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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Chapter 3, Problem 43RQ
What is required in order to drive the recrystallization of a cold worked or deformed material?
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Chapter 3 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 3 - What enables us to control the properties and...Ch. 3 - Â What are the next levels of structure that are...Ch. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQCh. 3 - What are the three types of primary bonds, and...Ch. 3 - What are some general characteristics of...Ch. 3 - Prob. 9RQCh. 3 - Prob. 10RQ
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Prob. 13RQCh. 3 - What are some unique property features of...Ch. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - Prob. 17RQCh. 3 - What are some of the general characteristics of...Ch. 3 - Prob. 19RQCh. 3 - Prob. 20RQCh. 3 - Prob. 21RQCh. 3 - Prob. 22RQCh. 3 - Prob. 23RQCh. 3 - Prob. 24RQCh. 3 - What is a grain? A grain boundary?Ch. 3 - Prob. 26RQCh. 3 - What is implied by a low ASTM grain�size number?...Ch. 3 - Prob. 28RQCh. 3 - What is Poissons ratio, and under what conditions...Ch. 3 - What is plastic deformation?Ch. 3 - Why do metals retain their strength during plastic...Ch. 3 - Prob. 32RQCh. 3 - Prob. 33RQCh. 3 - What is a dislocation? Using the carpet analogy,...Ch. 3 - What is the difference between an edge dislocation...Ch. 3 - What are some of the common barriers to...Ch. 3 - Prob. 37RQCh. 3 - What is the mechanism (or mechanisms) responsible...Ch. 3 - Why is a fine grain size often desired in an...Ch. 3 - What is an anisotropic property? Why might...Ch. 3 - What is the difference between brittle fracture...Ch. 3 - How does a metal increase its internal energy...Ch. 3 - What is required in order to drive the...Ch. 3 - How might the lowest recrystallization temperature...Ch. 3 - In what ways can recrystallization be used to...Ch. 3 - What is the major distinguishing feature between...Ch. 3 - What is warm working?Ch. 3 - How can deformation and recrystallization improve...Ch. 3 - Why is grain growth usually undesirable?Ch. 3 - Prob. 50RQCh. 3 - As a result of their ionic or covalent bonding,...Ch. 3 - Prob. 52RQCh. 3 - Prob. 53RQCh. 3 - What is the difference between an intrinsic...Ch. 3 - What is required for electrical conductivity in...Ch. 3 - What is required for electrical conductivity in...Ch. 3 - Brass is an alloy of copper with a certain amount...Ch. 3 - It is not uncommon for processing operations to...Ch. 3 - Polyethylene consists of fibrous molecules of...Ch. 3 - Prob. 5P
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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
- Regarding annealing, choose the right answer (One or more): The actual annealing time must be long enough to allow for any necessary transformation reactions that may occur Annealing can be performed to release internal stresses of the material The main purpose of annealing is to decrease or restore material's ductility Time isn't a significant parameter in annealing process If the rate of temperature change is too great, temperature gradients and internal stresses may be induced that may lead to warping or even crackingarrow_forwardWhat is the effect of strain hardening on the material?arrow_forwardDuring the recrystallization of a cold-worked material, which of the following statement(s) is (are) true? O There is some reduction in the number of dislocations. O Some of the internal strain energy is relieved. O The metal becomes more ductile, as in its precold-worked state. O Grains with high strains are replaced with new, unstrained grains. O There is a significant reduction in the number of dislocations, to approximately the number found in the precold-worked state, O The thermal conductivity is recovered to its precold-worked state. O All of the internal strain energy is relieved. O The electrical conductivity is recovered to its precold-worked state.arrow_forward
- 1 You want to produce a Brass plate that is 0.25" thick with a yield stress 50 ksi which corresponds to 37.5% cold work. The initial plate thickness is 1.0". The maximum cold work per step is 60%. What are the cold work and annealing steps that are necessary to achieve the desired result?arrow_forwardSubcritical annealing can be done at higher temperature than full annealing. Select one: True Falsearrow_forwardAdvanced Physicswhat are the real life applications of cold working and annealing?arrow_forward
- 1-illustrate the process which work above recrystallization temperature with neat sketch?arrow_forwardWhat is the advantage of nitriding? Select all correct answers. Some complex components can be nitride without difficulty. Better wear resistance. Better fatigue resistance. The cheapest method of case hardening. What is the correct definition of plastic deformation? The behavior of a material when its size changes by the addition of heat. The behavior of a material that deforms under load and returns to its original shape when the load is removed. Deformation caused by cleavage, where the material is actually pulled apart across atomic planes within the crystals or along the grain boundaries. The behavior of a material that deforms under load and does not fully return to its original shape when the load is removed.arrow_forwardWhat physical reasons why reducing grain size is an effective alternative for increasing the strength of a metal?arrow_forward
- Q3 contd. (d) The yield strength values of pure aluminium (Al) and pure copper (Cu) are 25 MPa and 20 MPa, respectively; whereas the yield strength values of cold rolled Al-Mn-Mg alloy and cast 60-40 Brass (60% Cu, 40% Zn) are 200 MPa and 105 MPa, respectively. With aid of schematics, explain the main mechanisms account for the increases in the strengths. (e) A cylindrical tie rod with a diameter of 18.4 mm is subjected to cyclic loading. The stress range is +/- 200 kN. Figure Q3.3 shows the S-N curve of the material of which the rod is made, how many cycles will this rod survive? Stress amplitude O₂ (MPa) 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 10² 10³ 104 4340 low-alloy steel Stress ratio = -1 Fig. Q3.3 105 106 Number of cycles to failure, Nf 107 108arrow_forward(v) The two sketches below represent the microstructure of two specimens with identical average composition but subjected to different annealing treatments. a A is stronger and more ductile than B, b. B is stronger and more ductile than A, A is stronger but more brittle than B, B is stronger but more brittle than A, e. none of the above. c. d. A Barrow_forwardQuestions to Consider: 1- What are the drawbacks of the parallel lines method? 2- What is the effect of heat treatment on the average grain size? And what is the influence of the grain size on the mechanical properties of materials 3- Mention another procedure that the inspector can use to determine the average grain size?arrow_forward
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