Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 5, Problem 32QLP
List the common impurities in steel. Which of these are the ones most likely to be minimized if the steel is melted in a vacuum furnace?
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I. HSLA steels are developed to replace gray irons
II. In normal atmospheres, HSLA steels are more resistant to corrosion than the plain carbon steels
III. HSLA steels are ductile, formable and machinable
Mark the false statement given above about HSLA (High Strength, Low Alloy) steels?
I. Martensitic stainless steels are capable of being heat treated
II. Austenitic Stainless Steels are the most corrosion resistant because of the high chromium contents
III. Ferritic Stainless Steels are hardened and strengthened by cold work
Which statement(s) is/are true given above about stainless steels?
Which of the following is a method for strengthening metals and alloys:
a. solution hardening
b. full annealing
c. work hardening
d. incomplete casting
e. cold working
f. quenching
g. incomplete fusion
Chapter 5 Solutions
Manufacturing Engineering & Technology
Ch. 5 - What are the major categories of ferrous alloys?Ch. 5 - Prob. 2RQCh. 5 - List the basic raw materials used in making iron...Ch. 5 - List the types of furnaces commonly used in...Ch. 5 - List and explain the characteristics of the types...Ch. 5 - Prob. 6RQCh. 5 - What is continuous casting? What advantages does...Ch. 5 - What is the role of a tundish in continuous...Ch. 5 - Prob. 9RQCh. 5 - What are trace elements?
Ch. 5 - What are the percentage carbon contents of...Ch. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - Prob. 15RQCh. 5 - What is high-speed steel?Ch. 5 - Prob. 17RQCh. 5 - Prob. 18RQCh. 5 - Prob. 19RQCh. 5 - What effect does carbon content have on mechanical...Ch. 5 - Identify several different products that are made...Ch. 5 - Professional cooks generally- prefer carbon-steel...Ch. 5 - Prob. 23QLPCh. 5 - Explain why continuous casting has been such an...Ch. 5 - Describe applications in which you would not want...Ch. 5 - Explain what would happen if the speed of the...Ch. 5 - The cost of mill products of metals increases with...Ch. 5 - Describe your observations regarding the...Ch. 5 - Prob. 29QLPCh. 5 - Prob. 30QLPCh. 5 - In Table 5.9, D2 steel is listed as a more common...Ch. 5 - List the common impurities in steel. Which of...Ch. 5 - Explain the purpose of the oil shown at the top...Ch. 5 - Recent research has identified mold-surface...Ch. 5 - Prob. 35QLPCh. 5 - List and explain the advantages and disadvantages...Ch. 5 - Conduct an Internet search and determine the...Ch. 5 - Refer to the available literature, and estimate...Ch. 5 - Some soft drinks are now available in steel cans...Ch. 5 - Using strength and density data, determine the...Ch. 5 - The endurance limit (fatigue life) of steel is...Ch. 5 - Using the data given in Table 5.4, obtain the...Ch. 5 - Based on the information given in Section 5.5.1,...Ch. 5 - Assume that you are in charge of public relations...Ch. 5 - Assume that you are in competition with the steel...Ch. 5 - In the past, waterfowl hunters used lead shot in...Ch. 5 - Aluminum is being used as a substitute material...Ch. 5 - In the 1940s (the Second World War), the Yamato...Ch. 5 - Search the technical literature, and add more...Ch. 5 - Referring to Fig. 5.4a, note that the mold has...
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- How do ferrite and cementite work together to form a strong ductile steel?arrow_forwardAfter hardening, steel is very hard and brittle. What operation is usually performed to reduce hardness and increase toughness so the steel is in a more usable condition?arrow_forwardDirect hardening can be performed on steel containing at least________ carbon.arrow_forward
- Answer with true (T) or false (F), corrects the wrong phrases, and gives short reason(s) for correct and corrected statements: 1- Normalized steels have better strength and toughness as compared to annealed steels. 2- Ferrous alloys are most important and widely used in comparison to any other metals. 3- Metals of BCC crystal structure are denser than metals of FCC structure. 4- Hypo-eutectoid steels fully annealed by heating to about 30°C above the upper critical temperature. X A3 5- The full martensite microstructure can be obtained by cooling the steels with any cooling rate. 6- There is a large volume expansion when martensite forms from austenite.,arrow_forwardAnswer with true (T) or false (F), corrects the wrong phrases, and gives short reason(s) for correct and corrected statements: 1- Normalized steels have better strength and toughness as compared to annealed steels. 2- Ferrous alloys are most important and widely used in comparison to any other metals. 3- Metals of BCC crystal structure are denser than metals of FCC structure. 4- Hypo-eutectoid steels fully annealed by heating to about 30°C above the upper critical temperature. 5- The full martensite microstructure can be obtained by cooling the steels with any cooling rate. 6- There is a large volume expansion when martensite forms from austenite.arrow_forwardAnswer with true (T) or false (F), corrects the wrong phrases, and gives short reason(s) for correct and corrected statements: 1- Normalized steels have better strength and toughness as compared to annealed steels. 2- Ferrous alloys are most important and widely used in comparison to any other metals. 3- Metals of BCC crystal structure are denser than metals of FCC structure. 4- Hypo-eutectoid steels fully annealed by heating to about 30°C above the upper critical temperature.X A3 5- The full martensite microstructure can be obtained by cooling the steels with any cooling rate. 6- There is a large volume expansion when martensite forms from austenite.,arrow_forward
- 2. Which property of this steel is significant to the failure analysis? The steel can Options: a. form carbides that strength it b. be heat treated in order to improve its strength. c. be strain-hardened.arrow_forwardfor four different metals: 2014-T6 aluminum, 6061-T6 aluminum, structural A-36 steel, and 304 stainless steel. highlight differences (for example, you can rank them on things like strength, stiffness, ductility, etc.).arrow_forwardAn engineer is making determinations on the best alloy of steel to use in cables for a cable-stayed bridge. The investigator’s tool is a tensile testing instrument which can measure the strength of the alloys by slowly increasing the load on the cable to the point where the cable breaks and breaking point value (amount of weight on the cable when it fails) can be accurately measured. The investigator also is interested in determining the amount of deformation of the cable (how much it stretches under load conditions which is also very important in structural considerations. The tests must be uniform and consistent to give the precision needed to make valid conclusions about the best alloy for the cables. On the line after the item, identify which type of variable it represents from (a) independent variable, (b) dependent variable, (c) control variable. 1) thickness of the cable _____________ 5) length of the cable _____________ 2) testing room temperature…arrow_forward
- Provide a general description of Induction Furnaces used in Industrial Manufacturing of Steelarrow_forwardWhich of the following statements are true for metals undergoing heat treating and cold working processes: (More than one statement could be true) O An increase in ductility correlates with an increase in yield strength. A decrease in ductility correlates with a decrease in yield strength. An increase in ductility correlates with a decrease in yield strength. A decrease in ductility correlates with an increase in yield strength.arrow_forwardTempering is a heat treatment applied to hardened steels that is best defined as which of the following (one correct answer): O heating and soaking at a temperature above the austenitizing level followed by rapid cooling O heating and soaking at a temperature above the austenitizing level followed by slow cooling O heating and soaking at a temperature below the austenitizing level followed by rapid cooling O heating and soaking at a temperature below the austenitizing level followed by slow coolingarrow_forward
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