Preface Chapter 1: Corrosion Prevention A New Approach in Corrosion Study Using DFT and Monte Carlo Simulation to Investigate the Synergistic Effects Natural Green Inhibitor Citrus Sinensis and Synthetic Benzotriazole on Low Carbon Steel Increasing the Corrosion Resistance of Type 201 Stainless Steel Pitting by Electrochemical Method in a Citric Acid Solution Chapter 2: Plasma Sprayed Coatings The Influence of Plasma Spraying Process Parameters on Microstructure and Selected Properties of Novel NiCrAl-Cr3C2 Composite Coating Determination of the Temperature Dependence of the Thermal Conductivity Coefficient of Plasma-Sprayed Coatings Based on Zirconium Dioxide in the Temperature Range up to 1100 °C Abradable Plasma Coatings from Mechanochemically Alloyed Aluminum Powder for Gas Turbine Engines Chapter 3: Foams and Porous Materials Electrical Properties of Aluminium Foam Mathematical Modelling of Structurally Inhomogeneous Porous Materials Forming Processes Mechanical Performance of Aluminium Foam Fabricated by Melt Processing with Addition of Boron Carbide Chapter 4: Functional Materials Development of a Self-Healing Coating by Microencapsulation Technique Development of an Electrochemical Sensor for On-Site Detection of Perfluorooctane Sulfonic Acid (PFOS) Effect of Hydrazine Hydrate on Reduced Graphene Oxide for Enhanced Electrochemical Sensing of Pb(II) Study of Silver Supported on Zinc Oxide Catalyst for the Oxidation of Diesel Particulate Matter Effect of Metal Cation Composition in Magnesium-Aluminum Layered Double Hydroxide during Adsorptive Removal of Cr(VI) from Aqueous Solution.