Formation of Amorphous Fe-Cr-P-C Alloy Coating Films by a Newly Developed Thermal Spraying Technique

Masahiro Komaki; Tsunehiro Mimura; Yuji Kusumoto; Ryurou Kurahasi; Masahisa Kouzaki; Tohru Yamasaki

doi:10.4028/www.scientific.net/MSF.654-656.1090

Paper Titles

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Amorphous Magnesium Sheet Produced by Twin Roll Casting
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Devitrification Studies of Mg₆₀Cu₂₉Gd₁₁ Bulk Metallic Glas
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Consolidation Behavior of Cu-Zr-Al Metallic Glass Powder by Spark Plasma Sintering
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Formation of Amorphous Fe-Cr-P-C Alloy Coating Films by a Newly Developed Thermal Spraying Technique
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Low Temperature Synthesis of Silicon Nanocrystals Fabricated by PECVD and their Optical Property
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FePBNbCr Soft Magnetic Glassy Alloys “SENNTIX” with Low Loss Characteristics for Commercial Inductor Cores
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High B_s FeSiBPCu Nanocrystalline Wide Ribbons Using Industrial Raw Materials
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Effect of Nitridation Magnetic Properties of Nanocrystalline Fe-Co Alloy Powders
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Formation of Amorphous Fe-Cr-P-C Alloy Coating Films by a Newly Developed Thermal Spraying Technique

Abstract:

Some amorphous Fe-Cr-P-C coating films having high hardness and high corrosion resistance have been produced by a newly developed thermal spraying technique. In order to control the temperatures of the powder particles in the flame spray and the substrate, a newly developed cylindrical nozzle, with external cooling nitrogen gas, was mounted to the front end of the thermal spray gun. Fe70Cr10P13C7 films with various external cooling gas velocities between 20 m/s and 40 m/s exhibited entire amorphous structure without oxides and/or unmelted particles. Corrosion-resistance of the films was observed in immersion tests using various corrosive liquids.