Al-Negheimish, Abdulaziz and Alhozaimy, Abdulrahman and Hussain, Raja Rizwan and Al-Zaid, Rajeh and Singh, J K and Singh, D D N (2014) Role of Manganese Sulfide Inclusions in Steel Rebar in the Formation and Breakdown of Passive Films in Concrete Pore Solutions. Corrosion, 70(1) (IF-2.908). pp. 74-86.
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Abstract
This study examined manganese sulfide (MnS) inclusions in steel rebar exposed to a simulated concrete pore solution to understand their role in passive film, corrosion, and pit propagation behavior. The passive film was characterized using x-ray photoelectron spectroscopy, Raman spectroscopy, scanning electron microscopy, and electrochemical techniques. The results showed that MnS inclusions adversely affected the nature of the passive film and accelerated corrosion and pit formation. A schematic model was developed to explain the deterioration of passive film formed on steel containing MnS inclusions, and was validated by Raman spectroscopy of the resulting rust formed on such steel.
| Item Type: | Article |
|---|---|
| Official URL/DOI: | http://dx.doi.org/10.5006/0941 |
| Uncontrolled Keywords: | concrete, electrochemical impedance spectros- copy, passivity, Raman spectroscopy, steel-reinforced con- crete, x-ray photoelectron spectroscopy |
| Divisions: | Corrosion and Surface Engineering |
| ID Code: | 6835 |
| Deposited By: | Dr. A K Sahu |
| Deposited On: | 19 Feb 2014 18:05 |
| Last Modified: | 04 May 2016 16:41 |
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