1) A metal alloy has the engineering stress-strain curve shown see next page. A bar of this material is 14 inches long and 2 inches in diameter. a. What load can the bar hold without permanent deformation? [4 points]
y 480,000psi 2in 2 A 3.14in 2
E52001 Introduction to Materials Science - Term D16
Monday, April 25: Homework Problem Associated with Today's Class
Introduction to Phase Diagrams
A sample of AI-Mg alloy with a total mass of 100 g consists of single phase or that has a
1. Determine whether each of the following electron congurations is an inert gas, a halogen, an alkali
metal, an alkaline earth metal, or a transition metal. Justify your choices.
(a) 132s22p63s23p5 Halo 3W5 -
(5)1s22s2p63s3p3d7452 NKaVWLI 10W" W
E52001 - Introduction to Materials Science - Term D16
Friday, April 12!: Homework Problem Associated with Todays Class
Introduction t Diffusion
Many heat treatment operations involve use of an inert gas inside the furnace.
ESZOOllntroduction to Materials ScienceTerm 015
Prof. Chrys Demetry
Friday, March 27, 2015
Name: SOUL-OMS Team it:
cfw_Pieose do NOT write your name on other pages since grading is done biindiy. )
There are 6 pages including this cover sheet. Be
, . . . . .
/ 7. The atomic weight, density, and atomic radius for three hypothetical alloys are listed in the following table. For
/ each, determine whether its crystal structure is F CC, BCC, or simple cubic and then justit your determination.
ES 2001 EXAM #1
D-TERM AY 2016-2017
D. LADOS / F. FARHADI
MARCH 30, 2017
There are six questions all together on the exam. The weight of
each question is given.
Please be certain that your answer is legible, and that it is
IIIB lVB VB VIE VllB FA_\
20 22 23 so
Ca T1 In Fe 00 Nl Cu Zn
L0 1.5 1.5 1.8 1.8 LE 1.9 1.6 .
37 39 40 42 43 45 as 47 as 49 52
Rb Y Zr Mo Tc Rh Pd Ag cu In Te
0.8 1.2 1.4 1.3 1.9 2.2 2.2 1.9 1.7 1.7 2.1
s5 56 5
Po: A '2.
fompoim 110 I 2 3 I
3 2 Opom 7 3; in alelragonal unit
'1 I 3- .L
(b) Repeal part (a) for arhombohedral unit cell. 50' 1 (RCA-Mil: T): I F a) = ( L
6) [2 Demmme the Mine, indicesf or the planes Shown m thefollowmg um! c
l4. Cite the indices of the direction that results from the intersection of each of the following pairs of planes within a
cubic crystal: (a) the (110) and (111) planes, (b) the (110) and (170) planes, and (c) the (117) and (001) planes.
w 54 W
Um] a, [17
3) Al has an FCC structure.
a. What is the Coordination Number?
Oorallnmllm :H: is \Q
b. Calculate the APF.
APP; M , (ilrla'w'm? 2 ohm l/
a3 h (g1 x (owa'XlJ) if
galLuau; 0 . 1qoLiao'lll
c. Calculate the lattice parameter, a, for Al.
an M11 . kid
13- Draw in ZDtseeon'_thie arrangements of the atoms on (morand (110) planes
BCC unit: cell); ahdlvsfhowtcleay whether the plane is a squamor a"
lth'in the unit cell at how/where the atoms touch. [6 points]
c. Calculate the planar density for (110) pla
4) Give the mer chain structure and circle the mar unit for: [8 points =
2 points for each]
d. Calculate the molecular weight of the mer unit for PVC (see page 2)
, (Qxlg.oi)+ (l x 35.48)+(3xl.oo:: 6,156 U/moi
5) Answer the following questions:
6) Answer the following questions: [20 points = 4 points for each]
_ BCC 0, FCC. -
a. What IS polymorphism? Give one example.
W Same Moll caudal MW; cfi
05 we rise 444/2. Jre/ml. Ex. Trim.
fe/f an J! SWJmfe
b. What are copo/ymers? c or
Name: 8 Dunl0 8 Team it:
ESZOOllntroduction to Materials ScienceTerm 016
Prof. Chrys Demetry
EXAM #2: STRUCTUREPROPERTY RELATIONSHIPS
Friday, April 8, 2016
(Please do NOT write your name on other pages since grading is done biindiy.
There are 7 pages inc
ES zealIntroduction to Materials ScienceTerm D14
Prof. Chrys Demetry
Tuesday, May 6, 2014
Name (printed): S O LuTl O N 5
cfw_Please do NOT write your name on other pages since grading is done blindly. )
There are 8 pages including this cover she
ES 2001 - B TERM/2009-2010 D. LADOS / S. GOUVEIA / J. LOWELL Homework Set #7 due Dec. 17, 2009 Review/Study Chapter 8 Read Example Problems in Chapter 8 Do problems 8.2, 8.3, 8.7, 8.13, 8.17, 8.18, 8.25