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Effects of different metallurgical processing on microstructures and mechanical properties of inconel alloy 783

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Abstract

Different metallurgical processing, including the standard heat treatment, heat treatment without β aging, addition of high amount of Cr, and long-term isothermal exposure, was conducted on superalloy Inconel 783. For these processed materials, the tensile property and hardness at room temperature and stress relaxation behavior at 650 °C were examined. The testing results showed that isothermal exposure and heat treatment without β aging slightly enhanced the yield strength of alloy 783 at room temperature as well as all metallurgical processing in this study produced an identical stress relaxation behavior at 650 °C. The microstructure variation with different processing was analyzed using optical microscope, scanning electron microscopy (SEM), and transmission electron microscopy (TEM).

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Authors and Affiliations

  1. Harry Reid Center for Environmental Studies, University of Nevada, 89154, Las Vegas, NV

    Longzhou Ma

  2. Department of Mechanical and Aerospace Engineering, West Virginia University, 26506, Morgantown, WV

    Keh-Minn Chang

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  1. Longzhou Ma
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  2. Keh-Minn Chang
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Ma, L., Chang, KM. Effects of different metallurgical processing on microstructures and mechanical properties of inconel alloy 783. J. of Materi Eng and Perform 13, 32–38 (2004). https://doi.org/10.1361/10599490417560

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  • DOI: https://doi.org/10.1361/10599490417560

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