Loose Leaf For Foundations Of Materials Science And Engineering
6th Edition
ISBN: 9781260049169
Author: William Smith, Javad Hashemi, Prof.
Publisher: McGraw-Hill Education
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Chapter 4.8, Problem 58SEP
To determine
Discuss all the ways by which the addition of
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A 50 wt% Ni–50 wt% Cu alloy is heated to a temperature within the a liquid-phase region. If the composition of the alpha phase is 58 wt% Ni, determine (b) the composition of the liquid phase in wt% Ni
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A copper-nickel alloy of composition 75 wt% Ni-25 wt% Cu is slowly heated from a
temperature of 1300°C (1573).
(a) At what temperature does the first liquid phase form?
(b) What is the composition of this liquid phase?
T(°C)
1600
(c) At what temperature does complete melting of the alloy occur?
(d) What is the composition of the last solid remaining prior to complete melting?
1500
1400
1300
1200
1100
1000
17 / 17
0
L (liquid)
20
liquidus
+ a
solidus
100%
40
α
(FCC solid
solution)
60
80
100 wt% Ni
17
A 50 wt% Pb-50 wt% Mg alloy is slowly cooled from 700 °C (1290 °F) to 400 °C (750 °F).
(a) At what temperature does the first solid phase form?
(b) What is the composition of this solid phase?
(c) At what temperature does the liquid solidify?
(d) What is the composition of this last remaining liquid phase?
Temperature (°C)
700
600
500
400
300
200
100
2
0
0
(Mg)
560°C
First solid
(21 wt% Pb)
α
20
465°C
5
a + L
Composition (at% Pb)
40
10
L
a + Mg₂Pb
20
60
Composition (wt% Pb)
Last liquid
(67 wt% Pb)
30
Mg₂Pb
40
T T
L
+
Mg₂Pb M
18
80
L
+
Mg₂Pb
70 100
B
B+
Mg₂Pb
T
B
+
L
D
T
1200
1000
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400
200
100
(Pb)
Temperature (°F)
Chapter 4 Solutions
Loose Leaf For Foundations Of Materials Science And Engineering
Ch. 4.8 - Prob. 1KCPCh. 4.8 - Define the homogeneous nucleation process for the...Ch. 4.8 - In the solidification of a pure metal, what are...Ch. 4.8 - In the solidification of a metal, what is the...Ch. 4.8 - During solidification, how does the degree of...Ch. 4.8 - Distinguish between homogeneous and heterogeneous...Ch. 4.8 - Describe the grain structure of a metal ingot that...Ch. 4.8 - Distinguish between equiaxed and columnar grains...Ch. 4.8 - How can the grain size of a cast ingot be refined?...Ch. 4.8 - Prob. 10KCP
Ch. 4.8 - Prob. 11KCPCh. 4.8 - Prob. 12KCPCh. 4.8 - Distinguish between a substitutional solid...Ch. 4.8 - What are the conditions that are favorable for...Ch. 4.8 - Prob. 15KCPCh. 4.8 - Prob. 16KCPCh. 4.8 - Prob. 17KCPCh. 4.8 - Prob. 18KCPCh. 4.8 - Describe the structure of a grain boundary. Why...Ch. 4.8 - Describe and illustrate the following planar...Ch. 4.8 - Prob. 21KCPCh. 4.8 - Describe the optical metallography technique. What...Ch. 4.8 - Prob. 23KCPCh. 4.8 - Prob. 24KCPCh. 4.8 - Prob. 25KCPCh. 4.8 - Prob. 26KCPCh. 4.8 - Prob. 27KCPCh. 4.8 - Prob. 28KCPCh. 4.8 - Prob. 29KCPCh. 4.8 - Prob. 30KCPCh. 4.8 - Prob. 31KCPCh. 4.8 - Calculate the size (radius) of the critically...Ch. 4.8 - Prob. 33AAPCh. 4.8 - Prob. 34AAPCh. 4.8 - Calculate the number of atoms in a critically...Ch. 4.8 - Prob. 36AAPCh. 4.8 - Prob. 37AAPCh. 4.8 - Prob. 38AAPCh. 4.8 - Prob. 39AAPCh. 4.8 - Prob. 40AAPCh. 4.8 - Prob. 41AAPCh. 4.8 - Prob. 42AAPCh. 4.8 - Determine, by counting, the ASTM grain-size number...Ch. 4.8 - Prob. 44AAPCh. 4.8 - For the grain structure in Problem 4.43, estimate...Ch. 4.8 - Prob. 46AAPCh. 4.8 - Prob. 47SEPCh. 4.8 - Prob. 48SEPCh. 4.8 - Prob. 49SEPCh. 4.8 - Prob. 50SEPCh. 4.8 - In Chapter 3 (Example Problem 3.11), we calculated...Ch. 4.8 - Prob. 52SEPCh. 4.8 - Prob. 53SEPCh. 4.8 - Prob. 54SEPCh. 4.8 - Prob. 55SEPCh. 4.8 - Prob. 56SEPCh. 4.8 - Prob. 57SEPCh. 4.8 - Prob. 58SEPCh. 4.8 - Prob. 59SEPCh. 4.8 - Prob. 60SEPCh. 4.8 - Prob. 61SEPCh. 4.8 - Prob. 62SEPCh. 4.8 - Prob. 63SEPCh. 4.8 - Prob. 64SEPCh. 4.8 - Prob. 65SEPCh. 