This course introduces one to the wide variety available in choice of materials.. The course covers a brief overview of the basics of material science, phase diagrams, properties of ferrous and non ferrous alloys, different applications of alloys, corrosion and material selection. The course basically intends to make the students recognise the vast implications of choice of material on their product designs.
- Basic Materials Science: Crystallography, phase diagrams,grain boundaries, dislocation movements and their effects on properties
- Material properties: Stress-strain relationships, Tensile strength, Toughness, Impact Strength, Ductility, Malleability, Stress intensity, Fatigue
- Failure by Oxidation, Corrosion, Passivation, Selective Leaching
- Corrosion: Types, impact on material properties, prevention
- Other failure mechanisms: Stress Corrosion Cracking, Creep, Embrittlement
- Strengthening mechanisms: Solute Hardening, chemical hardening, dispersion hardening, cold working, strain hardening
- Aluminium alloys: Properties, phase diagrams and uses
- Copper alloys: Properties phase diagrams and uses
- Ferrous Alloys (Steels): Types, properties, iron-carbon phase diagrams.
- Material Selection: Ashby Charts
- As engineers, we will mostly be involved with making new things. And how does one make things? Out of materials. In fact, the all things in this “materialistic” world are made of materials. While designing new products, one will have to choose and utilise materials appropriately.For this, one needs a clear understanding of the world of materials: metals, alloys. ceramics, plastics, composites, polymers etc. Also, one needs to understand why each material has widely different properties from an elemental level and how the properties can be manipulated by changing compositions. Additionally, knowledge of the reasons of why certain materials fail under certain conditions will be very valuable in making new designs. This being done, one also needs to know how to select materials from a wide palette of available materials, given one’s design requirements. This is exactly what the course gives you.
- As such, this course is not a pre-requisite to other courses in the department, However, this course has immense use in practical life. Any project one undertakes, either as students or as engineers in the industry, which involves one to design something new, one will be required to choose the material appropriately, and be sure that it will not fail under its working conditions.
While it is a good practice to refer to textbooks or video lectures besides your class notes, it is also important to remember that these sources may not be flawless. Reference material should only be used as a tool to strengthen concepts and not as a substitute for your class notes.
- Callister: Materials Science and Engineering: An Introduction, 6th Edition (Can be used as a course text book)
- A good collection of articles in materials science
- Database of different materials, articles
- Collection of lectures on Material science
- Articles on aluminium alloys
- Articles on ferrous metallurgy
- The corrosion resistant iron pillar of Delhi
- Titanic’s brittle steel
- Liberty Ship failures
- Passivation: http://www.youtube.com/watch?v=QvTXOUvMOuo
- Corrosion of Stainless Steel:
- History of fatigue failure analysis
- Analysing material fatigue
- What is Materials Science:
- Using Terahertz Radiation to Control Material Properties
- The Key Role of Impurities in Ancient Damascus Steel Blades: http://www.tms.org/pubs/journals/jom/9809/verhoeven-9809.html
- Stainless Steel Alloys:
- Interesting materials:
- Auxetic foams (Negative poisson’s ratio):
- Shape Memory Alloys:
- Carbon Nanotubes: