Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 8.15, Problem 6KCP
(a) What is a cooling curve? (b) What type of information may be extracted from a cooling curve? (c) Draw a schematic of a cooling curve for a pure metal and one for an alloy. Discuss the differences.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Is it possible to produce and iron-carbon alloy of eutectoid composition that has a minimum hardness of 200HRB and a minimum ductility of 25% RA? If so, describe the continuous cooling heat treatment to which the alloy would be subjected to achieve these properties. If it is not possible, explain why.
A 80%Sn-20%Pb alloy is melted fully at 300°C and then slowly cooled down to 182°C. Sketch the microstructures at 300°C, 200°C, and 182°C, respectively. Label all phases and indicate their approximate compositions. Also, determine the follows for this alloy at 182°C.
(1) The weight fractions of α and β phases.(2) The weight fractions of primary β and eutectic structure.(3) The weight fraction of eutectic β .
What is meant by a phase? Describe an example. And what is the equilibrium phase diagram?
Chapter 8 Solutions
Foundations of Materials Science and Engineering
Ch. 8.15 - Define (a) a phase in a material and (b) a phase...Ch. 8.15 - In the pure water pressure-temperature equilibrium...Ch. 8.15 - How many triple points are there in the pure iron...Ch. 8.15 - Write the equation for the Gibbs phase rule and...Ch. 8.15 - Refer to the pressuretemperature equilibrium phase...Ch. 8.15 - (a) What is a cooling curve? (b) What type of...Ch. 8.15 - Prob. 7KCPCh. 8.15 - What is an alloy? What is the difference between...Ch. 8.15 - Prob. 9KCPCh. 8.15 - What is the significance of the liquidus curve?...
Ch. 8.15 - Prob. 11KCPCh. 8.15 - Prob. 12KCPCh. 8.15 - Prob. 13KCPCh. 8.15 - Describe the mechanism that produces the...Ch. 8.15 - Can coring and surrounding occur in a...Ch. 8.15 - What is a monotectic invariant reaction? How is...Ch. 8.15 - Write equations for the following invariant...Ch. 8.15 - How are eutectic and eutectoid reactions similar?...Ch. 8.15 - Distinguish between (a) a terminal phase and (b)...Ch. 8.15 - Distinguish between (a) an intermediate phase and...Ch. 8.15 - What is the difference between a congruently...Ch. 8.15 - Consider an alloy containing 70 wt% Ni and 30 wt%...Ch. 8.15 - Consider the binary eutectic coppersilver phase...Ch. 8.15 - If 500 g of a 40 wt% Ag60 wt% Cu alloy is slowly...Ch. 8.15 - A lead-tin (PbSn) alloy consists of 60 wt%...Ch. 8.15 - A PbSn alloy (Fig. 8.12) contains 40 wt% and 60...Ch. 8.15 - An alloy of 30 wt% Pb70 wt% Sn is slowly cooled...Ch. 8.15 - Consider the binary peritectic iridiumosmium phase...Ch. 8.15 - Consider the binary peritectic iridiumosmium phase...Ch. 8.15 - Consider the binary peritectic iridiumosmium phase...Ch. 8.15 - In the copperlead (CuPb) system (Fig. 8.24) for an...Ch. 8.15 - For an alloy of Cu70 wt% Pb (Fig. 8.24), determine...Ch. 8.15 - What is the average composition (weight percent)...Ch. 8.15 - Consider an Fe4.2 wt% Ni alloy (Fig. 8.17) that is...Ch. 8.15 - Consider an Fe5.0 wt% Ni alloy (Fig. 8.17) that is...Ch. 8.15 - Determine the weight percent and composition in...Ch. 8.15 - Determine the composition in weight percent of the...Ch. 8.15 - Draw, schematically, the liquidus and the solidus...Ch. 8.15 - Consider the CuZn phase diagram of Figure 8.26. a....Ch. 8.15 - Consider the nickelvanadium phase diagram of...Ch. 8.15 - Consider the titaniumaluminum phase diagram of...Ch. 8.15 - What is the composition of point y in Figure...Ch. 8.15 - In Figure 8.12, determine the degree of freedom,...Ch. 8.15 - The cooling curve of an unknown metal shows a...Ch. 8.15 - In the PbSn phase diagram (Fig. 8.12), answer the...Ch. 8.15 - Based on the CuAg phase diagram in Figure P8.23,...Ch. 8.15 - Based on the PdAg phase diagram in Figure EP 8.3,...Ch. 8.15 - Prob. 49SEPCh. 8.15 - Derive the lever rule for the amount in weight...Ch. 8.15 - Based on the AlNi phase diagram given in Figure...Ch. 8.15 - Prob. 52SEPCh. 