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  1. tensilecvn

    Welding of Precipitation Hardening Nickel Alloys

    Thanks for the replies guys, your help is appreciated as always I will take the information provided and carry out further assessment of the project
  2. tensilecvn

    Welding of Precipitation Hardening Nickel Alloys

    Hi All, I am after advise or pointing in the correct direction of literature regarding the above. We have some nickel alloy parts to be welded and I beleive this is best carried out in the soltion annealed condition. I am trying to understand the best process to carry out after welding, i.e...
  3. tensilecvn

    Etching Alloy 625

    Thanks Edstainless That did the trick[thumbsup2]
  4. tensilecvn

    Etching Alloy 625

    Thanks guys. We have tried the normal etchants we use to no avail. I have found a couple more exotic etchants which we will try. Failing that, we will contact the mill for the inforamtion and try to replicate in-house
  5. tensilecvn

    Etching Alloy 625

    Hi All, I am having issues trying to etch an Alloy 625 sample in the laboratory (sample from a 1.25" Dia bar). The structure reveals quite a lot of what i believe is banding of carbides. I am not sure if this is detrimental or beneficial, as we have good tensile results and a pass on a G28...
  6. tensilecvn

    AC1 and AC3 in AISI410 Material

    Thanks for that metengr[thumbsup2]
  7. tensilecvn

    AC1 and AC3 in AISI410 Material

    Hi All, I am trying to find out the values for the AC1 and AC3 for AISI410 material A formula was submitted on here many years ago, but it was stated not to work for steels with high Cr contents. If someone can point me in the general direction of a reasonably accurate formula or typical...
  8. tensilecvn

    Grain growth in Nickel Alloys

    Thanks for the link metengr
  9. tensilecvn

    Grain growth in Nickel Alloys

    Thanks for your reply ED I think the problem may come from the fact that all the forging was not carried out in one series of operations, and the material was allowed to cool completley before being re-started/heated hence the information on grain growth vs temp/time that I am looking for. The...
  10. tensilecvn

    Grain growth in Nickel Alloys

    Hi All Can someone please offer some advice on the above. I am encountering issues with grain size after forging and heat treatment of nickel alloys, predominantly Alloy 925 and Alloy 718. I am achieving the required grain size at all locations apart from centre (flat bar and round), where I am...
  11. tensilecvn

    Mechanical Testing Direction

    Thanks for the replies so far, very informative. I am testing in acc with ASTM A370 on mainly on nickel alloy products per API 6A 718.
  12. tensilecvn

    Mechanical Testing Direction

    Hi All I am after peoples opinions regarding mechanical testing of metals, specifically with respect to "Transverse" direction. Obvioulsy this means accross the primary grain flow, but my question is, in longitudinally forged bar, both Tangential and Radial directions are across the grain flow...

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