MENG 286 MATERIALS SCIENCE
Department:
Mechanichal Engineering
Program Name:
Course Number:
MENG 286
Mechanichal Engineering
Credits:
3 Cr
Program Code: 23
Year/Semester:
2012-2013Spring
Required Course
Elective Course
(click on and check the appropriate box)
Prerequisite(s):
CHEM 101
Catalog Description:
Classification of materials and properties. The structure of perfect and imperfect solids. Mechanical properties of
materials. Phase diagrams. Metal alloys. Thermal processing of metallic materials. Performance of materials in
service. Materials selection in engineering design.
Course Web Page:
Textbook(s):
William D. Callister, Materials Science and Engineering an Introduction, 7 th edition, John Wiley & Sons, 2007
Lab Manual:
Indicative Basic Reading List :
1.J.P.Schaffer, A.Saxena, S.D.Antolovich, T.H.Sanders, and S.B.Warner, The Science and Design of Engineering
Materials, McGraw Hill, 1999
2. J.F.Shackleford , Introduction to Materials Science for Engineers, Prentice Hall, 2000
3. S.H.Avner, Introduction to Physical Metallurgy, McGraw Hill, 1974
4. William F. Smith, Foundations of Materials Science and Engineering. McGraw Hill, 2 nd Edition 1993, 3rd edition
2004
Topics Covered and Class Schedule:
(3 hours of lectures and 1 hour laboratory per week)
Week 1
Introduction: structure and methodology of the course materials and engineering, major classes
of materials.
Week 2
Structure of materials; Unit Cells, metallic crystal structures, density computations,
crystallographic planes & directions, single crystals, polycrystalline materials, anisotropy.
Week 3
Imperfections in solids; vacancies and self interstitials, impurities in solids, dislocations, planar
and bulk defects.
Week 4
Diffusion mechanisms, steady-state and nonsteady-state diffusion, factors that influence
diffusion.
Week 5
Mechanical properties of Metals, stress and strain in metals. Material selection according to the
strength and ductility level. The tensile test and the engineering stress strain diagram + tensile
testing experiment
Week 6
Hardness and + the hardness testing experiment. Recovery and recrystallization of plastically
deformed metals.
Week 7
Fracture of metals, ductile to brittle transition. Fatigue and creep + creep test experiment
Weeks 8-9
Mid-Term Examination
Week 10
Phase diagrams; phase diagrams of pure substances, binary isomorphous alloy systems, the
lever rule.
Week 11
Binary eutectic alloy systems.
Weeks 12
The iron-iron carbide phase diagram. Low alloy steels, Stainless steels. Cast irons.
Weeks 13
Week 14
Heat treatment of plain carbon steels, annealing normalizing, quenching and tempering + heat
treatment experiment
Nonferrous alloys and Corrosion of metals
Week 15:
Final Examination
Laboratory Schedule:
(1 hour of laboratory per week)
Week 5
Tension Test
Week 6
Creep Test
Week 7
Hardness Test
Week 11
Impact Test
Week 12
Heat treatment Test
Course Learning Outcomes:
At the end of the course, student must be able to
(1) Classify the solid materials, learning and understanding the atomic bonding in solids. Calculate the density of a
material from the knowledge of the crystal structure understanding and drawing the cubic crystal structures, Unit
cell, Face-centred cubic, body-centre cubic .Understanding and calculating the Miller indices of a crystallographic
planes
(2) Understanding and describing the imperfections and dislocations in the solids and calculating the grain size of a
crystalline material.
(3) Understanding the diffusion mechanisms and using the Fick’s Laws to make calculations for the diffusion
problems.
(4) Understanding the mechanical properties of materials, the Hooke’s law , the stress and strain relations, Poisson’s
ratio, ductility, hardness methods and conducting an experiment assign.
(5) Understanding and define the mechanisms and the techniques used to strengthening and harden the materials and
the various failure modes such as, fracture, fatigue and creep.
(6) Understanding the phase diagrams for alloy systems, learning to make a correlation between microstructure and
mechanical properties by carefully control of the heat treatment processes.
(7) Understanding the importance of a heat treatment, and the effects on the microstructure of the iron-carbon alloys.
To design a heat treatment process that will produce the desired microstructure.
(8) Knowing the types of ferrous and nonferrous metals, and the applications area.
(9) Understanding of the mechanisms and causes of corrosion and degradiation of metals, learning the methods used
to prevent the corrosion.
Assessment
Method
No
Percentage
Midterm Exam(s)
1
30%
Lab. And Quiz
Min 2
30 %
Final Examination
1
40%
Contribution of Course to Criterion 5
Credit Hours for:
Mathematics & Basic Science :1
Engineering Sciences and Design : 3
General Education :0
Relationship of Course to Program Outcomes
The course has been designed to contribute to the following program outcomes:
(a) apply knowledge of mathematics, science, and engineering
(b) to design and conduct an experiments, as well as analyze and interpret data.
