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Recent content by Cherney

  1. Cherney

    Nitriding Inconel 718

    EdStainless: Ion Nitriding data is what I'm looking for.
  2. Cherney

    Nitriding Inconel 718

    mfgenggear: Thanks for the input. I am a little nervous that even 10µm will be a push. Trying to develop a general process spec to keep mfg cost in control. If, say 40 hrs nitriding is required, Yikes! I don't want a sudden surprise that blows the roof off cost. The more I can learn in advance...
  3. Cherney

    Nitriding Inconel 718

    EdStainless: Material will be HT somewhere around 1800°F, slow cooled prior to aging. Then machined and ion nitrided. Cleaning is not a problem. Where did you get information stating that going above 600°C would be detrimental? I had considered a higher temperature. What are the ill-effects?
  4. Cherney

    Nitriding Inconel 718

    Mfgenggear: The total case depth required is 10-30µm
  5. Cherney

    Nitriding Inconel 718

    EdStainless, you are correct in that 2759/8B is written for steel and does not refer to super alloys, such as Inconel 718. The specification is still a guideline for ion nitriding of aerospace parts, even if not 100% fitting for this material. There's little information available regarding my...
  6. Cherney

    Nitriding Inconel 718

    Not possible for this application, and a tough one to write a spec for. AMS 2759/8 specifies that Plasma Nitriding must be carried out at a temperature not more than 50°C less than the tempering temp. Also, Nitriding times differ from thatof Aging. So, the two cannot be combined, at lest in this...
  7. Cherney

    Nitriding Inconel 718

    Thanks EdStainless. This is why I was wondering what the Nitriding temp was. 10 microns isn't much depth, but if the process temp to get there alters the tempering or if processing times are unrealistic,say 100 hrs or something, we may change course.
  8. Cherney

    Nitriding Inconel 718

    Does anyone have experience with plasma nitriding inconel 718? I would lie to know if a nitrided layer of 10 microns can be achieved. Was also wondering what the processing time and temperature would be. Thanks.
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