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 3P
It is not uncommon for processing operations to expose manufactured products to extreme elevated temperatures. Zinc coatings can be applied to steel by immersion into a bath of molten zinc (hot�dip galvanizing). Welding actually melts and resolidifies the crystalline metals. Brazing deposits molten filler metal. How might each of the following materials and their properties be altered by an exposure to elevated temperature?
- A recrystallized polycrystalline metal
- A cold�worked metal
- A solid�solution alloy, such as brass where zinc atoms are dissolved and dispersed throughout copper
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They are characteristics of a solid solutionChoose an option
A) It has limited solubilityB) It is an example of a substitutional alloyC) The difference between the atomic radii of the elements must be less than 15%D) It has unlimited solubilityE) May have limited or unlimited solubilityF) The electronegativity difference between its elements must be 0.3G) It is composed of a solvent and a solute, being the solute the one that is in greater quantityH) The crystalline structure of its elements must be the sameI) No new structures or intermetallic compounds are formedJ) It can be formed with elements of different crystalline structure
True/False
1. ____ Metals have long and thin bubbles in Strength-Modulus Chart because the processes used to manipulate their properties have almost no effect on the modulus but have a dramatic effect on strength.
2. ____ Cross-linking, blending and filling of polymers with particulates or fibers do not change their modulus or strength.
3. ____ The strength of ceramics depends on porosity, generally the higher the porosity, the higher the strength.
4. ____ Three basic ways to manipulate the mechanical properties of metals are: solution hardening, precipitation hardening, and work hardening.
5. ____ Foaming reduces density of metals, ceramics, and polymers but does not affect modulus.
True/False
1. ____ Metals have long and thin bubbles in Strength-Modulus Chart because the processes used to manipulate their properties have almost no effect on the modulus but have a dramatic effect on strength.
2. ____ Cross-linking, blending and filling of polymers with particulates or fibers do not change their modulus or strength.
3. ____ The strength of ceramics depends on porosity, generally the higher the porosity, the higher the strength.
4. ____ Three basic ways to manipulate the mechanical properties of metals are: solution hardening, precipitation hardening, and work hardening.
5. ____ Foaming reduces density of metals, ceramics, and polymers but does not affect modulus.
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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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