(d1) to function on teams
(e) identify, formulate, and solve engineering problems
(g) to communicate effectively
(k) use the techniques, skills, and modern engineering tools necessary for engineering practice
Grading System
GRADE
A
AB+
B
BC+
C
CD+
D
DF
NG
I
W
PERCENTAGE
85-100
80-84
75-79
70-74
66-69
63-65
60-62
57-59
54-56
50-53
45-49
0-44
NO GRADE
INCOMPLETE
WITHDRAWN
GPA
4.0
3.7
3.3
3.0
2.7
2.3
2.0
1.7
1.3
1.0
0.7
0.0
Course Policies
a) Attendance
Students are expected to attend lectures, tutorials and/or practical sessions regularly throughout the semester.
Students are expected to be punctual for class, enter classroom before the lecturer. Late comers will not be accepted in
the class for that period if he/she is late 5 minutes after the lecture starts. However, if a student is absent, he/she must
present an official written document stating the reason for being absent.
b) Cheating
Cheating is a serious offence. The minimum penalty for students who are caught cheating in a quiz or an exam is a
score of zero in the relevant assignment or exam and send to the university disciplinary committee.
c) Plagiarism
Copying of any parts of the lab reports of other students is not allowed and, if found out, will result in an
automatic zero for that report for both copier and copyee. Partners can discuss the experiment and results between
themselves, but must each represent their own report.
d) Handing up of lab. reports
All students (new or repeating) will attend to the Labs. Attendance is very important for labs.
Experiments will be conducted under the assistant’s supervision with a group maximum three students must be in
each group.
Students are required to hand in their lab reports on time at the due one week of the experiment performed,
submission at any other time until the end of the working period of the day will be considered as a late submission
and evaluated with 50% discount, no submission accepted after the day.
The Lab Report
A lab report is required for each experiment. The report is due one week after the lab is completed. The format of
the report consists of the following.
a) A brief statement of the aim of the experiment. This may be paraphrased from the lab manual or from the books.
b) The data and results, tabulated where appropriate. The presentation must be clear and complete, with units,
uncertainties and appropriate numbers of significant figures. The equations and formulas used for deriving the results
should be given, with a complete sample calculation. Do not leave out any data, if you feel that a datum should be
ignored, explain your reasons for doing so.
Propagation of uncertainties, note that for addition and subtraction, uncertainties are added, whereas for
multiplication and division, the percentage of uncertainties are added. e.g.
(A ± a) + (B ± b) = (A+B) ± (a + b), and
(A ± a) x(B ± b)=(AB) ± (a + b)%
c) In the discussion the experiment, the procedure, and the result should be discussed. Was the experiment
appropriate for the aim? Was the procedure appropriate? Any suggestions for improvement?
How reliable are the data? What were the sources of error? A good experimentalist carefully considers all sources of
error and tries to minimizes them as much as possible. Be as quantitative as possible in your discussion of errors.
That is, do not say that a certain factor will cause an error in a measurement, any one can say it. Try to estimate how
large that error is likely to be, so that you can see whether it is significant or not. Some sources of error are more
important than others, and one does not want to waste time and effort to remove minor sources. The aim of doing an
error analysis is so that someone else can judge how reliable your results are. He or she can than decide whether or
not to use them. Results reported without an error analysis are practically useless to others.
Note that there are two general types of errors. Systematic errors are due to, e.g. improper calibration of the
instrument; such errors cause a systematic shift of all measurement and lead to a biased or inaccurate result. Random
errors cause measurements to be scattered, leading to an imprecise result. A precise result (small scatter) can still be
inaccurate ( the average value disagrees with the actual). Conversely, an accurate result can be imprecise.
Discuss whether the results are what you would expect from theory. Whenever possible, compare them with known
or accepted values. Your values, with their uncertainties, should bracket the accepted values. If they do not, try to
explain why. Resist the temptation to blame everything on poor equipment.
In many ways the discussion section is the most important in a technical report. A technician can do an experiment
under supervision, but it takes a trained scientist or engineer to explain what the results mean.
d) A CONCLUSIONS section should be included, summing up the experiment and the results
e) Makeup and Reseat Exams
Makeup exam will be given for the missing midterm exam. The reseat exam will be given for the missing final
exam or for the fail course (F, D-) or for the warning status.
Makeup and reseat exams will be given only for the following legitimate reasons with official documentation.
- Contacted a contagious disease
- Hospitalization
- Accident
- Death of immediate family members
No makeup exam will be given for QUIZES. No makeup exam will be given if no official documentation is
presented or the lecturer is not informed within three days after the exams have taken place.
An NG grade will be assigned to the student/s who have an absenteeism of more than 50% and missing exam or a
missing experiment .
No reseat exam will be given to the NG grade
Prepared by: Lec. Cafer Kızılörs
Date Prepared: 25 February 2013