Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 4, Problem 41SDP
Inspect various parts in your car or home, and identify those that are likely to have been case hardened. Explain your reasons.
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What exactly is stress testing, and how does it help?
Given your understanding of what initiates and controls failure in materials, which of the following will increase the failure strength or lifetime
of a test piece or component and why?
a. Polishing to reduce surface defects
b. Decreasing the temperature below the brittle-ductile transition temperature, to make it harder
C. Increasing its volume, to give a larger cross sectional area
d. Increasing the grain size so there are less grain boundaries to initiate failure
e. Decreasing the difference between the maximum and minimum stress values, as this effects the stress concentration factor
What 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.
Chapter 4 Solutions
Manufacturing Engineering & Technology
Ch. 4 - Describe the difference between a solute and a...Ch. 4 - What is a solid solution?Ch. 4 - Prob. 3RQCh. 4 - Describe the difference between a single-phase and...Ch. 4 - What is an induction heater? What kind of part...Ch. 4 - Describe the major features of a phase diagram.Ch. 4 - What do the terms equilibrium and constitutional,...Ch. 4 - Prob. 8RQCh. 4 - What is tempering? Why is it performed?Ch. 4 - Explain what is meant by severity of quenching.
Ch. 4 - What are precipitates? Why are they significant in...Ch. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 - Prob. 14RQCh. 4 - Prob. 15RQCh. 4 - You may have seen some technical literature on...Ch. 4 - Prob. 17QLPCh. 4 - What is the difference between hardness and...Ch. 4 - Prob. 19QLPCh. 4 - Prob. 20QLPCh. 4 - Prob. 21QLPCh. 4 - Describe the characteristics of (a) an alloy, (b)...Ch. 4 - Explain why carbon, among all elements, is so...Ch. 4 - Prob. 24QLPCh. 4 - In Section 4.8.2, several fluids are listed in...Ch. 4 - Why is it important to know the characteristics of...Ch. 4 - Explain why, in the abscissa of Fig. 4.16c, the...Ch. 4 - Prob. 28QLPCh. 4 - Prob. 29QLPCh. 4 - Prob. 30QLPCh. 4 - Design a heat-treating cycle for carbon steel,...Ch. 4 - Using Fig. 4.4, estimate the following quantities...Ch. 4 - Prob. 33QTPCh. 4 - Prob. 34QTPCh. 4 - Prob. 35SDPCh. 4 - Figure 4.18b shows hardness distributions in...Ch. 4 - Throughout this chapter, you have seen specific...Ch. 4 - Refer to Fig. 4.24, and think of a variety of...Ch. 4 - Inspect various parts in your car or home, and...
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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
- What precisely is stress testing, and why is it advantageous to begin with?arrow_forward1. Describe tensile test in detail considering the steps. Define stress, strain (equations and units), elasticity modulus, elastic and plastic zones, toughness, and resilience of a material. Additionally, describe the difference between ductile and brittle material. Demonstrate a stress- strain curve to explain your answers.arrow_forwardDescribe the nature of the load and strength distributions in four practical engineering situations (use sketches to show the shapes and locations of distributions). Comment on each situation in relations to the predictability of failure and reliability, and in relation to the methods that can be used to reduce the probabilities of failure.arrow_forward
- A cylindrical rod 100 mm long and having a diameter of 10.0 mm is to be deformed using a tensile load of 27,500 N. It must not experience either plastic deformation or a diameter reduction of more than 7.5 x 10-³ mm. Of the materials listed as follows, which are possible candidates? Justify your choice(s). Material Aluminum alloy Brass alloy Steel alloy Titanium alloy Modulus of Elasticity (GPa) Yield Strength (MPa) Poisson's Ratio 70 101 207 107 200 300 400 650 0.33 0.34 0.30 0.34arrow_forwardComponents that suffered fatigue failure during operation can be identified byseveral characteristic features. In a few words, describe some of these features. Sketch orprovide an image of a component that has failed due to fatigue. Include labels on the imagedenoting the onset of crack propagation and hallmark features of fatigue failure.arrow_forwardgive an example proving that most materials exhibit both ductile andbrittle behavior?arrow_forward
- (one or more option can be true please select from below) which of the following will reduce the failure strength or lifetime of a test piece and why? Decreasing the grain size, more grain boundaries to initiate failure Raising the temperature above the BDTT, more plastic deformation in the lattice will cause it to fail faster Increasing its volume, greater likelihood of critical defects Decreasing the loading frequency, the material will be at peak stress values for longer Increasing the difference between the maximum and minimum stress values, as this affects the stress concentration factorarrow_forwardChoose the best , fast please.arrow_forwardWhat are the common types of strength measurements?arrow_forward
- What are motion screws? Where are motion screws used? Static of motion screws Explain how strength calculations are made under stresses.arrow_forwardAnswer it pls.arrow_forwardGiven your understanding of what initiates and controls failure in materials, which of the following will reduce the failure strength or lifetime of a test piece and why? a. (more than one answer is possible for this question. marks will only be awarded for the question if all the correct options are selected (i.e. 'all or nothing' marking scheme). b. LUS C. d. Increasing its volume, greater likelihood of critical defects Decreasing the loading frequency, the material will be at peak stress values for longer Decreasing the grain size, more grain boundaries to initiate failure Increasing the difference between the maximum and minimum stress values, as this affects the stress concentration factor Recent M Raising the temperature above the BDTT, more plastic deformation in the lattice will cause it to fail faster Garrow_forward
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