Surface Engineering
Nickel Based AlloysOur partner, LSN Diffusion manufactures a full spectrum of atomized nickel based alloys and powder size distribution ranges to work optimally in thermal spray, plasma spray, HVOF/HVAF (high velocity oxy or air-fuel), laser and PTA (plasma transferred arc) surfacing techniques.
The powders are made to meet international standards or formulated to customer specifications. Because of our partnership, we can offer an alloy powder development service (under confidentiality agreement where required) and can manufacture small quantities for customers R&D projects.
A full range of nickel based alloy powders blended with a variety of tungsten carbide compositions is offered.
Grade | Composition | Hardness Rc |
|---|---|---|
N-330 | Ni-6Cr-1B-4Si-1.5Fe-0.3C | 30-35 |
N-380 | Ni-8Cr-2B-3Si-2.5Fe-0.5C | 35 - 40 |
N-480 | Ni-13Cr-2.5B-3.5-Si-3.4Fe-0.5C | 45 - 50 |
N-580 | Ni-15Cr-3B-4.5-Si-4.5Fe-0.7C | 55 - 60 |
N-610 | Ni-17Cr-3.3B-4.5-Si-4Fe-0.9C | 59 - 64 |
N-616 | Ni-17Cr-3.7B-4.2-Si-3Fe-0.6C | 57 - 62 |
N-620 | Ni-17Cr-17W-3B-4Si-4Fe-0.8C | 60 - 65 |
Water atomizing is used to manufacture self-fluxing alloys (containing boron and silicon) powders. These powders have high energy stored in the particles that enhance fusing in the two stage spray and fuse process. Powder morphology enhances as sprayed coating density.
Gas atomized water collected offer high production yields and properties between water and dry gas atomizing.
Nickel based surface engineering alloys are applied to enhance the wear heat and corrosion resistance of machine components and find applications in many industries including oil and gas (search and production), power generation (including nuclear, hydro-carbon and waste to energy), hollowware glass production and plastics manufacture.
Atomized powder size distribution
LSN Diffusion processes atomized powder by a combination of air classification and sieving to produce the powder Particle Size Distribution (PSD) to suit the surfacing equipment or brazing application deployed by the customer.
In-line and final Quality Control checks use test sieves and laser diffraction analysis equipment to ensure strict conformance to specification.
LSN Diffusion offers a range of standard PSDs coded to indicate the suitable method of application and equipment.