Unit 1 Introduction

5 lecture hours

• Basic concepts of material selection for various engineering applications
• materials property requirements as per engineering applications
• mechanical properties of metals
• classification of metal alloys: types of ferrous alloys and non-ferrous alloys
• micro and macro examination

Unit 2 Fundamentals of structure of crystalline solids

8 lecture hours

• unit cells and crystal systems
• crystallographic planes and directions
• single crystal and poly crystalline materials
• types of crystal structures
• density computations
• coordination number and atomic packing factor
• closed packed crystal structures
• x-ray diffraction method and Bragg’s law for crystal structure determination
• Imperfections in solids like point defects
• dislocations – linear defects and interfacial defects

Unit 3 Failure of Metals

3 lecture hours

• fundamentals of fracture
• ductile fracture
• brittle failure
• fatigue (cyclic stresses)

Unit 4 Phase diagrams

• definitions and basic concepts
• the Gibb’s phase rule
• the ion-ion carbide phase diagram
• development of micro structure in phase diagram and its percentage amount by weight
• concept of phase transformations
• kinetics of phase transformation
• isothermal transformation diagram (TTT diagram)
• Jominy hardenability test 9 Subject Code: 3132004 w.e.f