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 39RQ
Why is a fine grain size often desired in an engineering metal?
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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
- Questions 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_forwardStrength of a metal can be measured by the internal resistance or stress that it can withstand. Using a simple sketch, illustrate the loading of compressive stress and tensile stress on a metallic sample.arrow_forwardDiscuss the following mechanical properties of grains: Elasticity Hardness Strength Other propertiesarrow_forward
- During 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_forwardHOME WORK 1 The figure shows two work pieces of steel of 0.3 %C and 1.3 %C with different dimensions. compare between them regarding the diagram that shows the stages of softening annealing treatments. a + P p+ Fe,C 1 Dimensions of (1*1*1) inch Dimensions of (2*2*2) inch Metallurgy | Dr. Bassim Sh. Bachy.arrow_forwardIn hot working of metals, the distorted grains are completely removed and fresh new grains are formed. Select one: True Falsearrow_forward
- Discuss the relationship between the grain size and hardnessarrow_forwardsummarize the way in which fine_grain microstructures behave with regard to low temperature and room temperature strength and toughnesd.why not make all metals as small_grained as possible?arrow_forwardIn which one of the following cases would the presence of defects be absolutely detrimental to the desired material properties? Select one: O a. Antiphase boundaries in a jet engine turbine blade. O b. Grain boundaries in a jet engine turbine blade. Oc. Boron impurities in an NPN silicon transistor base. Od. Oxygen vacancies in yittria-stabilised zirconia solid oxide fuel cell. Oe. Magnesium impurities in aluminium. You hot-roll a mild steel plate to obtain an average grain size of 25 micrometres. The single-crystal yield strength of mild steel is 70MPa, and the strengthening coefficient, k, is 0.74 MPa m 12. What is the yield strength of the rolled steel plate in mega-Pascals (MPa)? Answer:arrow_forward
- Explain the hot working of metals related to the grain structure diagrams.arrow_forwardWhich method do we use to monitor dislocation movements in tensile testing? How monitoring is done in this method, explain the working mechanism of the system in detail.arrow_forwardMetal y (mJ/m)n Slip Character (a) Discuss why Planar slip is associated with a small stacking fault energy, as shown in the table below. (b) Sketch the shape of a single-crystal shear stress-strain curve for Al and Stainless Steel, (1label) stage I, II and III portions of deformation, which one end stage II and begin stage III sooner?. S.Steel <10 -0.45 Planar Cu -90 -0.3 Planar/ wayy Al -250 -0.15 wayyarrow_forward
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