8.15 - Based on the Al2O3SiO2 phase diagram in Figure...Ch. 8.15 - (a) Design a CuNi alloy that will be completely...Ch. 8.15 - Prob. 55SEPCh. 8.15 - Given that Pb and Sn have similar tensile...Ch. 8.15 - Consider the sugarwater phase diagram shown in...Ch. 8.15 - In Figure P8.57, if 60 g of water and 140 g of...Ch. 8.15 - In Figure P8.57, if 30 g of water and 170 g of...Ch. 8.15 - At 80C, if the wt% of sugar is 80%, (a) what...Ch. 8.15 - (a) Based on the phase diagram in Figure P8.61,...Ch. 8.15 - Referring to Figure P8.61. explain what happens as...Ch. 8.15 - Referring to Figure P8.61, (a) explain what...Ch. 8.15 - Using Figure P8.40, explain what the phase diagram...Ch. 8.15 - Using Figure P8.40. explain why, according to the...Ch. 8.15 - (a) In the TiAl phase diagram. Figure P8.42, what...Ch. 8.15 - Draw an approximate hypothetical phase diagram for...Ch. 8.15 - Draw the hypothetical phase diagram for a binary...
Knowledge Booster
Learn more about
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
- For a 76 wt% Pb–24 wt% Mg alloy, make schematic sketches of the microstructure that would be observed for conditions of very slow cooling at the following temperatures: 575°C, 500°C, 450°C, and 300°C. Label all phases and indicate their approximate compositions.arrow_forwardThe solubility of tin in lead matches that required for precipitation hardening. Yet tin does not age-harden lead satisfactorily. Suggest a reason why it does not.arrow_forwardWhen alloys A, B, and C are gently cooled from 1000 o C in the following temperature ranges, sketch their microstructures. (equilibrium cooling). List every phase present in the microstructures. Comment on the constituent phases of the resulting alloy and its mechanical characteristics. Please keep it brief.arrow_forward
- Describe the phases present at the eutectic temperature when the overall composition is x(Cu)= 0.5arrow_forwardYou are assured that a Pb-98.5%Sn alloy is good for a treatment of Aging, if we take that information as correct, will it be possible that an alloy Is Pb-10%Sn also very good for that treatment? Justify your answer.arrow_forwardMake a copy of the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition and then sketch and label time-temperature paths on this diagram to produce the following microstructures: 100% fine pearlite. 100% tempered martensite. 50% coarse pearlite, 25% bainite and 25% martensite.arrow_forward
- For a steel with a 0.2 wt%C, what is the mass fraction and composition of phases at 600 (Please draw connections on the graph)arrow_forwardBriefly describe how precipitation hardening happens in Al alloys (how the microstructure evolves as annealing time increases). Why it first forms q” then q’ before q is finally formed? How does the alloy’s strength change during this process? What are the strengthening mechanisms?arrow_forward1. What distinguishing features do eutectoid and martensitic transformations in steel have? Compare and contrast them in brief.arrow_forward
- What is a peritectic phase diagram? Draw a typical equilibrium diagram for a eutectic type of system with limited solid solubility and explain its important features.arrow_forwardFor a 60-40 Pb-Sn alloy, what would the percent of each phase be at 185°C and 180°C?arrow_forwardUsing the isothermal transformation curve for a Eutectoid steel, determine the final structure of alloy for the following cooling processesarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Welding: Principles and Applications (MindTap Cou...Mechanical EngineeringISBN:9781305494695Author:Larry JeffusPublisher:Cengage Learning
Welding: Principles and Applications (MindTap Cou...
Mechanical Engineering
ISBN:9781305494695
Author:Larry Jeffus
Publisher:Cengage Learning
Intro to Ceramics and Glasses — Lesson 2, Part 1; Author: Ansys Learning;https://www.youtube.com/watch?v=ArDFnBWH-8w;License: Standard Youtube License