MLp473
| MLp473 | |
|---|---|
| Materials Selection and Design Lab | |
| Credits | 1.5 |
| Structure | 0-0-3 |
| Pre-requisites | MLL372 |
| Overlaps | |
MLp473 : Materials Selection and Design Lab
[edit]This course is an extension of MLL372. It is expected that enrolled students would have successfully completed the credits of this course. The prior knowledge of content of this course would be mandatory. MLL701 Structure and Characterization of Materials 3 Credits (3–0–0) Basic concept of crystallography, crystal structure, stereographic Courses of Study 2024-2025 Materials Science and Engineering 261projection, diffraction analysis of crystal structure: X-ray, neutron and electron diffraction, texture analysis, selected area diffraction in electron microscope, micro-analysis in electron microscopy, scanning probe microscopy and related techniques, Chemical characterization will include Rutherford back scattering, Auger, X-ray photoemission, Energy dispersive, Wavelength dispersive, and Raman spectroscopes. Quantitative and tomographic analysis of microstructures (3D diffraction and imaging techniques). Mass spectrometry and NMR spectrometry. MLL702 Thermodynamics of Materials 3 Credits (3–0–0) Laws of thermodynamics: Thermodynamic systems and variables, Zeroth, 1st, 2nd and 3rd laws. Combined statement for 1st and 2nd laws; Equilibrium in thermodynamic systems: Free energy and criteria for equilibrium; Statistical interpretation of entropy; Unary heterogeneous systems: Phase equilibrium in one component system, Chemical potential, Clausius-Clayperon equation, Unary phase diagram; Thermodynamics of solutions: Partial molar quantities, Fugacity and activity, The behavior of dilute solutions, ideal, non-ideal and regular solutions; Binary heterogeneous systems: Gibbs phase rule and binary phase diagrams, Free energy composition diagrams, Common tangent construction, Phase equilibrium calculations; Introduction to ternary phase diagrams; Thermodynamics of electrochemical systems, cell reactions and EMF, Formation and concentrations cells; Thermodynamics of interfaces: Surface tension and surface energy, Surface excess properties, Effect of surfaces on phase diagrams; Equilibrium shape of a crystal: Gibbs-Wulff construction; Adsorption: The Gibbs adsorption equation. MLL703 Mathematical and Computational Methods in Materials 3 Credits (3–0–0) Review of linear algebra: Vectors, Matrices, Functions, Coordinate transformation (linear and orthogonal), Eigen values and Eigen vectors; Eigenvalue Problems: Matrix and diagonalization; Tensors and its applications in materials science (elastic anisotropy etc.,); Vector Calculus for different geometries – Linear and planes, directional derivative, gradients and integral theorems; Partial Differentiation – properties and solution techniques; Integration: Single, multiple, line and change of variables; Ordinary Differential Equations: Analytical and Numerical Solution methods of ODEs; Data Analysis: Probability and statistics - Curve fitting; Computing Probability, smoothening and reconciliation of data, concept and parameters of distribution, regression analysis (linear and nonlinear), Error estimation and analysis, confidence intervals, hypothesis testing; Numerical Techniques: Roots of equation, solution of Linear and Nonlinear systems of equations (Bisection, Newton raphson), Interpolation and extrapolation. MLp704 Materials processing and Characterization Lab 4 Credits (1–1–4) Materials processing routes: chemical synthesis, powder compaction, Heat treatment – annealing, quenching etc.; Light Microscopy: polishing and microstructure; X-ray diffraction and texture; Mechanical, Electrical and Chemical characterization of materials; Thermal analysis and Spectroscopy of materials; Electron microscopy (SEM, TEM etc.,); Micro- and nano- scale response of materials: Instrumented microindenter, Nano-indentation response etc.; Atomic force microscopy; Wear and Fatigue in materials; Creep at nano and bulk levels of materials; Dynamic characterization of materials. MLL712/ApL753 Materials Design and Selection 3 Credits (3–0–0) Historical evolution of engineering materials, evolution of materials in products, Engineering materials and their properties: families of engineering materials, materials information for design, materials properties, Materials property chart: exploring materials properties, materials property charts e.g. the modulus- density chart, the strength-density chart, the fracture toughness-modulus chart, thermal conductivity-electrical resistivity chart, Materials selection-the basics: the selection strategy, materials indices, the selection procedure, Multiple constraints and conflicting objectives: selection with multiple constraints, conflicting objectives, Selection of materials and shape: shape factors, limits to shape efficiency, exploring the materials shape combinations, materials indices that include shape, architectured materials, Processes and process selection: classification of processes: shaping, joining