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8/6/2019 Chapter 01 Avi

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Chapter 1-

MSE XXX: Introduction toMaterials Science & Engineering

Course Objective...Introduce fundamental concepts in MSE

You will learn about:

material structure how structure dictates properties

how processing can change structure

This course will help you to: use materials properly realize new design opportunities

with materials

a


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Chapter 1-

Lecturer:

Time:

Location:

Activities: Present new material Announce reading and homework

Take quizzes and midterms*

*Make-ups given only for emergencies.

*Discuss potential conflicts beforehand.

b

LECTURES


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Chapter 1-

Teaching Assistants will participate in recitation sessions,

have office hours to help you with course materialand problem sets.

Name_______________

__________

Office_____ XXX_____ XXX_____ XXX

_____ XXX_____ XXX

Tel.X-XXXXX-XXXXX-XXXX

X-XXXXX-XXXX

E-mail_______________

__________

d

TEACHING ASSISTANTS


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Chapter 1-

Activities: Discuss homework, quizzes, exams Discuss lectures, book Pick up missed handouts

X:XX-X:XX each weekday**____.____.____.

____.____.

_____ XXX_____ XXX_____ XXX

_____ XXX_____ XXX

_______________

__________

**Contact professors for special arrangements

e

OFFICE HOURS


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Chapter 1-

_____

________.

Required text: Materials Science and Engineering: An Introduction

W.D. Callister, Jr., 6th edition, John Wiley andSons, Inc. (2003). Both book andaccompanying CD-ROM are needed.

Optional Material: _____

________.

_____

________.

f

COURSE MATERIAL


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Chapter 1-

Weekly in-lecture quizzes XX%Held on _____ at the beginning of classBased on core homework problems

Your lowest quiz grade will be dropped

Midterm #1 XX%

Tentatively scheduled for:Material covered:

Midterm #2 XX%Tentatively scheduled for:

Material covered:

Final XX%Tentatively scheduled for:

Material covered:

g

GRADING


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Chapter 1-

KEEP TO THE READING /HOMEWORK/QUIZ CYCLE**there are no recitations during the first week.

MON TUE

recit-hmk1

recit-hmk2

WEDStart ofcourse

recit-hmk1

recit-hmk2

THU

recit-hmk1

recit-hmk2

FRI

assign-hmk1

quiz-hmk1

assign-hmk2

recit-hmk2 quiz-hmk2assign-hmk3

recit-hmk1

h

THE WEEKLY CYCLE


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Chapter 1-

Week

123456

78

910

Topic

General Intro; Atomic BondingCrystalline Structure; Imperfections

Diffusion; Mechanical PropertiesStrengthening Mechanisms; Failure

Phase DiagramsKinetics & Phase Transformations

Processing & Applications of MetalsStruc., Prop., Proc., Applic. of CeramicsStruc., Prop. of Polymers; Composites

Corrosion; Elec. & Thermal Prop.Magnetic & Optical Prop.

Econ. & Envir. Issues; Materials Selection

Chapter

1,23*,45,6*

7*,8*

9*

10*

1112,13*

15,16

17*,18*,19*20,21

22*

Lectures: will highlight important portions of each

chapter. i*

One or more sections of this chapter are on the CD-ROM.

READING SCHEDULE


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Chapter 1-

Materials are...engineered structures...not blackboxes!

Structure...has many dimensions...

Structural feature Dimension (m)

atomic bonding

missing/extra atoms

crystals (ordered atoms)

second phase particles

crystal texturing

< 10-10

10-10

10-8-10-1

10-8-10-4

> 10-6

1

CHAPTER 1: MATERIALSSCIENCE & ENGINEERING


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Chapter 1-

ex: hardness vs structure of steel

Properties depend on structure

Data obtained from Figs. 10.21(a)and 10.23 with 4wt%C composition,and from Fig. 11.13 and associateddiscussion, Callister 6e.Micrographs adapted from (a) Fig.10.10; (b) Fig. 9.27;(c) Fig. 10.24;and (d) Fig. 10.12, Callister 6e.

ex: structure vs cooling rate of steel Processing can change structure

2

Structure, Processing, & Properties

Cooling Rate (C/s1002003004005006000.010.1110100100(a)30()30 ()30 ()4

H

ardness

(B

HN)


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Chapter 1-

1. Pick Application Determine required Properties

2. Properties Identify candidate Material(s)

3. Material Identify required Processing

Processing: changes structure and overall shapeex: casting, sintering, vapor deposition, doping

forming, joining, annealing.

