae₁ Austenite unstable Ms. 10 10² 103 104 105 seconds Austenite stable 50%- 100 MF TELEP P 100% completed F+B Coarse Pearlite - Fine Pearlite -Upper Bainite (Feathery) Lower Bainite → Martensite + Bainite Martensite 1 1sec 1 min 1hr Transformation Time (Log. Scale) O a. 50% bainite and 50% martensite O b. 50% austenite and 50% bainite O c. 100% bainite O d. 100% martensite Finer Lamellac Bainitic Pearlitic Austenite Fine more Acicular Rapid Etching Martensitic cicular, Slow Etching V.P.H. 210 320 450 700 750
Design of a Melting Procedure for a Casting You need to produce a M=1000 kg Cu-Ni alloy having minimum yield strength of Sy = 20,000 psi, a minimum tensile strength of Sut = 60, 000 psi, and a minimum % elongation of 20%. %3D You have in your inventory a Cu-20% Ni alloy and pure 1500 1400 1300 1200 nickel. 1100 1000 Design a method for producing castings having the required properties. 80,000 80 Tensile strength Cu strengthens Ni 60,000 60 40,000 40 Ni strengthens Cu % Elongation 20.000 20 Yield strength 20 40 80 Weight percent nickel 60 Ni Strength (psi) Temperature ('C) &Elongation
What is the solubility limit of Cr203 in the solid at 2025C? Al,03-Cr,03 Phase Diagram 2300 2250 Liquid 2200 2150 Liquid+Solid 2100 Solid 2050 2000 10 20 30 40 50 60 70 90 100 Al,O3 Wt% Cr,O3 Cr,03 O There is no solubility There is unlimited solubility 20 wt% Cr203 O 50 wt% Cr203 Temperature, °C 80
Carbonitriding is a case-hardening process in which a steel is heated in a gaseous atmosphere of such composition that carbon and nitrogen are absorbed simultaneously. Carbonitriding is a modification of the nitriding process. True False Based upon the percent elongation of a tensile sample, a ductile engineering material is defined by a value equal to or greater than 5% and a brittle material is defined by a value less than 5%. True False
For the equilibrium silver-copper system, if you were at a temperature of 779°C and a composition of 60 wt% Cu, what fraction of the system would be in the a phase? Your answer should be in the form of a percentage (a value 0-100). °C 1084.5 1000 961.93 900 a +L B+L 800 780 80 71.9 91.2 700 600 a+B 500 400 Cu 10 20 30 40 50 60 70 80 90 Ag Weight Percent Silver
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)
Use the Cu-Ag Phase Diagram below to answer the following questions Composition (at% Ag) 20 40 60 80 100 2200 1200 A 2000 Liquidus 1000 Liquid 1800 Solidus C F a +L 1600 * 800 779 C (T) B+L E G 91.2 (Ceg 8.0 71.9 1400 (Cg). 1200 600 Solvus 1000 a +B 800 400 600 200 o 400 100 20 40 60 80 (Cu) Composition (wt% Ag) (Ag) Temperature ("C) Temperature ("F)