and finishing, processing for properties, process selection, ranking process cost, Designing hybrid materials: holes in materials property space, composites, sandwich structures, cellular structures, segmented structures, case studies. MLL713 phase Transformations 3 Credits (3–0–0) Introduction and classification of phase transformation. Diffusion in Solid: Fick's 1st and 2nd laws, The Kirkendall Effect, Darken's analysis, various diffusion mechanisms. Thermodynamics of Transformation: Free energy of solid solutions, order of transformation, driving force for first order transformation with and without composition change, Second Order transformation, Spinodal decomposition. Nucleation kinetics: Homogeneous and heterogeneous nucleation, homogeneous nucleation with composition change, Heterogeneous nucleation, Strain energy effects. Growth Kinetics: Diffusion- controlled and Interface-controlled growth. Overall transformation kinetics, Johnson-Mehl-Avarami model. Particle coarsening. Recovery, Recrystallization and Grain Growth. Diffusionless transformation: Martensitic transformation. Solidification. MLL714 Fracture Mechanics 3 Credits (3–0–0) Linear elastic fracture mechanics (LEFM) and Elastic plastic fracture mechanics (EPFM). Theoretical cohesive strength. Energy based approach to fracture. Griffiths crack theory. Energy release rate: compliance and strain energy approach. Critical energy release rate and toughness. Stress field around a crack: Modes I, II and III. Plane strain and plane stress. Effect of plate thickness. Stress intensity factor. Critical stress intensity factor and fracture toughness. Plastic deformation near the crack tip. Approximate plastic zone size based on von-Mises and Tresca yield criteria. Irwin and Dugdale approaches. Effective crack size. J-Integral: definition and path independence. Equivalence of J, G and K. Crack-tip opening displacement. Fracture toughness testing. Ductile-brittle transition, impact energy fracture toughness correlation. Cyclic stress and strain fatigue. Fatigue crack propagation, analysis of engineering failures. Microstructural aspects of fracture toughness. Environmental assisted cracking. Mixed mode crack initiation and gr owth. MLL715 Advanced Engineering Materials 3 Credits (3–0–0) Introduction to various engineering materials (high strength steels, light metals and alloys (magnesium and its alloys, aluminum and its alloys and titanium and its alloys etc.,), composites, smart materials, porous materials etc.,) and their property profiles with their relation to basic structure; structure and properties of steels: high- and ultra-high strength steels, TWIP steels, TRIP steels, Dualphase steels, Martensitic steels, Bainitic steels etc.; structure and properties of light metals and alloys: Aluminum and its alloys (Al-Li, Al-Si, Al-Mg-Si etc.,), Magnesium and its alloys (Pure Mg and other conventional Mg alloys), Titanium and its alloys (pure Ti, α, α + β and β alloys, Transformation induced plasticity Ti alloys, etc.,); Introduction, structure and properties to composite materials (metal-matrix, particulate, laminated and fibre reinforced etc.,); structure and properties of: hybrid materials, porous materials (metal foams, lattice materials etc.,), smart materials (shape memory alloys etc.,), auxetic materials; Case studies of materials applications in automotive, aerospace, power generation sectors etc. MLL716/ApL767 Engineering Failure Analysis and prevention 3 Credits (3–0–0) Common causes of failure, principles of failure analysis, fracture mechanics approach to failure problems, techniques of failure analysis, service failure mechanisms, ductile and brittle fracture, fatigue failure, wear failure, hydrogen induced failure, environment induced failures, high temperature failure, faulty heat treatment and design failures, Courses of Study 2024-2025 Materials Science and Engineering 262processing failure (forging, casting, machining etc.), failure problems in joints and weldments, case studies for failure analysis of structural components and mechanical system. MLL717 Engineering and Speciality polymers 3 Credits (3–0–0) Introduction to engineering polymers, applications, processing, thermoplastic engineering plastics, polycarbonates, polyimides, polyphenylene oxide, liquid crystalline polymers, poly(ether ketone), thermosets, speciality polymers, hydrogels, conducting polymers, fluoropolymers. MLL718 polymeric Nanomaterials and Nanocomposites 3 Credits (3–0–0) Introduction to general aspects of nanostructured materials; Nanocomposites and block copolymers; Interaction parameter,phase behaviour, morphology; Phase diagrams, microphase separation transition; Polymer nanocomposites: Technical challenges; Understanding of interfacial dynamics using LJ Potential and many body problems approach; Nanoreinforcements eg. Nanoclay, POSS, Carbon nanostructures and nanoparticles; Dispersion and percolation; Influence of size, shape and diameter of nanotubes/nanofillers; Functionalisation of nanoparticles and nanoplatelets.