M. Debata et Gs. Upadhyaya, Corrosion behavior of powder metallurgy Y2O3 dispersed iron-and nickel-base superalloys, J MAT ENG P, 10(5), 2001, pp. 602-607
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 sol
utions using the potentiodynamic polarization technique. The study also inc
ludes x-ray diffraction and scanning electron microscopy (SEM) of the as-re
ceived and corroded surfaces. Both the alloys show good corrosion resistanc
e to H2SO4. In the 0.6 N NaCl solution, the nickel-base superalloy MA754 wa
s found to be more corrosion resistant as compared to the iron-base superal
loy MA956.