tungstenizing

Tungstenizing is a surface treatment process that involves applying a layer of tungsten or tungsten carbide to a substrate material. This is typically achieved through a thermal spray coating method, such as plasma spraying or high-velocity oxygen fuel (HVOF) spraying. The primary goal of tungstenizing is to enhance the surface properties of the substrate, particularly its wear resistance, hardness, and corrosion resistance.

The tungsten or tungsten carbide particles are heated to a molten or semi-molten state and then propelled at high speed onto the prepared surface of the component. Upon impact, the particles flatten and rapidly solidify, forming a dense and cohesive coating. The thickness of the tungstenized layer can vary depending on the application and the desired performance characteristics.

Tungstenizing is employed in a wide range of industries, including aerospace, oil and gas, manufacturing, and tooling. Components that undergo significant abrasive or erosive wear, such as cutting tools, drill bits, turbine blades, and pump components, often benefit from tungstenizing. The inherent hardness and high melting point of tungsten make it an effective material for protecting surfaces from extreme operating conditions. The specific properties of the coating can be influenced by the feedstock material used (e.g., pure tungsten or different grades of tungsten carbide) and the spray parameters.