Superalloys are specialty materials, specifically created to operate in highly corrosive and high temperature environments.  Many of these environments benefit from or require improved surface finishes which can be difficult or impossible to achieve via machining or traditional metal forming methods.

Largely driven by the growth of the Metal Additive Manufacturing industry and the need for improved surface finishes on AM Nickel-Chrome and Iron-Nickel Superalloy components, REM has developed a range of isotropic superfinishing/polishing processes for a number of these Superalloys.  These process technologies have been adapted for both traditionally formed components via REM’s ISF® Process, as well as for AM components via REM’s Extreme ISF® Process. These processes can be applied to exterior surfaces as well as internal channel applications (including cooling channels) and have been proven to produce low roughness surfaces and to increase component fatigue life in high cycle fatigue testing.

For both low and high volume applications in turbomachinery, rocket propulsion, under-sea oil & gas, and many others, REM’s ISF® Technology is an optimal choice to produce a low roughness isotropic surface, to remove debris/FOD from internal channels, and to increase dynamic fatigue life.

REM’s process technologies are available via outsourced processing or via installation at a customer’s site.  As a complete technology supplier, REM will support you through process development and initial qualification through full production.  REM is proud to have been selected as a potential support technology for the NASA Artemis Program as a part of the RAMPT Project via REM’s NASA SBIR Phase 1, Phase 2, and Phase 3 Contract Awards.

Some of the many Superalloy Applications REM can assist with include:

  • Airfoils
  • Fuel Pump Applications
  • Open Impellers
  • Closed or Shrouded Impellers
  • Blisks
  • Diffusers
  • Heat Exchangers
  • Manifolds
  • Thrust Nozzles

Some of the Many Benefits of utilizing the ISF® Process and Extreme ISF® Process:

  • Reduced Friction/Roughness
  • Reduced Component Wear
  • Increased Resistance to Contact Fatigue
  • Increased Resistance to Dynamic/Bending Fatigue
  • Improved Laminar Flow Properties/Reduced Turbulence
  • Increased Component Cleanliness
    • Eliminated FOD Risk (AM powder removal)
  • Support Structure Reduction/Elimination (AM)
  • Increased Corrosion Resistance

Some of Superalloys REM has Experience with:

  • Hastelloy® X
  • Inconel® 625
  • Inconel® 718
  • JBK-75
  • NASA HR1

Have a Superalloy application that would benefit from an improved surface finish or some of the other component benefits provided by REM’s technologies?  Working with a Superalloy or similar material not listed here?  Contact us today for more information or to get a project started.  REM’s technology can often be modified to new alloy applications without significant difficulty and REM is always excited to support new applications.