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Surface Engineering - Wear Resistance Specialists

Wear Resistance Specialists

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You are here: Home / Processes / Furnace Overlay Processes / Infiltration

Infiltration

Infiltration is an excellent coating method for extreme wear applications with difficult geometries such as downhole drilling tools and coal fired power plants. It combines a true metallurgical bond and a dense, uniform distribution of alloy particles throughout the coating, to create excellent erosion resistance and toughness in complex geometries.

In infiltration, the pores of a wear component are filled in with a metal or alloy of a lower melting point. The component is heated in contact with the coating alloy to a temperature above the melting point of the alloy but below the melting point of the component. Through capillary action, the molten alloy is pulled into the interconnected pores of the component and ideally fills the entire pore volume.

In addition to filling in the pores, the melted filler metal forms a true metallurgical bond with the substrate. The bond formed is stronger than the bonds formed by thermal sprayed coatings. It can be applied to curved, inner, or outer surfaces simultaneously, which can reduce the cost of machining the coating surface after brazing. It also has less distortion, lower residual stresses, and lower substrate dissolution.

Surface Engineering - Wear Resistance Specialists

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MENU
  • Home
  • Wear Modes
    • Abrasion
    • Erosion
    • Adhesion
    • Surface Fatigue
  • Consumables
    • Product Forms
    • Diamond EnhancedKRYPTONITE
    • Nickel Alloys SPECIALLOY
    • Cobalt Alloys PRIME
    • Alloy + Tungsten Carbide CARBORIDE
    • Carbide HVOF Powders VELOCITY
    • Tungsten Carbide
    • Tungsten Powders
    • Tungsten Rods
    • Iron Based Products
      • Ferro-Carboride AA Series
      • Hardfaced Wear Plate & Pipe
    • Thermal Spray Consumables
  • Processes
    • Welded Overlay Processes
      • MIG & Submerged Arc Hardfacing
      • TIG & Oxy-Acetylene Hardfacing
      • Laser Hardfacing
      • Plasma Transfer Arc (PTA) Hardfacing
    • Spray Overlay Processes
      • HVOF Spray
      • Plasma Spray
      • Twin Wire Arc Spray (TWAS)
      • Flame Spray
      • Manual Torch Powder Welding
    • Furnace Overlay Processes
      • Infiltration
  • Equipment
    • SE PTA 350 – PTA System
    • SE TW 400 – Twin Wire Arc Spray System
    • SE-JET 5000 – HP-HVOF Spray System
    • SP1100DP TAC System
    • Manual / Puddle Spray Torch
  • Resources
    • Hardness Conversion Chart
    • Coefficient of Thermal Expansion
    • Powder Mesh Size Comparator
    • Particle Size Distribution Chart
  • About Us
  • Contact