zum 60. Geburtstag gewidmet Stromende, partikelhaltige Fliissigkeiten wirken je nach ihrer Korrosivitat in unterschiedlicher Weise auf Metalloberflachen ein. Mit Hilfe elektrochemischer Messungen wird gezeigt, wie sich die Parameter der Erosionskorrosion auswirken. Als Korrosionssystserne dienen acht Eisenwerkstoffe, die in einer feststoffhaltigen Quencher-Esung einer Rauchgasentschwefelungsanlage exponiert werden.Flowing, particle containing liquids induce various effects on metal surfaces according to their corrosivity. Electrochemical measurements demonstrate in which way the parameters of erosion corrosion are acting. As corrosion systems eight ferrous materials are chosen which are exposed to a solid containing quencher liquid of a flue gas desulphurization plant.

The transport of corrosive liquids containing solids, in conventional energy and process technology as, for example, in oil and gas production, places high demands on the selection of materials for plant construction. A discussion on the chemo-mechanical load demonstrates the significance of hydrodynamics in selecting the test method. Choosing a pipe with an abrupt expansion of cross-section as a flow model yields a new method of simulating operation conditions. By subjecting ferrous materials used for hydraulic machinery to representative media from three important industries, a broad spectrum of results can be obtained. Classification of the results leads to four basic types of mass loss behaviour in materials as functions of flow rate. These findings yield guidelines for the selection of materials and the dimensioning of flow equipment.

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