Introduction to titanium alloys. Part 1 Experimental techniques: Microscopy; Synchrotron radiation X-ray diffraction; Differential scanning calorimetry and property measurements. Part 2 Physical models: Thermodynamic modelling; The Johnson-Mehl-Avrami method: Isothermal transformation kinetics; The Johnson-Mehl-Avrami method adapted to continuous cooling; Finite element method: Morphology of ß to a phase transformation; Phase-field method: Lamellar structure formation in -TiAl; Cellular automata method for microstructural evolution modelling; Crystallographic and fracture behaviour of titanium aluminide; Atomistic simulations of interfaces and dislocations relevant to TiAl. Part 3 Neural network models: Neural network method; Neural network models and applications in phase transformation studies; Neural network models and applications in property studies. Part 4 Surface engineering products: Surface gas nitriding: Phase composition and microstructure; Surface gas nitriding: Mechanical properties, morphology, corrosion; Nitriding: Modelling of hardness profiles and the kinetics; Aluminising: Fabrication of Al and Ti-Al coatings by mechanical alloying.