Halver, Germany
Halver, Germany

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Verlotski V.,Markishes Werk GmbH | Stanglmaier R.H.,Markishes Werk GmbH | Moormann G.,Markishes Werk GmbH | Geraets R.,Markishes Werk GmbH
Journal of Engineering for Gas Turbines and Power | Year: 2011

Many marine and stationary engines operate on fuels that contain corrosive elements, with the result that some highly loaded combustion chamber components must be replaced frequently. Märkisches Werk, GmbH (MWH) has pioneered the development of mineral-metal, multiphase coatings to protect valves and other highly loaded engine components against hot-gas corrosion. Mineral-metal, multiphase coatings are a unique and innovative approach to improving hot-gas corrosion resistance in a cost-effective manner. In general, these coatings combine the beneficial chemical and thermal attributes of ceramic coatings with the mechanical properties and substrate adhesion characteristics of a metal. Extensive laboratory and field trials have proven that MWH CrystalCoat protects heavy fuel oil (HFO) engine exhaust valves against hot-gas corrosion. It is projected that the newest coating formulation (CrystalCoat HT) will protect four-stroke HFO exhaust valves against hot-gas corrosion over their entire service life. © 2011 American Society of Mechanical Engineers.

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