Self-Fluxing and Self-Fusing Alloy Powder Materials for Thermal Spray

For a fully dense coating that is highly abrasion and corrosion resistant, choose a self-fluxing alloy followed by a post-coat fuse, using a thermal spray treatment. Self-fusing alloys offer many advantages of self-fluxing alloys when post-coat fusing is not possible.

Self-fluxing materials

Self-fluxing materials are first applied using a thermal spray treatment, for example; flame spray powder such as Thermospray, atmospheric plasma spray or High Speed Oxygen Fuel (HVOF) spray.

Features and benefits of fused coatings

  • Fully densely coated microstructure
  • High coating hardness
  • Excellent wear and corrosion resistance
  • Coatings are metallurgically attached to the substrate material

Self-fusing materials

Self-fusing materials are a good alternative for situations where post-coat fusing can degrade the component or the litter material cannot tolerate the temperature of the fusing process. These materials are partially combined during the spraying process without requiring a post-coat fusing.

Features and benefits of self-fusing materials

  • Easy-to-use, one-step coating process
  • Very low porosity
  • Very good coating hardness
  • Very good wear and corrosion resistance
  • Adheres well to the base

In many cases, coatings are easily applied using a simple combustion powder Thermospray system. Fusing is usually done manually, if necessary, using a simple oxy-acetylene torch. At higher production volumes or mass production, a fully automated system can be used to apply coatings.

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