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  • Users: rms1956
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  1. rms1956

    Vacuum Heat Treatment

    I have a requirement to vacuum heat treat a material. Since this is a casting with at least 0.100" of material removal before finished dimensions is it ok to heat treat in an inert atmosphere?
  2. rms1956

    Back Modulus

    I am going to run a test that references an old specification calling out a method called a back modulus. If possible, I would like a history lesson on the reason for the unloading and reloading. I understand they are trying provide a method to be used when a material does not exhibit a well...
  3. rms1956

    Alloy Depletion

    thread330-228257 I stumbled upon this thread today and was wondering if anyone else has had success with the creation of Alloy Depletion. We are going to use this as training material and would like to create a fairly uniform layer of Alloy Depletion on 718 material. We have both vacuum...
  4. rms1956

    Inconel 713C or Mar-M-246

    I am looking for a supplier for either of these materials. 3/4", and 1.2" diameter bar. The quantities I want are small probably 1 10' bar or so of each. Does anyone know of a supplier for these small quantities?
  5. rms1956

    Strength of cast to size vs machined from casting test coupons.

    I'v always been told that when testing cast to size magnesium tensile specimens the casting "skin" should be left on. With some specifications there are different requirements for cast to size vs machined from casting specimens. Does anyone know of any articles that discuss this? Thank You
  6. rms1956

    Checking for cracks on internal threads

    I'm looking to inspect some parts for cracks to internal threads. The parts in question are 15-5PH H1025. The threads are 1-14-2A x 2" deep. The part is about 2.375" outside diameter by 3" long. We called a local Xray house and the tech support person said the wall thickness (approx 0.670")...
  7. rms1956

    17-4 PH

    We are machining a part out 17-4PH. The bar stock is annealed 5.25"dia x 12" long. We will be machining a section to approx 4.5" outside diameter X 5" long with an internal 3.75-12 thread (4.5" deep). The application requires we restrict rotation so the 4" diameter internally threaded section...
  8. rms1956

    Retained Austenite in 17-7PH?

    I'm looking for articles/papers on retained autenite in 17-7PH SS. Particularly interested in articles/papers contianing photos of evidence in the microstructure. Thanks
  9. rms1956

    Machining of Magnesium

    We have some ZE41A magnesium to machine. All of the articles on the subject that I have read are generic and do not specify the alloy when discussing special handling requirements. Does anyone know the particulars of this alloy? Chemistry requirements are 94% Magnesium. Thanks
  10. rms1956

    Need Material Source

    I need a source for some high temperature alloy bar stock. The size is 2" diameter by 18" long bar stock. I only need 2 pcs however. The materials would be Udimet 700 or 713C. Does anyone know of a supplier who would carry this material but also deals in these small quantities? Thanks
  11. rms1956

    High Temperature Marking Methods

    I need to mark parts that are going to be heat treated. The parts may be various alloys. Some high temp materials(not much oxidation)and some that will develop significant scale. The marking is mainly for identification purposes but somtimes it is used to help us find certain indications that...
  12. rms1956

    Double Groove Welding and ASME Section IX-00

    I've got a double groove weld. P No 43 material. Iv'e got to get it tested to ASME section IX-00 according to the client. Does ASME Section IV-00 support double groove welding? Its a big document but I'm not sure if they make a reference to it and I can't find any drawings in it that depict...

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