ENGR161 - ASSIGNMENTS -  FALL 2019
 Callister's Materials Science and Engineering, 9th ed.
The 9th edition is on reserve in the MESA Center, the STEM Center and the AHC Library Reserve.
CAUTION: SUBJECT TO CHANGE
STAPLE EACH ASSIGNMENT AS A SEPARATE PACKET.
While earlier editions may be used for study, problems will come from the 9th Ed.

 

This Page Updated: 11/21/19

Major Changes since 7/12/19:
• 11/21 --HW#10 due dates clarified.
• 11/17 --HW#9-12 due dates set;
                      PDF of phase diagrams posted.
• 11/02 --HW#9-12 problems set;
                      PDF of phase diagrams posted.
• 10/20 --HW#6 and 7 due dates set
• 10/10 --HW#5 due date "set" (keep it)
• 09/28 --HW#7 and 8 problems set
• 09/10 --HW#3 due dates correct/clarified
• 09/05 --HW#3 and 4 due dates set
• 08/29 --HW#2 due date set
• 08/23 --Revised HW Due Date
 ONLY USE S.I. UNITS (N, m, etc.).     DO NOT use U.S/English Units.
No.
Updated

Chapt.

Assignment (9th Edition)
* Asterisks indicate at note.
Due
8
9/28/19
8

   4, 7, 9, 20*, 22, 24, 30, 42

*Prob 20 Hint: for the rotating beam, the maximum bending stress is sigma = 16FL/(pi*d3)
KEEP
9
11/17/19
9

  2, 10a-d, 14, 17a-d, 21ab, 29a-d, 30, 39, 43
  Note: 9.10, 9.17 and 9.29 are linked problems

Phase diagrams (Word): Pb-Sn; Cu-Ag; Mb-Pb; Cu-Zn; Fe-C
Turn in at
Exam #3
10
11/21/19
9

57, 58, 59, 61, 62, 63, 72
  Note: For Prob. 61 and 62 take Temperature just below eutectoid for drawing the microstructure.

Phase diagrams (Word): Pb-Sn; Cu-Ag; Mb-Pb; Cu-Zn; Fe-C

Keep, but
do by Exam#3 to prep for it.
11
10/23/18
17
   1, 4, 7, 9, 22, 23

Keep
12
10/23/18
18
   1, 3, 7, 11, 15, 26, 43, 45, 49

Keep,
but do

Fall 2019: the below homework sets are from 2018. Please check back for updates.
-
-
10
   6, 8, 9, 14, 18, 19, 20, 21, 30, 34
Only turn in problems associated with the TTT curve

TBA
1
7/12/19
2

  1, 3, 6, 16, 18, 19*, 22(a), 26(a), 27  .pdf of 2019_HW#1_9th Ed.

 *Notes
  *Prob 2.19:  Use Microsoft EXCEL to make the plot. The increment of r should made small enough so that the curve is smooth... do not plot markers, but a smooth curve through many points.
In general, when plotting by hand or by Excel, make all plots
to scale, label axes correctly, title plots.

 RIGHT CLICK and select SAVE AS:  .pdf of 2019_HW#1_9th Ed.

Note: HW #1 is the only HW I will post. Please refer to the textbook.

Thurs.
8/29
9:00 PM
HW Box
M-208

2
8/29/19

3, 12

Chapt  3:    3, 4*, 8, 10, 15, 22
Chapt 12:  1, 5*, 15
 *Notes
  *Prob 3.4: Do not just copy a (the book's) solution. Use 3D geometry/trig. to find the half-height c/2 of the HCP cell.
Hint: Consider a stack of 4 touching spheres - three on the base and the fourth in the divot. Their centers are at the corners of a tetrahedron, each side of the tetrahedron being 2R. The height of the tetrahedron is c/2. The apex of the tetrahedron is directly above the centroid of the tetrahedron's base triangle. Note that the centroid of a triangle is 2/3 of the way from a corner to the opposite side.
  *Prob 12.5: use the Structure Names in the LEFT column of Table 12.4, e.g., "Rock Salt", "Cesium Chloride", "Zinc Blend", "Flourite", "Perovskite", "Spinel".  

Monday
9/9
9pm

HW Box
M-208
3
9/05/19

3

28, 34(bcfg), 36, 46(acfg), 47, 50(ab), 52(ab)*, 58, 61, 63
 *Notes:
  *Prob. 3.28 is an tetragonal system. Draw it that way.
  *Prob. 3.52 is an orthogonal system. Also, for #52, explain your answer ... why are the planes equivalent or not. Just listing equivalent planes does not tell me your thought process (what does it mean for two planes to be "equivalent").
Wednesday
9/18
9pm

HW Box
M-208
4
9/05/19
4

  3, 5*, 6*, 8a, 16, 24, 31, 40*, 42, 47a, 51a
 *Notes
  *Prob 4.5: Hint: use the density equation to determine the number of atoms/m3.
  *Prob 4.6: All elements in table should be characterized as one of the following:
  (a) substitutional solid solution (s.s.s) with complete solubility;
  (b) s.s.s. with incomplete solubility; or
  (c) interstitial solid sol'n.
 You are not just finding one element for each category.
  *Prob 4.40: Do not think of a single unit cell (where (110) is not on the surface), but a material of many cells. Various planes may be exposed to the free surface. Thus, plane (110) can be on the surface of a material (any plane could be). You are comparing plane (100) and (110), both of which are exposed to the air.
  *Prob 4.51: here is a pdf with images for Prob 50 and 51.

Exam #1
5
10/10/19
5

   3, 8, 9, 20*, 25, 28
 *Notes
  *Prob 5.20 Hint: Use Table 5.2.

Keep, but do, as it will be on Exam #2
6
10/20/19
6

   5, 7, 8, 15, 19, 26*, 30, 32, 52, 6.D1
 *Notes
  *Prob 6.26: Copy the stress-strain curve so you can show how you determined the various properties.
  *Prob 6.30: Use EXCEL to plot the stress vs. strain curve. Only use S.I. units. This problem is worth more than the others. Follow rules for graphing as in the lab manual.

Monday
10/28
9pm
HW Box in M-208

7
10/20/19
7

   1, 5, 6b, 7, 13, 21, 22, 23, 25, 37, 42, 7.D4
 Note: Use your own words in the descriptions.

Exam #2
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