- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Anodic Polarization of Mild Steel in Saturated Ca(OH)2 Contaminated with NaCL in Presence of NaNO2 | ||
| Iraqi Journal of Chemical and Petroleum Engineering | ||
| Article 1, Volume 8, Issue 2, 2007, Pages 39-42 | ||
| Authors | ||
| Hany S. Hassan; Aprael S. Yaro | ||
| Abstract | ||
| The corrosion behavior of mild steel in saturated aerated and dc-aerated Ca(OH)2 solution was investigated using electrochemical measurements. The work was carried out with small coupons immersed in soIw ions containing dWèrent quantities of MaC in presence of various NaNO concentrations w corrosion inhibitors. It has been found that:(I) In presence of NaCI the time required to reach °2 evolution potential in dc-aerated Ca(0h9 polarized at lOpA/cm is function of inhibitor concentration and it becomes lass as NaNO increases compared with zero presence indicating the effectiveness of PIaNO as anodic corrosion inhibitor. (2) In absence of NaC1, the time required to reach 01 evolution potential in de solutions is less that in aerated solutions when inhibitor increases from 0 to 0.3 wt%. (3) In presence of sufficient chloride in dc-aerated Ca(OI-i9, solution, the passive film m broken down locally. | ||
| Keywords | ||
| anodic polarization; alkaline solution; galvanostatic technique; evolution potential | ||
|
Statistics Article View: 129 PDF Download: 47 |
||