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  • Users: ebuntario
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  1. ebuntario

    Microhardness & Cooling Rate

    I've welded an IN-792 with an IN-625. I tried 3 type of preheating before welding. 1st preheated to 200 celcius, 2nd preheated to 400 celcius and 3rd preheated to 400 celcius. After done welding it, I did a vickers microhardness test on the fusion line/HAZ. The results was a decrease of hardness...
  2. ebuntario

    Cast vs Wrought Superalloy

    What is the difference between Cast and Wrought on a Nickel-base Superalloy? I read on "Superalloy: The Technical Guide" by Michael J. Donachie stating that "the highest creep-rupture strength at elevated temperatures can be achieved in nickel-base superalloy castings for high-stress...

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