Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492825
Author: Black, J. Temple, Kohser, Ronald A., Author.
Publisher: Wiley,
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Textbook Question
Chapter 5, Problem 40RQ
In what ways is the quench�and�temper heat treatment similar to age hardening? How are the property changes different in the two processes?
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Chapter 5 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 5 - What is heat treatment?Ch. 5 - What types of properties can be altered through...Ch. 5 - Why should people performing hot forming or...Ch. 5 - What is the broad goal of the processing heat...Ch. 5 - Why might equilibrium phase diagrams be useful...Ch. 5 - What are the A1, A3, and Acm lines?Ch. 5 - What are some possible objectives of annealing...Ch. 5 - Why might it be important to include a preceding...Ch. 5 - Describe the cooling conditions of a full anneal.Ch. 5 - Why are the hypereutectoid steels not...
Ch. 5 - Although full anneals often produce the softest...Ch. 5 - What is the major process difference between full...Ch. 5 - Although normalizing is less expensive than a full...Ch. 5 - Prob. 14RQCh. 5 - What types of steel would be candidates for a...Ch. 5 - How might steel composition influence the...Ch. 5 - Other than increasing strength, for what three...Ch. 5 - What are the six major mechanisms that can be used...Ch. 5 - Prob. 19RQCh. 5 - What is required for a metal to be a candidate for...Ch. 5 - What are the three steps in an age�hardening...Ch. 5 - What is the difference between a coherent...Ch. 5 - What is overaging? Why does strength decrease?Ch. 5 - Describe the various aging responses (maximum...Ch. 5 - What is the difference between natural and...Ch. 5 - Why might naturally aging aluminum rivets be...Ch. 5 - Why is it important not to expose precipitation...Ch. 5 - Why is it more difficult to understand the...Ch. 5 - What types of heating and cooling conditions are...Ch. 5 - What are the stable equilibrium phases for steels...Ch. 5 - What are some nonequilibrium structures that...Ch. 5 - Prob. 32RQCh. 5 - What is the major factor that influences the...Ch. 5 - For a given steel, describe the relative strengths...Ch. 5 - Most structure changes proceed to completion over...Ch. 5 - What is retained austenite, and why is it an...Ch. 5 - What types of steels are more prone to retained...Ch. 5 - Why are martensitic structures usually tempered...Ch. 5 - Why does tempering offer a spectrum of possible...Ch. 5 - In what ways is the quench�and�temper heat...Ch. 5 - What is a C�C�T diagram? Why is it more useful...Ch. 5 - What is the critical cooling rate, and how is it...Ch. 5 - What two features combine to determine the...Ch. 5 - What conditions are used to standardize the quench...Ch. 5 - How do the various locations of a Jominy test...Ch. 5 - How do the data collected from a Jominy test...Ch. 5 - What is the assumption that allows the data from a...Ch. 5 - What is hardenability? How is it different from...Ch. 5 - What capabilities are provided by...Ch. 5 - When selecting a steel for an application, what...Ch. 5 - What are the three stages of liquid quenching?Ch. 5 - What are some of the major advantages and...Ch. 5 - Why does brine provide faster cooling than water?Ch. 5 - Why is an oil quench less likely to produce quench...Ch. 5 - What are some of the attractive qualities of a...Ch. 5 - Prob. 56RQCh. 5 - Prob. 57RQCh. 5 - Prob. 58RQCh. 5 - Prob. 59RQCh. 5 - How might the thermally induced residual stresses...Ch. 5 - Prob. 61RQCh. 5 - Prob. 62RQCh. 5 - Prob. 63RQCh. 5 - What is thermomechanical processing?Ch. 5 - Prob. 65RQCh. 5 - Prob. 66RQCh. 5 - Prob. 67RQCh. 5 - Prob. 68RQCh. 5 - Prob. 69RQCh. 5 - Prob. 70RQCh. 5 - Prob. 71RQCh. 5 - Prob. 72RQCh. 5 - Prob. 73RQCh. 5 - Why does a carburized part have to be further...Ch. 5 - Prob. 75RQCh. 5 - Prob. 76RQCh. 5 - Prob. 77RQCh. 5 - Describe the distinguishing features of a box...Ch. 5 - What are some possible functions of artificial...Ch. 5 - Prob. 80RQCh. 5 - Prob. 81RQCh. 5 - Prob. 82RQCh. 5 - What are some current goals of the heat treatment...Ch. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - What problems might be expected if the material on...Ch. 5 - Describe some heat treatment processes or...Ch. 5 - Prob. 1.3CSCh. 5 - Prob. 1.4CSCh. 5 - Prob. 1.5CSCh. 5 - Prob. 1.6CSCh. 5 - Prob. 1.7CSCh. 5 - Prob. 1.8CSCh. 5 - Prob. 2.1CSCh. 5 - Prob. 2.2CSCh. 5 - How would you alter the procedures or policies of...
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- Why does the hardness decrease at 600 ° C after rising when the tempering processarrow_forwardSelect all that apply. Which parameters are going to affect the ease at which a solid state diffusional phase transformation will nucleaate? Interphase surface energy Undercooling or supercooling Enthalpy of transformation Volume difference between the two phasesarrow_forwardWater has a latent heat of fusion of -334 MJ/m³, surface free energy of 0.195 Jim, and melting point of 0°C. If you cool the liquid to 10°C under t for homogeneous nucleation melt temperature, find the critical radius 31,9 nm O221 nm need neat and clean handwritten solution explaining every steps O 17.8 nm 14.2 nmarrow_forward
- a) Explain the normalizing process in the heat treatment of metals. b) What are the final properties obtained from the tempering process?arrow_forwardWhich of the following phase will be resulted when the transformation temperature of steel is more than 750 °C? *arrow_forwardDuring slow cooling , the resulting microstructure for hypo-eutectoid steel is ..,while for .. . . hyper-eutectoid steel is إجابتك The latent heat of fusion in planer growth is ----- While it removed by removed by in Dendritic Growth إجابتك The main role of tempering is إجابتك Retained austenite represents a large problem in hardened steel, because ******-......... إجابتك The main difference between TTT and CTT diagrams is إجابتكarrow_forward
- Using the TTT diagram, what microstructure would be developed by rapidly cooling to 650°C and holding for 50 seconds, followed by rapid cooling to 500°C and holding for 5 seconds, followed by quenching to room temperature? (give relative percentages of each microstructure component) Using the TTT diagram, describe the entire thermal treatment that would generate a microstructure consisting of 50% bainite, and 50% martensite. On the CCT diagram to the right, what microstructure would be developed by following cooling curve (c), then heating to 700°C for at least a day? Temperature l"C)arrow_forwardAns. 4.44 × 10 rapid quenching from 800 K.arrow_forward1. What is Age Hardening and how does it differ from Quench Hardening? 2. Briefly describe the three steps involved in the Precipitation Hardening process. 3. What are Guinier-Preston Zones? 4. What's the difference between a Coherent and a Non-Coherent Precipitate? 5. Why would the formation of the 0' phase generally be undesirable, and the formation of 0-(CuAl2) be even less desirable, when precipitation hardening an alloy? 6. What metals does a 2024-T4 alloy contain? Briefly define/explain what the T4 represents? 7. What metals does a 6061-T6 alloy contain? Briefly define/explain what the T6 represents? 8. Consider the following three alloys from the Al-Cu system (see Al-Cu Phase Diagram): Pure Aluminum, 3wt%Cu-97wt%Al, and 8wt%Cu-92wt%Al. Which of these alloys is the best candidate for Age Hardening? Why? Which of these alloys is the worst candidate for Age Hardening? Why?arrow_forward
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