Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 6, Problem 8RQ
What it the composition of (a) babbitts, (b) pewter, and (c) sterling silver?
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Which of the following describes the crystal structure of steel?
Group of answer choices
Steel is a iron-carbon alloy with carbon creating a vacancy crystal defect resulting in decreased hardness compared to pure iron.
Steel is a iron-carbon alloy with carbon as an substitutional crystal defect resulting in decreased hardness compared to pure iron.
Steel is a iron-carbon alloy with carbon as an interstitial crystal defect resulting in decreased hardness compared to pure iron.
Steel is a iron-carbon alloy with carbon creating a vacancy crystal defect resulting in increased hardness compared to pure iron.
Steel is a iron-carbon alloy with carbon as an interstitial crystal defect resulting in increased hardness compared to pure iron.
Steel is a iron-carbon alloy with carbon as an substitutional crystal defect resulting in increased hardness compared to pure iron.
Which of the following statements regarding the cubic dense stacking (CW) of metals is incorrect?A. Stacking type is A-B-A-B….B. One octahedral space falls per atom.C. Two tetrahedral spaces per atom.D. CSI's unit cell is YMK.E. The coordination number of metal is 12.
When answering the following questions, ensure that you explain in terms of both the microscopic and macroscopic structure of the materials. A) Metallic- explain the differences in terms of structure for both low carbon and high carbon steels, also explaining how the structure and carbon content impacts properties of the steel. B) Ceramic - state the structure of a PZT based piezoelectric ceramic material , explain how this can be made piezoelectric and the key properties and changes that can occur.
Chapter 6 Solutions
Manufacturing Engineering & Technology
Ch. 6 - Given the abundance of aluminum in the Earths...Ch. 6 - Prob. 2RQCh. 6 - What are the major uses of copper? What arc the...Ch. 6 - What are superalloys? Why are they so named?Ch. 6 - What properties of titanium make it attractive for...Ch. 6 - Which properties of each of the major refractory...Ch. 6 - Prob. 7RQCh. 6 - What it the composition of (a) babbitts, (b)...Ch. 6 - Name the materials described in this chapter that...Ch. 6 - What are the major uses of gold and silver, other...
Ch. 6 - Describe the advantages to using zinc as a coating...Ch. 6 - Prob. 12RQCh. 6 - Why are aircraft fuselages made of aluminum...Ch. 6 - How is metal foam produced?Ch. 6 - What metals have the lowest melting points? What...Ch. 6 - Explain why cooking utensils generally are made of...Ch. 6 - Would it be advantageous to plot the data in Table...Ch. 6 - Compare the contents of Table 6.3 with those in...Ch. 6 - What factors other than mechanical strength should...Ch. 6 - Prob. 20QLPCh. 6 - If aircraft, such as a Boeing 757, are made of 79%...Ch. 6 - Prob. 22QLPCh. 6 - Most household wiring is made of copper wire. By...Ch. 6 - The example in this chapter showed the benefits of...Ch. 6 - If tungsten is the highest melting-point metal,...Ch. 6 - A simply supported rectangular beam is 25 mm wide...Ch. 6 - Obtain a few aluminum beverage cans, cut them, and...Ch. 6 - Beverage cans usually are stacked on top of each...Ch. 6 - Using strength and density data, determine the...Ch. 6 - Plot the following for the materials described in...Ch. 6 - Prob. 33SDPCh. 6 - Give some applications for (a) amorphous metals,...Ch. 6 - Describe the advantages of making products with...Ch. 6 - In the text, magnesium was described as the...Ch. 6 - Prob. 38SDPCh. 6 - Review the technical literature, and write a...
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- NOTE: ANSWER ALL QUISTIONS Q1) Answer the following questions. (C..v. 1- Explain the selection of engineering materials for applications depend on which properties. 2- Why the nanomaterials have outstanding mechanical and physical properties? 3- Draw and explain the differences between crystalline and non-crystalline solids. 4- Draw and explain bond type of NaCl compound atoms. 5- Why the crystalline material is favourite than non-crystalline materials?arrow_forwardWhat are Ductile materials?arrow_forwardgive their properties and composition of stainless steel pewterarrow_forward
- Determine whether the first part of statement will INCREASE, DECREASE or have NO EFFECT in the second part of the statement. If there is an increase in temperature then the number of vacancies will _______. If there is an increase in atomic packing factor then the density will _______. If there is a decrease in cooling rate then the degree of crystallinity will _______.arrow_forward14- With regard to imperfections in solid metals, which of the following information is/are true? I- Motion of dislocations through grain boundaries requires extra energy. Il-Existence of impurity atoms in solid metal (alloying) would increase its electrical conductivity. III- Yield strength of a metal increases as the grain size decreases. A- Only I. B- Only II. C- Only III. D- I and III. E- H and II.arrow_forwardfrom below data , draw the TTT diagram , then describe the name the final structure of alloy steel ? 1- Rapid cooling from (775 C ) to room temperature at 0.5 sec. 2- Rapid cooling from (775 C ) to (400 C ) ,then hold (100 sec) , then cooled to room temperature .arrow_forward
- A cylindrical rod having a diameter of 10.0 mm is to be deformed using a tensile load of 20,500 N. It must not experience either plastic deformation or a diameter reduction of more than 4 x 10-³mm. Referring to the materials listed below, which are/is possible candidates? Justify your choice(s). Material Magnesium alloy Brass alloy Steel alloy Modulus of Elasticity (GPa) Yield Strength (MPa) Poisson's Ration 200 0.35 0.34 0.30 45 101 207 300 400arrow_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_forwardClassify each material as a metal, polymer, ceramic or composite based on the properties listed. Brass – Electrically conductive, strong. Magnesium oxide – Electrical and thermal insulator, can resist high temperatures. Plexiglas – Light weight, electrical insulator, cannot withstand large loads. Polychloroprene – Low density, high ductility, not strong, electrical insulator. Boron carbide – High hardness, high stiffness, high toughness.arrow_forward
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