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help! what are the electrical characteristics of single crystalnickel based superalloys?

Discussion in 'Electronic Design' started by Robert Macy, Jun 20, 2013.

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  1. Robert Macy

    Robert Macy Guest

    Simple question, but somehow the answer has eluded my searches.

    The material is used in turbine blades.
    I've seen it also called CMSX-4

    I just want to find out what the conductivity and permeability of the
    single crystal structure is.

    And, then what the conductivity and the permeability of the material
    when recrystalization occurs.

    Anybody have a table, or reference?
     
  2. Guest

    http://journals.cambridge.org/actio...DF0EA762D.journals?fromPage=online&aid=238807
     
  3. Robert Macy

    Robert Macy Guest

    Thank you for the exact URL. I think I found this on a google search, but the Cambridge Press so obfuscates what is there was not certain it was what I wanted. Couldn't view anything other than the title, authors, NO abstract.. just a sentence. But, wanting $45 for a copy was predominate! Yeah, I always buy something before I know what it is.

    Just need some numbers. Simple, I don't want a great long dissertation on how they used some electron microscope etc. just need a @#$%#@ table, like .gov and NIST publish all the time.
     
  4. Guest

    Maybe email the material scientists are Georgia Tech with your question? They are easy to find there.
     
  5. Guest

    Authors is what I meant...
     
  6. whit3rd

    whit3rd Guest

    Is this about chrome-nickel superalloys? Those are suited
    for LARGE temperature swings, I'd imagine conductivity will be
    hard to model. Ferromagnetism isn't a problem, at least
    with most of the ones I've seen (Inconel and Hastelloy).
     
  7. Robert Macy

    Robert Macy Guest

    Good suggestion. I tried that found Prof. Rosario Gerhardt's name, email right away, but Cui, didn't appear to be ientical Culmination, emailed a similar reuest to them.
     
  8. Robert Macy

    Robert Macy Guest

    Why? no relative permeability? well, stays at 1?
     
  9. whit3rd

    whit3rd Guest

    Yes, that was what I meant. Pure nickel IS ferromagnetic, but not the
    US nickel coin (Ni-Cu alloy) nor most of the superalloys (Inconel X-750
    for instance, 70% Ni, 15-18% Cr).
     
  10. Robert Macy

    Robert Macy Guest

    Thank you. Interesting how putting ferro into an alloy destroys the magnetic properties, eh?

    Any idea how much the conductivity changes with Rx?
    1%? 10%? none? Something HAS to change since the surface chemical properties change.
     
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