Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 5, Problem 23QLP
To determine
Why is the control of the structure of an ingot important?
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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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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
- 1- Examine carefully the microstructure of the specimens? 2- Draw nearly the microstructure with Mag x 150. 3- Define the phases.arrow_forward2) The region showing planar growth during solidification near the fusion zone boundary will exhibit O High temperature gradient and high growth rate High temperature gradient and low growth rate Low temperature gradient and high growth rate O Low temperature gradient and low growth ratearrow_forward8c. describe the extration of elemental composition; s from solid sample. Explain what major concern of the extration is and list two of the methods that can solve the problem?arrow_forward
- a) If a nucleus forms with a radius less than critical radius for nucleation, it will disappear. Explain why?b) Explain the free energy diagram; explain how the total free energy of the solid-liquid system changeswith the size of the solid.arrow_forwardExplain the concept of zone refining and also explain the refining technique for germanium ingot.arrow_forwardIs this a austenite microstructure if so how can you tellarrow_forward
- Question-6. For solidification of a piece of FCC-metal at 860 °C. The melting point of the metal is 1260 °C. The latent heat of fusion and surface free energy are -2.16 x108 J/m³ and 0.126 J/m², respectively. If nucleation is homogeneous, answer the following questions: (a) Compute the critical radius r* in nm (b) Compute the activation free energy AG* in J (c) If the lattice parameter is 0.26 nm at the melting temperature, compute the number of atoms found in a nucleus of critical size (d) Compute the critical radius at the supercooling degree of 260 K.arrow_forward6. Figure shows the cooling curve for aNiO-MgO ceramic. (f) the local solidification time; 2800 2700 2600 2525 2500 28 2400 10 20 30 40 50 Time (min) Temperature (°C)arrow_forwardQ1/ In a homogeneous solidification process, assume molten metal solidifies into a spherical nucleus with a BCC structure. The given data are; lattice parameter (0.292 nm), the heat of fusion energy (1.85×10-9 J/m³), latent surface free energy (0.204 J/m²), critical radius (1-35 nm), equilibrium melting temperature (1516 K), and room temperature (27 °C). Calculate the following for this metal; (a) supercooling value temperature (b) activation tree energy (c) number of atoms in a nucleus of critical size.arrow_forward
- The nucleation rate for a phase transformation depends on which factors? Density O Yield Strength O Undercooling (Temperature Energy) O Diffusivity of atoms O Holding time above Temperaturearrow_forwardChoose Ane correct angmer The term allotropy is normally reserved for this behavior in pure elements /compounds, 7) while the term polymorphism is used for elements /compounds. 8) As the extent of undercooling decreases/ increases, the thermodynamic driving force for the formation of a solid phase from the liquid is decreased/ increased.arrow_forwardHow much time in seconds is required for austenite to transform to 50% pearlite at 600°C?arrow_forward
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