Corrosion of metals Parallel investigation of different influencing factors on different metal samples Features - principles of corrosion and corrosion protection on metallic materials - oxygen corrosion - electrochemical corrosion (local elements) - corrosion protection with external voltage and sacrificial anodes Learning objectives/experiments - corrosion behaviour of different metallic materials (rust / passivation) - formation of local elements - influence of pH value of the electrolyte solution - influence of salt concentration in the electrolyte solution - oxygen corrosion - corrosion protection -- external voltage -- sacrificial anodes -- protective layers Specification [1] investigation of corrosion and corrosion protection measures [2] 8 electrolyte vessels with covers and 6 specimen holders each [3] adjustable power pack for application of external voltage [4] air supply via diaphragm pump [5] reversing valve for air or external gas supply [6] adjustment of gas flow rate for each vessel using flow control valves [7] recording of pH value of electrolyte solutions using manual unit [8] pressure range for external gas supply: 0,2...1,0bar Technical data Electrolyte vessels - capacity: 1000mL - material: glass Power pack - voltage: 0...30VDC - current: 0…5A Diaphragm pump: approx. 260L/h Specimens - 6x stainless steel, steel, copper, brass, aluminium - 3x glass - dimensions: 100x15x1mm Measuring ranges - pH value: 0...14 -- resolution: 0,01 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 1280x460x630mm (experimental unit) Weight: approx. 55kg LxWxH: 730x480x240mm (storage system) Weight: approx. 15kg