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

Authors
Debata, M Upadhyaya, GS
Citation
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
Citations number
5
Categorie Soggetti
Material Science & Engineering
Journal title
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN journal
10599495 → ACNP
Volume
10
Issue
5
Year of publication
2001
Pages
602 - 607
Database
ISI
SICI code
1059-9495(200110)10:5<602:CBOPMY>2.0.ZU;2-C
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 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.