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Journal of Materials Engineering and Performance

, Volume 10, Issue 5, pp 602–607 | Cite as

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

  • M. Debata
  • G. S. Upadhyaya
Article

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.

Keywords

mechanical alloying pitting corrosion potentiodynamic polarization 

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References

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Copyright information

© ASM International 2001

Authors and Affiliations

  • M. Debata
    • 1
  • G. S. Upadhyaya
    • 1
  1. 1.Department of Materials and Metallurgical EngineeringIndian Institute of TechnologyKanpurIndia

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