Plasma Nitriding: Benefits, Applications and Limitations

Benefits of Plasma Nitriding at Wallwork

  • Optimized Load for Cost-Effectiveness: Wallwork offers plasma nitriding solutions with optimized load capacities to provide the best value processing for components, from small parts to those up to two meters in length.
  • Maintains Dimensional Integrity: The low-temperature nature of plasma nitriding ensures that the base material’s dimensions and characteristics remain unchanged, making it ideal for precision industries such as aerospace.
  • Precise Control Over Case-Hardened Layer: Plasma nitriding allows fine control of the depth and properties of the case-hardened layer, resulting in minimal white layer formation and improved wear resistance.
  • Enhanced Component Durability: Plasma nitriding improves the endurance of components, offering greater wear resistance, particularly for high-load and high-stress applications.
  • No Chemical Residues: Unlike other heat treatments, plasma nitriding leaves no chemical residues, which allows for easier application of hard coatings, such as Physical Vapor Deposition (PVD), for further wear resistance.
  • Compatible with Duplex Coating: Plasma nitriding can be used as part of a duplex hard coating process, enhancing component performance and protection.
  • Certifications for Quality Assurance: Wallwork is AS/EN9100 certified and NADCAP accredited, ensuring that all plasma nitriding services meet the highest quality standards for aerospace and other precision industries.

Applications of Plasma Nitriding

  • Wear Parts: Plasma nitriding is widely used for components exposed to heavy wear, including gears, camshafts, followers, valve parts, and dies, improving their longevity and performance.
  • Aerospace Components: Wallwork provides plasma nitriding for critical aerospace parts, including engine and airframe components, to improve their durability and reliability.
  • Stainless Steel Parts: For stainless steel components used in harsh environments, plasma nitriding helps maintain corrosion resistance while enhancing wear properties.
  • High-Load Applications: Plasma nitriding is ideal for parts in high-stress, high-load applications, such as fuel injectors and precision-machined components.

Limitations of Plasma Nitriding

  • Not Suitable for Low-Hardenability Steels: Plasma nitriding is not effective for low hardenability steels, as it has limitations in nitrogen pressure quenching.
  • Masking Needs: Some components require mechanical masking to prevent non-specified areas from being nitrided. For example, threaded holes can be blocked, but other surfaces must be carefully masked.
  • Post-Treatment Corrosion Protection: Although plasma nitriding improves durability, components still require corrosion protection after processing.

Wallwork’s plasma nitriding services offer precision, durability, and versatility, making it an ideal solution for industries such as aerospace, automotive, and precision manufacturing.