SYLLABUS FOR SEMESTER - IV ( EMM)

09ME402      ENGINEERING MATERIALS AND METALLURGY     

                                                                                                      

OBJECTIVE:        

·         To impart knowledge on the structure, properties, treatment, testing and applications of metals and non-metallic materials so as to identify and select suitable materials for various engineering applications.

Review (Not for Exam):

Crystal structure – BCC, FCC and HCP structure – unit cell – crystallographic planes and directions, miller indices – crystal imperfections, point, line, planar and volume defects – Grain size, ASTM grain size number.

1. FERROUS AND NON FERROUS METALS                                                       

Constitution of alloys – Solid solutions, substitution and interstitial – phase diagrams,

Isomorphous, eutectic, peritectic, eutectoid and peritectoid reactions, Iron – Iron carbide equilibrium diagram. Classification of steel and cast Iron microstructure, properties and application. Effect of alloying additions on steel (Mn, Si, Cr, Mo, V Ti and  W) - stainless and tool steels – HSLA - maraging steels – Gray, White, Malleable, spheroid - Graphite - alloy cast irons , Copper alloys – Brass, Bronze and Cupronickel ,  Aluminium alloys, Bearing alloys.

2.HEAT TREATMENT                                                                                       

Definition – Full annealing, stress relief, recrystallisation and spheroidizing –normalizing, hardening and Tempering of steel.  Isothermal transformation diagrams – cooling curves superimposed on I.T. diagram CCR - Hardenability, Jominy end quench test – Austempering, martempering – case hardening, carburising, nitriding, cyaniding, carbo-nitriding – Flame and Induction hardening. Heat treatment of non ferrous alloys - precipitation and age hardening .Heat treatment of HSS tools, gears, springs and gauges.

3. NON-METALLIC MATERIALS                                                                          

          Engineering Ceramics – Properties and applications of Al₂O₃, SiC, SiC, Si₃, N₄, PSZ Fracture and Defects of ceramics - Ceramic coating methods: Plasma spraying - APS and VPS, process principles, component preparation, deposition rates, coating materials. Chemical vapour deposition - deposition rates, carbon control of the substrate, industrial CVD, typical procedures, advantages and disadvantages, use of CVD coatings in metal cutting, wear mechanisms.– Fiber and particulate reinforced composites.  

4. MECHANICAL PROPERTIES AND TESTING                                                             

Mechanical properties of engineering materials - Mechanisms of plastic deformation, slip and twinning – Creep, Fatigue and Fracture - Types of fracture – Testing of materials - tension, compression and shear loads - fatigue and creep tests – hardness and its effects – testing for hardness (Brinell, Vickers and Rockwell) - Impact test - Izod and Charpy.

5. NON Destructive Testing and surface engineering                          

Non Destructive Testing: Non Destructive Testing basic principles and testing method for  radiographic Testing, Ultrasonic testing, Magnetic Particle Inspection and Liquid Penetrant Inspections Introduction to surface engineering Definition of surface engineering, diffusion techniques, deposition methods, high and low energy beam methods, surface engineering charts, elastic contact mechanics

                                                                                                                     

TEXT BOOKS

1. Kenneth G. Budinski and Michael K. Buinski, “ Engineering Materials”, Prentice Hall of India Ltd, 2002.
2. Raghavan, V, “Materials Science and Engineering”, Prentice Hall of India (P) Ltd., 1999.
3. Aswani.K.G, “A Text Book of Material Science”, S.Chand and Co. Ltd., New Delhi, 2001.
4. Khanna O.P., “A Text Book of Materials Science and Metallurgy”, Dhanpat Rai Sons, 2004.

REFERENCES

1. William. D.Callsber, “Material Science and Engineering”, John Wiley and Sons, 1997.
2. Sydney.H.Avner, “Introduction to Physical Metallurgy” Mc Graw Hill Book Company, 1994.