Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 1, Problem 37QTP
To determine
How many atoms are there in a single repeating cell of an FCC crystal structure? How many in a repeating cell of an HCP structure?
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Chapter 1 Solutions
Manufacturing Engineering & Technology
Ch. 1 - What is the difference between an atom and a...Ch. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Define anisotropy. What is its significance?Ch. 1 - What effects does recrystallization have on the...Ch. 1 - What is strain hardening, and what effects does it...Ch. 1 - Explain what is meant by structure-sensitive and...Ch. 1 - Prob. 9RQCh. 1 - What influence does grain size have on the...
Ch. 1 - What is the relationship between the nucleation...Ch. 1 - What is a slip system, and what is its...Ch. 1 - Explain the difference between recovery and...Ch. 1 - What is hot shortness, and what is its...Ch. 1 - Explain the advantages and limitations of cold,...Ch. 1 - Describe what the orange peel effect is. Explain...Ch. 1 - Some metals, such as lead, do not become stronger...Ch. 1 - Describe the difference between preferred...Ch. 1 - Differentiate between stress relaxation and stress...Ch. 1 - What is twinning? How does it differ from slip?Ch. 1 - Prob. 21QLPCh. 1 - What is the significance of the fact that some...Ch. 1 - Is it possible for two pieces of the same metal to...Ch. 1 - Prob. 24QLPCh. 1 - A cold-worked piece of metal has been...Ch. 1 - What materials and structures can you think of...Ch. 1 - Two parts have been made of the same material, but...Ch. 1 - Do you think it might be important to know whether...Ch. 1 - Explain why the strength of a polycrystalline...Ch. 1 - Describe the technique you would use to reduce the...Ch. 1 - What is the significance of the fact that such...Ch. 1 - Prob. 32QLPCh. 1 - It has been noted that the more a metal has been...Ch. 1 - Is it possible to cold work a metal at...Ch. 1 - Comment on your observations regarding Fig. 1.14.Ch. 1 - Is it possible for a metal to be completely...Ch. 1 - Prob. 37QTPCh. 1 - Prob. 38QTPCh. 1 - Plot the data given in Table 1.1 in terms of...Ch. 1 - A strip of metal is reduced from 30 mm in...Ch. 1 - Prob. 41QTPCh. 1 - How many grains are there on the surface of the...Ch. 1 - Prob. 43QTPCh. 1 - Prob. 44QTPCh. 1 - Prob. 45QTPCh. 1 - A technician determines that the grain size of a...Ch. 1 - If the diameter of the aluminum atom is 0.28 nm,...Ch. 1 - The following data are obtained in tension tests...Ch. 1 - Prob. 50QTPCh. 1 - Prob. 51QTPCh. 1 - Prob. 52QTPCh. 1 - Same as Prob. 1.39, but ASTM no. versus...Ch. 1 - By stretching a thin strip of polished metal, as...Ch. 1 - Draw some analogies to mechanical fiberingfor...Ch. 1 - Draw some analogies to the phenomenon of hot...Ch. 1 - Take a deck of playing cards, place a rubber band...Ch. 1 - Give examples in which anisotropy is scale...Ch. 1 - The movement of an edge dislocation was described...
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- 1. Is there a difference in packing (coordination number) between these two types (FCC and HCP) of structures? 2. Look at the two structures. A small difference in arrangement of atoms causes a dramatic difference in the properties of FCC ductile metals and HCP brittle metals. Can you see it? Try to draw the differences (You can draw the 3-layers separately):arrow_forward3. Beryllium (Be) is an HCP structure with a=0.22858 nm and c=0.35842 nm. The atomic radius is 0.1143 nm, the density is 1.848 g/cm3, and the atomic mass is 9.01 g/mol. In this case, find (a) the number of atoms in the single crystal and (b) the atomic filling rate of the unit crystal.arrow_forwardDetermine the Miller Indices of Direction C and D in an HCP crystal.arrow_forward
- 1) For the HCP crystal structure, show that the ideal c/a ratio is 1.633arrow_forwardWhat are the indices for the direction represented by the vector that has been drawn within a unit cell?arrow_forwarda) What is atomic packing factor? What is the effect of the atomic packing factor on material's properties, Calculate the atomic packing factor of SC, FCC, BCC and HC and give some metal elements as examples for each crystal structure b) Which crystal planes and directions are most favourable for slip in materials having FCC structurearrow_forward
- 15. Zirconium has an HCP crystal structure and a density of 6.51 g/cm3 and an atomic weight of 91.22g/mol. What is a in nm? what is c in nm?arrow_forward1. Show that the atomic packing factor for HCP is 0.74.2. Calculate the radius of Palladium atom given that PD has an FCC crystal structure, a density of 12.0 g/cm3, and an atomic weight of 106.4 g/mol.arrow_forwardConsider the ReO3 unit cell shown below, with a = 3.74 Å and ∆ Hsub = 626 kj/mol (a) What is the Bravais lattice and smallest atomic basis that describes ReO3? Write the coordinates of each atom in the basis. (b) What is the coordination and bonding geometry for the Re and O atom?arrow_forward
- If a single crystal material has a Young's Modulus of 100 MPa in the [100] direction, and a Young's Modulus of 150 MPa in the [010] direction, why is the polycrystalline (i.e., many crystal) form of the material isotropic?arrow_forwardThe crystalline density of polypropyleneis 0.946 g>cm3, and its amorphous densityis 0.855 g>cm3. What is the weight percentof the structure that is crystalline ina polypropylene that has a density of0.9 g>cm3?arrow_forwardWhat's the translation of this crystal structure?arrow_forward
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