MEEG 213
Materials Science and Metallurgy
3 Cr.
Course Objectives:
This course provides basic knowledge of science behind materials & physical metallurgy. Introduce the concept of structure property relations. Lay the groundwork for studies in fields such as solid-state physics, mechanical behavior of materials, phase & phase diagram, heat treatment, failure of materials and their protection. Develop intuitive understanding of the subject to present a real world engineering examples to give students a feel of how material science is useful in engineering practices.
Course Plan (minimum 45 hrs) (23 lectures of 2hrs)
For this course, total of two lectures (each of two hours) are allocated over the semester period. All the theoretical lectures, laboratory works, case studies and exams will be covered on the assigned lecture hours. Basically, there are three major parts in this course as explained below:
I. Lecture Series (30 hrs)
This course will begin with classroom lectures to generate basic understanding of materials science and engineering. Please refer to subsequent section Course Syllabus for detail course contents. Two internal exams will be taken as per department schedule based on the lectured course content.
II. Case Studies (8 hrs)
As part of this course, students are required to conduct group case studies on given three different topics. The details of the case studies and group work could be found on separate document MEEG 213 Case Studies.
III. Laboratory Works (8 hrs)
There will be two laboratory works as part of this MEEG 213 course. These lab works will be conducted during regular class hour at the convenience of the course instructor. Following are the two laboratory works in this course. The laboratory works may be slightly changed over the period.
Course Evaluation
This course is 50 – 50 evaluation course to provide practical knowledge along with the theoretical understanding. The evaluation breakdown of this course is as below:
Final Examination: 50 Marks
• Objective: 10 Marks
• Subjective: 40 Marks
Internal Evaluation: 50 Marks
• Internal Exams: 15 Marks
• Case Studies: 15 Marks
• Laboratory Works: 15 Marks
• Assignment/Attendance: 5 Marks
Course Syllabus
Introduction to Materials Science and Engineering
Materials, Science and Engineering inter-relation, Classification of materials, Functional classification.
Crystal Structures
Atomic Arrangements: Structure of atoms, Atomic bonding and bonding energies, Crystalline and amorphous materials, Single and polycrystalline, Bravais lattices, Cubic crystal system, Point, direction and planes in unit cell, Miller indices, Diffraction techniques for crystal structure analysis.
Imperfections in Atomic Arrangements: Point defects, Line defects, Surface defects, Significance of defects, Effect of grain boundaries, Slip and Twinning.
Mechanical Properties of Materials
Tensile test, Hardness test, Impact test, Fatigue test, Fracture mechanics, Fracture behaviour in materials, Fatigue crack growth rate, Creep test.
Solidification, Phase Relations and Strengthening Mechanism
Solidification: Nucleation, Homogeneous nucleation, Heterogeneous nucleation, Controlled nucleation, Growth mechanisms, Planar growth, Dendritic growth, Cooling curves, Cast structures, Solidification defects, Casting processes.
Solid Solution and Phase Equilibrium: Phase diagram, Solubility and solid solutions, Solid solution strengthening, Isomorphous phase diagram, Gibbs phase rule, Lever rule.
Dispersion Strengthening and Eutectic Phase Diagram: Dispersion strengthening, Intermetallic compounds, Three phase invariant reactions, Eutectic phase diagram, Iron-Iron carbide phase diagram.
Heat Treatment of Steels and Cast Irons
Annealing, Normalizing, Spheroidizing, Tempering, Time-Temperature-Transformation diagram, Continuous-Cooling-Transformation diagram, Surface treatments.
Non-Ferrous Alloys
Common non-ferrous metals, Aluminium alloys, Copper alloys, Brass, Bronze
Ceramic Materials
Properties of ceramic materials, Applications of ceramic materials, Inorganic glasses, Glass ceramics, Refractories.
Reference Books
[1] Donald R. Askaland, Pradeep P. Fulay, Wendelin J. Wright, ‘The Science and Engineering of Materials’.
[2] William D. Callister, ‘Fundamentals of Materials Science and Engineering’.
[3] Van Vlack, ‘Elements of Material Science and Engineering’.