Oxidizing Heat Treatment

What is Oxidation Heat Treatment?

Oxidation heat treatment is a process that creates a controlled oxide layer on the surface of metals to increase corrosion resistance, enhance wear resistance, and sometimes provide an aesthetic appearance. This process is commonly used for passivation, decorative coating, or improving surface hardness.

How is Oxidation Heat Treatment Applied?

  • Preparation Phase: The metal surface is cleaned and prepared for the oxidation process.
  • Oxidation Phase:
    • Hot Air Oxidation: The metal is placed in an oven to react with oxygen at a specific temperature.
    • Chemical Oxidation: The metal surface is immersed in chemical baths to create a controlled oxide layer.
    • Electrolytic Oxidation (Anodic Oxidation): An oxide layer is formed on the metal surface using electric current.
  • Cooling and Final Checks: After oxidation is complete, the material is washed, dried, and sometimes protective coatings are applied.

Advantages of Oxidation Heat Treatment

  • Increases corrosion resistance.
  • Provides wear resistance.
  • Provides an aesthetic and decorative appearance.
  • Can reduce friction by increasing the slipperiness of the metal surface.
  • Improves electrical and thermal resistance.

Materials Used in Oxidation Heat Treatment

Stainless steels
Carbon steels
Aluminum and aluminum alloys
Titanium
Copper and copper alloys
Oxidation Heat Treatment

Main Sectors

Oxidation heat treatment is a critical surface treatment both functionally and aesthetically, widely used in various industrial applications.

  • Automotive: Engine and exhaust components, brake discs.
  • Aerospace: Used to increase surface durability in the aircraft and space industries.
  • Machine and Tool Machinery: Wear-resistant parts.
  • Electronics and Energy: Components requiring electrical insulation or conductivity.
  • Defense Industry: Weapons and armored parts requiring high strength.

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