Abstract
The corrosion inhibition behavior of bulk nanocrystalline ingot iron (BNII) fabricated from coarse polycrystalline ingot iron (CPII) by severe rolling technique by polyacrylic acid (PAA) was studied in 0.1M H2SO4 using electrochemical impedance spectroscopy and potentiodynamic polarization techniques. The results indicated that PAA inhibited the acid induced corrosion of both iron specimens, with greater effect noted for BNII. The corrosion inhibiting effect was influenced by the microstructure of the iron samples. Synergistic inhibition effect was observed on addition of iodide ions to PAA in case of CPII while for BNII inhibition efficiency marginally increased.
| Original language | English |
|---|---|
| Pages (from-to) | 1778-1785 |
| Number of pages | 8 |
| Journal | Corrosion Science |
| Volume | 53 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2011 |
| Externally published | Yes |
Bibliographical note
Funding Information:S.A Umoren is grateful to the Chinese Academy of Sciences (CAS) and Academy of Sciences for the Developing World (TWAS) for the CAS-TWAS Postdoctoral Fellowship.
Keywords
- A. Iron
- A. Polyacrylic acid
- C. Corrosion inhibition
- C. Microstructures
- C. Nanocrystallization
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- General Materials Science
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