Unit 1

Basic principles of crystalline materials, classification of metallic materials, Structure of Crystalline Solids – Crystal Systems – unit cells – Metallic Crystal Structures – Miller indices – Crystallographic planes and directions – Linear and Planar Atomic Densities – Imperfections in Solids: Point – Linear – Interfacial defects.
Elastic, Anelastic and Plastic behaviour. Mechanical properties – stress-strain curves for ductile and brittle alloys. Ductility – Resilience -toughness. Hardnesstesting. Dislocations and plastic deformation. Slip phenomenon. Slip in single crystals.

Unit 2

Constitution of alloys-solid solutions, intermetallic compound, Hume-Rothery rule. Phase diagram-phase rule, lever principle, isomorphous, eutectic, peritectic and eutectoid reactions. Iron-Carbon phase diagram, equilibrium and non- equilibrium cooling in solid state, isothermal transformation, martensite and bainite reactions Strengthening mechanisms – grain boundary hardening, solution hardening, work hardening, Ductile and Brittle Fracture – fracture mechanics. Impact testing. Ductile – brittle transition. Fatigue and creep properties.

Unit 3

Heat treatment of steels: annealing, normalizing, hardening and tempering. Heat treatment of tool and die steels. Hardenability, its testing and simple problems related to materials selection. Surface hardening of steels – carburizing, nitriding, carbo-nitriding, induction method.
Classification of cast iron and steels – properties, microstructures and uses of cast irons, plain carbon, alloy, stainless, heat resistant, tool and die steels. Composition, properties, microstructures and uses of non-ferrous alloys – brass, bronze, aluminium, magnesium, nickel and zinc alloys. Introduction to light alloys, ceramicsand electronic materials. Introduction to materials design-material selection –processing concept, case study

Course Objectives

• To impart knowledge on fundamental concepts of crystalline materials, structure and mechanical behaviour of materials
• To familiarize various phases and phase diagrams of metal and alloys and crystalline defects.
• To facilitate an understanding of various strengthening mechanisms, heat treatment, for specific materials and requirements
• To familiarize with the properties and applications of non-ferrous materials, light materials and advanced materials

Course Outcomes

• CO1: Understand the structure and properties of various materials
• CO2: Analyze the various modes of imperfections and failure in solids and methods to strengthen it.
• CO3: Understand the phase diagrams of metallic materials
• CO4: Comprehend the effect of mechanical properties by heat treatment processes.
• CO5: Select ferrous, non-ferrous, and advanced materials for various applications.

CO – PO Mapping

Textbook(s)

• Callister W. D. – ‘Materials Science and Engineering’ – John Wiley & Sons – 2010 – 8^th Edition

Reference(s)

• Avner S. H. – ‘Physical Metallurgy’ – McGraw Hill Education – 2000 – 2^nd Edition
• Shackelford J. F. – ‘Introduction to Materials Science for Engineers’ – Prentice Hall 2014 – 8^th Edition
• JavedHashemi, Smith F. W. – ‘Foundations of Materials Science and Engineering’ – McGraw Hill Education – 2010 – 5^th Edition.
• Dieter G. E. – ‘Mechanical Metallurgy’- Tata McGraw Hill – 2013 – 3^rd Edition.

Evaluation Pattern