Diffusion Alloys Limited is a UK SME employing 80 people. It is a private company recently acquired and wholly-owned by Hephaestus Holdings Limited. A letter to the customers of Diffusion Alloys Limited from Chris Heminway, CEO of Hephaestus Holdings Limited, may be found here. The major areas of Diffusion Alloys Limited Company business are as follows:
Processing Industrial Gas Turbine Components
- Diffusion coating processes
- Aluminising (aluminizing) - pack, above-pack, vapour, slurry
- Chromising (chromizing) - pack, above-pack
- Boronising (boronizing or boroding) - slurry (for steam turbines)
- Non-diffusion coating processes
- High velocity oxy-fuel (HVOF) MCrAlY coating
- Aluminium wire arc spray
- Acid stripping
- Chemical stripping of sprayed and diffusion coatings from serviced (and new) blades and vanes
- Additional processes
- Degreasing, fluorescent penetrant inspection, grit blasting, heat tinting, weld repair, Siclean
Processing Other Components
- Long tube / pipe and large part aluminising
- For protection against carburisation, metal dusting, hot corrosion, oxidation, sulphidation and erosion
- Chemical vapour deposition hard material coating
- TiN and / or TiC coatings for protection against wear
- Advanced chromising of coin blanks
- Cost-effective alternative to stainless steel and nickel plated steel coin blanks - DALCRO
- Diffusion coating diverse component range
- Application of aluminide, chromide and boride diffusion coatings to protect against various degradation mechanisms including corrosion, oxidation, metal dusting, carburisation and wear
Special Projects
- Involving the supply of turnkey coating plant and the concomitant transfer of proprietary Company technology
In the 2010 / 2011 financial year the percentage of total turnover represented by these major areas of business was 81%, 13% and 6% respectively. Typically, in excess of 90% of the Company turnover relates to export markets.