Course Objectives
- To understand metals and their properties
- To understand effects of various alloying elements on properties and Iron Carbide diagram
- To understand various Carbon Steels & their Heat Treatment process
- To understand different types of low alloy steels and their Heat Treatment Process
- To understand Stainless Steel, types of Stainless Steel.
- To understand various types of Heat Treatment Process such as Normalising, Annealing, Quenching, Tempering, Surface Hardening & Stress Relieving
- To understand Cracking in Steels
- To understand Destructive Testing specially (Tensile, Impact & Bend Test)
- To understand Forging, Casting, Rolling & welding Process.
- Weldability of steels
- Fundamental of High Alloy Steel
- Solidification of Metals & Alloys
- To understand how to check test certificate.
Metal
- Metal is a chemical element that is a good conductor of both electricity and heat and forms cations and ionic bonds with non-metals. In a chemistry, a metal (Ancient Greek metallon) is an element, compound, or alloy characterized by high electrical conductivity.
- In a metal, atoms readily lose electrons to form positive ions (cations). Those ions are surrounded by delocalized electrons, which are responsible for the conductivity. The solid thus produced is held by electrostatic interactions between the ions and the electron cloud, which are called metallic bonds.
- Uses of Metals
- They are made into jewellery due to their hard and shiny appearance
- They are used to make pans, since they are good conductors of heat
- They are used in electric cables, because they are malleable, ductile and good conductors of electricity.
- They are so strong to build bridges and scaffolding
- They make a ringing sound, sonorous, hence they are used in bell making.
Uses of Non- Metals
- Oxygen- used for Respiration, for burning rocket fuels.
- Nitrogen-used for manufacturing ammonia and urea
- Diamond- used as a gem
- Silicon- used for manufacturing of glass
- Chlorine-used for Disinfecting water. Graphite- used as an electrodes
- Iodine- used as an antiseptic
- Hydrogen- used in oxy Hydrogen torch, For hydrogenation of vegetable oils
- Helium-used for filling balloons
- Neon-used for illuminating advertisement signs.
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