Properties: mechanical, electrical, thermal,magnetic, optical, deteriorative.

Material: structure, composition.

3

The Materials Selection Process


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Chapter 1-

T (C)-20-100 123456 0 Electrical Resistivity of Copper:

Adding impurity atoms to Cu increases resistivity.

Deforming Cu increases resistivity.

4

Adapted from Fig. 18.8, Callister 6e.(Fig. 18.8 adapted from: J.O. Linde,

Ann Physik5, 219 (1932); andC.A. Wert and R.M. Thomson,Physics of Solids, 2nd edition,McGraw-Hill Company, New York,1970.)

ELECTRICAL


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Chapter 1-

Space Shuttle Tiles:--Silica fiber insulation

offers low heat conduction.

Thermal Conductivityof Copper:

--It decreases whenyou add zinc!

Com osition (wt%Zinc4003002001000010203040

5

Fig. 19.0, Callister 6e.(Courtesy of LockheedMissiles and SpaceCompany, Inc.)

100

Adapted fromFig. 19.4W, Callister6e. (Courtesy ofLockheed AerospaceCeramics Systems,Sunnyvale, CA)(Note: "W" denotes

fig. is on CD-ROM.)

Adapted from Fig. 19.4, Callister 6e.(Fig. 19.4 is adapted from MetalsHandbook: Properties and Selection:Nonferrous alloys and Pure Metals, Vol. 2,9th ed., H. Baker, (Managing Editor),American Society for Metals, 1979, p.315.)

THERMAL


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Chapter 1-

Magnetic Permeability

vs. Composition:--Adding 3 atomic % Si

makes Fe a betterrecording medium!

Magnetic FielFe+3%SFe

Adapted from C.R. Barrett, W.D. Nix, andA.S. Tetelman, The Principles ofEngineering Materials, Fig. 1-7(a), p. 9,1973.Electronically reproducedby permission of Pearson Education, Inc.,Upper Saddle River, New Jersey.

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Fig. 20.18, Callister 6e.(Fig. 20.18 is from J.U. Lemke, MRSBulletin,Vol. XV, No. 3, p. 31, 1990.)

Magnetic Storage:

--Recording mediumis magnetized byrecording head.

MAGNETIC


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Chapter 1-

Transmittance:

--Aluminum oxide may be transparent, translucent, oropaque depending on the material structure.

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Adapted from Fig. 1.2,Callister 6e.(Specimen preparation,P.A. Lessing; photo by J.

Telford.)

single crystalpolycrystal:low porosity

polycrystal:high porosity

OPTICAL


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Chapter 1-

Stress & Saltwater...

--causes cracks!

Heat treatment: slows

crack speed in salt water!

4 m

--material: 7150-T651 Al"alloy"

(Zn,Cu,Mg,Zr)

Adapted from Fig. 11.20(b), R.W. Hertzberg, "Deformationand Fracture Mechanics of Engineering Materials" (4th ed.),p. 505, John Wiley and Sons, 1996. (Original source:Markus O. Speidel, Brown Boveri Co.)

8

Adapted from Fig. 17.0, Callister 6e.(Fig. 17.0 is from Marine Corrosion,Causes, and Prevention, John Wiley and

Sons, Inc., 1975.)

Adapted from Fig. 11.24,Callister 6e. (Fig. 11.24 provided courtesy of G.H.

Narayanan and A.G. Miller, Boeing CommercialAirplane Company.)

held at160C for 1hrbefore testing

increasing loadas-is10-1010-8Alloy 7178 tested insaturated aqueous NaClsolution at 23C

DETERIORATIVE


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Chapter 1-

Use the right material for the job.

Understand the relation between properties, structure, and processing.

Recognize new design opportunities offeredby materials selection.

Course Goals:

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SUMMARY


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Chapter 1-

Reading:

Core Problems:

Self-help Problems:

0

ANNOUNCEMENTS

chapter 01 avi

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