The blast erosion-resistance properties of HVOF thermal spray Cr3C2 type coating system and aluminized material were examined to improve erosion-resistance of turbine housings of compressors used in turbochargers for marine diesel engines. As a result, the erosion life of aluminized material is as same as that of the substrate, on the other hand the erosion life of thermal sprayed coating is ten times of that of the substrate. Therefore, erosion life of turbine housing can be extended by the surface treatment procedure. This technology is applicable to actual products.

chromium carbide coating, diesel engines, erosion life, erosion resistance, high-velocity oxyfuel spraying, turbochargers
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2010
DVS Media GmbH
Topics
Diesel engines Turbochargers High-velocity oxyfuel spray coating Erosive wear resistance
Issue Section:
Wear Protection
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