Shaiful Rizam Shamsudin
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Preferred name
Shaiful Rizam Shamsudin
Official Name
Shaiful Rizam, Shamsudin
Alternative Name
Shamsudin, Saiful Rizam
Shamsudin, S. R.
Main Affiliation
Scopus Author ID
57923516300
Researcher ID
AFZ-3675-2022

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Determination of Protective Potential in the Zero Charge Corrosion Protection System

2020-11-24 , Shaiful Rizam Shamsudin , Wardan Rajaselan , Azmi Rahmat , Mohd Nazree Derman , Mohd Nazree Derman , Mohd Fitri M.W.

Zero charge corrosion protection, ZCCP, is a new invention in the field of corrosion protection. It applies alternating current, AC, mode while the protective potential to ensure that the metal exposed in the corrosive environment still does not exist in any of the previous works of literature. The study was conducted by the voltage scanning within corrosion potential, Ecorr, and polarized potential, Eimpressed, using potentiostat. It was carried out by examining the behavior of the current flow in the circuit. The experimental results found that the protective potential for maximum protection in the ZCCP system is 0 mV. By keeping the AC metal potential at 0 mV, the surface will not acquire any charges, hence the corrosion reaction will be inhibited.

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Effect of Pulse Frequencies on Low Carbon Steel in 3.5 wt% NaCl Solution under Zero Charge Corrosion Protection

2020-11-24 , Wardan R. , Shaiful Rizam Shamsudin , Sanusi M.S. , Mohd Fitri M. W.

Zero charge corrosion protection (ZCCP) is an alternative to the existing cathodic protection methods. It applies a current/voltage pulse with a certain particular frequency to attain a potential of zero charge (Epzc) on the electrode-electrolyte interface. A study on the pulse frequencies of ZCCP system on low-carbon steel in 3.5 % NaCl Na solution was carried out for 14 days. The pulse frequencies are varied from 4, 20, 50 and 100 Hz. The ability of these frequencies in protecting samples is determined by means of corrosion rate based on weight loss analysis and surface morphology. Experimental observations indicate that low carbon steel corrosion protection is strongly influenced by changes in pulse frequency. Corrosion rates were found to gradually decrease as pulse frequency increased from 4, 20 to 50 Hz, nevertheless at higher frequencies (100 Hz), corrosion protection was observed to be less effective where the corrosion rate dramatically grew up. The surface morphology of the steel surface is smooth and protected at a pulse frequency of 50 Hz. This indicates that the current / voltage pulse of ZCCP system only requires 50 Hz which is equivalent to a standard AC power frequency applied in most countries including Malaysia.

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The efficiency of Zero Charge Corrosion Protection on pure Mg by Planned Interval Test

2020-11-24 , Shaiful Rizam Shamsudin , Sanusi M.S. , Wardan R. , Azmi Rahmat , Mohd Nazree Derman

The concept of zero charge potential (Epzc) is manipulated to eliminates the effect of the electric double layer in order to mitigate the corrosion reactions through the zero-charge corrosion protection (ZCCP) method. The efficiency of the ZCCP method was examined by planned intervals test on pure Mg metal in 3.5% NaCl solution. The test results showed that the tendency of both liquid corrosiveness and metal corrodibility are decreased from -1562.7mm/yr (Eocp) to -98.2mm/yr (Epzc). ZCCP technique was succeeded by corrosion protection efficiency of pure Mg which was recorded between 93 to 96% in 3.5%) NaCl solution.

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