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HARAMAYA UNIVERSITY INSTITUTE OF
TECHNOLOGY
MEng 2091 Engineering Materials I COURSE OUT LINE
Department of Mechanical Engineering Institute of Technology,
Haramaya University
Course Number MEng 2091
Course Title Engineering Materials I
Degree Program BSc in Mechanical Engineering
Module Material Science
Module Coordinator
Lecturer Mr. B.RAMESH KUMAR
ECTS Credits 4
1. Introduction: Classification of Materials Metals and Alloys,
Ceramics, Glasses, Polymers,
Composite Materials, Nano Materials. Engineering Application
Selection of Design ,
Properties ( Physical , Chemical, Mechanical , Thermal ,
Electrical , Magnetic and Optical ) ,
Performance and Cost Criteria . Special Application - Nuclear,
Space and Biological
2. Mechanical Properties: Introduction; Tensile strength;
Compression strength; Fatigue
strength; Creep strength; Torsion strength; Hardness Testing of
material by Brinell, Rockwell
machines,
3.Atomic Structure: Introduction; Parts of an atom (nucleus,
electrons, proton, neutron);
Isotopes; Atomic number; Periodic table; Valiancy; Bonds (ionic,
covalent, metallic & secondary
bonds)
4.Crystalline Structure: Introduction; Crystal - Brevais
Lattices, Crystal Directions and Planes
based on Miller Indices, Atomic Packing Factor [for Simple Cubic
, Body Centered Cubic
(BCC), Face Centered Cubic (FCC), Hexagonal Close Packed
(HCP)
5.Defect in Crystals: Point defects; Dislocations and
dislocation theory, Anisotropy, Phase
Transformations
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6.Phase & Phase Transformation: Introduction; Solid
solution; Timetemperature curve;
Metallic alloy systems; Binary alloy phase diagrams; Iron -
carbon equilibrium diagram
7.Cast Irons and Steels: Structure and properties of White Cast
iron, Malleable Cast iron, grey
cast iron, Spheroid graphite cast iron, Alloy cast irons.
Classification of steels, structure and
properties of plain carbon steels, Low alloy steels, Hadfield
manganese steels, tool and die steels.
8.Composite Materials: Thermo Plastics, Thermosetting Plastics,
Elastomers, Fibers.
Applications of Polymers. Composite Materials Advantages,
Dispersion Strengthened
Composites (Sintered Aluminum Powder (SAP), Particulate
Composites (Cemented Carbides
WC-CO), Fiber Reinforced Composites (Fiber Reinforced Plastics
(FRP), Carbon - carbon
Fiber Reinforcement)
Lab Exercises Exercises using Torsion Tester, Pendulum
Impact Tester (Izod), Creep Tester, Fatigue
Tester, Universal Material Tester, Hardness
Tester (Brinell and Rockwell),
Pre-requisites: Engineering Chemistry
Semester: 3rdStatus of Course: Compulsory
Teaching and Learning methods : Lectures supported by
tutorials,
Assignments, and Laboratory exercises.
Assessment/ evaluation & Grading Systems
Assignments, Laboratory Exercises 10 %,
Mid-semester Examination 40 %, and
Final Examination 50 %.
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Attendance Requirement:
Minimum of 80% attendance during lecture
hours;
100% attendance during practical work
sessions, except for some unprecedented
mishaps; and
Presence during industrial visit/visits.
Literature: 1. Callister, Williams, D., Material Science and
Engineering, 7th ed., 2006.
2. Science of Engineering Materials / Agarwal
3. Ashby, Michael, Engineering Materials,
4. elements of Material science / V. Rahghavan
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