EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 7RQ
What is strain hardening, and what effects does it have on the properties of metals?
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When is Strain hardening used? How is it performed?
Which material has the larger work hardening exponent?
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Chapter 1 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 1 - What is the difference between an atom and a...Ch. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Define anisotropy. What is its significance?Ch. 1 - What effects does recrystallization have on the...Ch. 1 - What is strain hardening, and what effects does it...Ch. 1 - Explain what is meant by structure-sensitive and...Ch. 1 - Prob. 9RQCh. 1 - What influence does grain size have on the...
Ch. 1 - What is the relationship between the nucleation...Ch. 1 - What is a slip system, and what is its...Ch. 1 - Explain the difference between recovery and...Ch. 1 - What is hot shortness, and what is its...Ch. 1 - Explain the advantages and limitations of cold,...Ch. 1 - Describe what the orange peel effect is. Explain...Ch. 1 - Some metals, such as lead, do not become stronger...Ch. 1 - Describe the difference between preferred...Ch. 1 - Differentiate between stress relaxation and stress...Ch. 1 - What is twinning? How does it differ from slip?Ch. 1 - Prob. 21QLPCh. 1 - What is the significance of the fact that some...Ch. 1 - Is it possible for two pieces of the same metal to...Ch. 1 - Prob. 24QLPCh. 1 - A cold-worked piece of metal has been...Ch. 1 - What materials and structures can you think of...Ch. 1 - Two parts have been made of the same material, but...Ch. 1 - Do you think it might be important to know whether...Ch. 1 - Explain why the strength of a polycrystalline...Ch. 1 - Describe the technique you would use to reduce the...Ch. 1 - What is the significance of the fact that such...Ch. 1 - Prob. 32QLPCh. 1 - It has been noted that the more a metal has been...Ch. 1 - Is it possible to cold work a metal at...Ch. 1 - Comment on your observations regarding Fig. 1.14.Ch. 1 - Is it possible for a metal to be completely...Ch. 1 - Prob. 37QTPCh. 1 - Prob. 38QTPCh. 1 - Plot the data given in Table 1.1 in terms of...Ch. 1 - A strip of metal is reduced from 30 mm in...Ch. 1 - Prob. 41QTPCh. 1 - How many grains are there on the surface of the...Ch. 1 - Prob. 43QTPCh. 1 - Prob. 44QTPCh. 1 - Prob. 45QTPCh. 1 - A technician determines that the grain size of a...Ch. 1 - If the diameter of the aluminum atom is 0.28 nm,...Ch. 1 - The following data are obtained in tension tests...Ch. 1 - Prob. 50QTPCh. 1 - Prob. 51QTPCh. 1 - Prob. 52QTPCh. 1 - Same as Prob. 1.39, but ASTM no. versus...Ch. 1 - By stretching a thin strip of polished metal, as...Ch. 1 - Draw some analogies to mechanical fiberingfor...Ch. 1 - Draw some analogies to the phenomenon of hot...Ch. 1 - Take a deck of playing cards, place a rubber band...Ch. 1 - Give examples in which anisotropy is scale...Ch. 1 - The movement of an edge dislocation was described...
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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
- Consider the tensile stress strain curves in Figure 8-20 labeled 1 and 2 and answer the following questions. These curves are typical of metals. Consider each part as a separate question that has no relationship to previous parts of the question. (a) Which material has the larger work hardening exponent? How do you know? (b) Samples 1 and 2 are identical except that they were tested at different strain rates. Which sample was tested at the higher strain rate? How do you know? (c) Assume that the two stress strain curves represent successive tests of the same sample. The sample was loaded, then unloaded before necking began, and then the sample was reloaded. Which sample represents the first test: 1 or 2? Haw do you know?arrow_forwardThe uniaxial stress-strain diagram of a typical material can be approximated as the following? Can you expect Kinematic Hardening behaviour of this material? Give reason for your answer. Stress Strain 3.arrow_forwardDescribe the behavior of materials under shear stress?arrow_forward
- In what class of material is stress whitening often seen, and what is the physical origin of the phenomenon?arrow_forward1. Explain in 1-3 bullets how as a practicing engineer you determine the yield strength of a metal from a tensile stress-strain curve. 2. Explain what is happening at the yield strength for a metal from a physical standpoint in 1-3 bullets. (e.g. what are the atoms doing?)arrow_forwardThe basics of strain hardening should be explained. Is this method still effective at high temperatures? explainarrow_forward
- As a materials engineer in a metal-processing company, you are given a section of metal to heat treat after cold working. You are also able to view the microstructure of the metal before and after heat treatment and characterise its mechanical properties. Which of the following describes what you expect to find, when comparing the properties of the metal after heat treatment to before? Select one or more: a. Increased strength b. Reduced strength □ C. Increased ductility d. Reduced ductilityarrow_forward(a) What would happen to the wire if it were stretched beyond its elastic limit? What would happen to the graph of stress as a function of strain if the wire were stretched beyond its elastic limit?arrow_forwardIf you have a material that is initially hard and strong, would you expect it to cyclically harden or soften? What would be a way of characterizing how strong it must be initially to make your answer a bit more quantitative?arrow_forward
- Explain what the meaning of strain hardening is, how it happens in the materials. Do you think strain hardening is useful? Explain your answerarrow_forwardAnalyse effects of cold work and Annealing in term of change in microstructure and mechanical properties.arrow_forwardDiscuss the factors influencing the ductile-to-brittle transition in materials?arrow_forward
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