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Corrosion behavior of powder metallurgy Y2O3 dispersed iron-and nickel-base superalloys

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Abstract

The room-temperature corrosion behavior of iron-base MA956 and nickel-base MA754 superalloys was investigated in H2SO4 (0.1 to 5 N) and 0.6 N NaCl solutions using the potentiodynamic polarization technique. The study also includes x-ray diffraction and scanning electron microscopy (SEM) of the asreceived and corroded surfaces. Both the alloys show good corrosion resistance to H2SO4. In the 0.6 N NaCl solution, the nickel-base superalloy MA754 was found to be more corrosion resistant as compared to the iron-base superalloy MA956.

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Authors and Affiliations

  1. Department of Materials and Metallurgical Engineering, Indian Institute of Technology, 208 016, Kanpur, India

    M. Debata & G. S. Upadhyaya

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  1. M. Debata
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  2. G. S. Upadhyaya
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Debata, M., Upadhyaya, G.S. Corrosion behavior of powder metallurgy Y2O3 dispersed iron-and nickel-base superalloys. J. of Materi Eng and Perform 10, 602–607 (2001). https://doi.org/10.1361/105994901770344764

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  • DOI: https://doi.org/10.1361/105994901770344764

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