1.
Problem 9.17 Important! The answer in the back of the book is wrong! (p.300)
(Objective 3.4)
Calculate the amount of each phase present in 1 kg of a 50 wt % Ni-50 wt % Cu alloy
at (a) 1400oC (b) 1300oC, and (c) 1200oC
Well be working with equations 9.9

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Cracks that easily propagate by splitting atomic planes are often thwarted at
grain boundaries. Which material, that of Figure 4.18 or 4.20, is likely to resist
fatigue failure better? Why? (Objective 1.9)
While Figure 4.18 would appear to have larger g

Discuss the history and mechanisms of x-ray scattering, answering in your discussion such
questions as who first worked out the process, and what material lattice was first described,
and in what year?
During the span of 1913 and 1914, William Bragg and h

A lot of material properties are intuitive to us through our experience. But if we analyze the atomic
structure, we can explain a lot of their differences surprisingly well. Specifically, (a) why do ceramics and
glasses tend to be more brittle than metals

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2.
Draw the lattice direction 101 in a cubic unit cell. [MO1.6] (Objective 1.6)
Draw the plane in a cubic unit cell with Miller Indices 101. (Objective 1.6)
Problem 4.1, p.124 (Figure 9.27 will make sense later; but for now, because it
doesnt look l

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Problem 8.19, p. 255. (Objective 2.10)
Calculate the breaking stress for a rod of ABS with a surface flaw size of 100 mm
Well treat this in the realm of general fracture mechanics, so:
of = KIc/sqrt (pi)a by way of Example 8.3
KIc of 4 MPa, so 4MPa(sqr

Discuss tempering of steel. Describe what the process is, what is happening on the atomic
level, and why manufacturers would do such a thing. Give examples for situations when you
would want to utilize tempered steel, but also give examples where tempered

1.
Problem 5.17 (p.150) (Objectives 3.1, 3.2)
Using data in Table 5.2, calculate the self-diffusivity for iron in bcc at 900 oc
Iron:
Solvent: bcc iron
Do(m2/s): 200 x 10-6
Q (kJ/mol): 240
Q (kcal/mol): 57.5
Lets use Equation 5.13: D = D0e-Q/RT
Plugging i

1.
Problem 7.1, p. 225. (Objective 2.8)
Estimate the amount of heat (in J) required to raise 2 kg of (a) a-iron, (b) Graphite,
and (C) Polypropylene from room temperature (25 oC) to 100oC
Well use the specific heat formula here: c =q/m(delta)T
a-Iron:
444

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Problem 2.1, p.53 (Objective 1.4)
A gold o-ring is used to form a gastight seal in a high vacuum chamber. The ring is formed from an 80-mm
length of 1.5-mm diameter wire. Calculate the number of gold atoms in the o-ring.
Density of Gold: 19.28 g/cm3
AM

3.
Calculate the APF for (a) the simple cubic and (b) body centered cubic lattices as volume of
atoms/volume of cell. (c) Which structure is more dense given atoms of equal mass? The edge
length for simple cubic is 2r. Remember that each corner atom is sh

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Problem 6.1, p. 205. (Objectives 2.3, 2.4)
The following three o-e data points are provided for a titanium alloy for aerospace
applications. e = 0.002778 (at o = 300 MPa), 0.005556 (600 MPa), and 0.009897
(900 MPa). Calculate E for this alloy.
Well use