4.8 - Prob. 66SEP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 2: Consider a Cu-80wt% Ni-20% alloy, determine the following: (a) The liquidus and solidus temperature of alloy. (b) The composition of last liquid to solidify. (c) The composition of last solid to melt. (d) The composition of the solid and liquid phases at 1175 °C. (Draw the microstructure at this points) (e) The amount of the solid and liquid phases at 1175 °C. Composition (at% Ni) 20 40 60 80 100 1600 2800 1500 Liquid 1453 C 2600 1400E Solidus line Liquidus line 2400 1300 1200 2200 1100 2000 1085 C 1000 20 40 60 80 100 (Cu) Composition (wt% Ni) (Ni) Temperature ("F)arrow_forwardA sample of bronze is composed of 12 wt% tin, 3 wt% aluminum, and 85 wt% copper. Determine at% of tin in the alloy.arrow_forwardConsider 2.4 kg of a 99.7 wt% Fe-0,3 wt% C alloy that is cooled to a temperature just below the eutectoid. The iron-iron carbide phase (a) How many kilograms of proeutectoid ferrite form? kg (b) How many kilograms of eutectoid ferrite form? kg (c) How many kilograms of cementite form? kgarrow_forward
- Copper-Nickel alloy is widely applied in industry. (a) List at least three applications where Cu-Ni alloy is used; (b) How many components and phases are shown in the below phase diagram? (c) For a mixture of 40 wt% Cu and 60 wt% Ni at 1320 oC, what phases are present? Identify theamount of these phases by applying “lever rule”.arrow_forwardWhich of the following alloys would form a complete substitutional solid solution? O Metal 1 is HCP, metal 2 is FCC, and atomic radius difference is less than 15%. O Metal 1 is BCC, metal 2 is BCC, and atomic radius difference is at least 15%. O Metal 1 is FCC, metal 2 is FCC, and atomic radius difference is 12%. O Metal 1 is BCC, metal 2 is FCC, and atomic radius difference is 12%. O Metal 1 is FCC, metal 2 is FCC, and atomic radius difference is 15%.arrow_forwarda. Determine the composition of each phase in a Cu-40% Ni alloy at 1300°C, 1270°C, 1250°C, and 1200°C. b. Calculate the amounts of α and L at 1250°C in the Cu-40% Ni alloyarrow_forward
- Problem 4 A 50 wt% Ni-50 wt% Cu alloy is slowly cooled from 1400°C (2550°F) to 1200°C (2190°F). (a) At what temperature does the first solid phase form? (b) What is the composition of this solid phase? (c) At what temperature does the liquid solidify? (d) What is the composition of this last remaining liquid phase?arrow_forward1 Al-Li Aerospace Alloys When a small amount of Li is added into Al to create an Al-Li alloy, the two elements typically do not mix homogeneously. Instead, most of the material is nearly-pure Al, while some small regions are Li-rich.¹ (These small regions are called precipitates and they are responsible for giving Al-Li alloys much better properties for aerospace applications relative to pure Al. We'll learn more about the alloying process and about precipitates later in the course.) The Li-rich regions have the chemical formula Al3Li and belong to the cubic crystal system.² In the unit cell, the Li atoms are located at 000, while the Al atoms are located at 110, 101, and 01121. (a) Draw the unit cell of Al3Li. (b) Which of the crystal structures from Callister Chapter 3 does this resemble? Why do we not call it that structure? (c) Given that the lattice parameter is 0.401 nm, what is the density of Al3Li?arrow_forwarda combination of elements which possesses metallic properties is called an alloy. discuss how alloying of metals increases its mechanical propertiesarrow_forward
- What kinds of dispersion hardened alloys can retain their strength up to 1000 ° C?arrow_forwardUse the copper silver phase diagram below. 100g of a 40 wt% Cu 60 wt% Ag alloy is made and cooled from liquid form. a. At what temperature does the solid phase start to appear? b. What phases exist at 780°C? c. What are the compositions (Cu and Ag%) of the phases in question b? d. What are the weights (in g) of Cu in the solid phase and liquid phase in question b?arrow_forwardFigure below is a binary eutectic copper-silver phase diagram. Consider if 500 grams of an 88 wt% Ag–12 wt% Cu alloy is slowly cooled from 1000oC to 700oC. α-phase is copper-rich solid solution and β-phase is silver-rich solid solution. Density of copper and silver is 8.96 g/cm3 and 10.49 g/cm3 respectively. At 700oC, determine the: 1)composition of the phases present.arrow_forward
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