Mohd Nazree Derman
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Preferred name
Mohd Nazree Derman
Official Name
Mohd Nazree , Derman
Alternative Name
Derman, Mohd N.
Derman, Mohd Nazree
Derman, M. Nazree
Derman, M. N.
Derman, Nazree
Main Affiliation
Scopus Author ID
36782092800
Researcher ID
G-4103-2017

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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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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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Synthesis and process evaluation of calcium phosphate coatings depositions on pure magnesium via simple chemical conversion method

2018-12 , Mohd Amin Farhan Zaludin , Zul Azhar Zahid Jamal , Mohd Nazree Derman , Azmi Rahmat , Mohd Zaheruddin Kasmuin

Simple chemical conversion has been employed in order to coat calcium phosphates (CaP) on magnesium (Mg) substrate. The Mg substrates were coated in a primary phosphating bath before secondary treated with an alkaline solution of sodium hydroxide, NaOH. In this paper, the fabrication process of the coatings via simple chemical conversion method were discussed and evaluated in terms of electrochemical, phase analysis, and microstructural aspects. XRD diffractogram confirmed that the primary coating composed of dicalcium phosphate dehydrates (DCPD) and after the secondary treatment, the DCPD transformed into more stable hydroxyapatite, HA. The microstructural observations show that the coating is composed of flower-like shape crystallites. Besides, the potential-time curves of both primary and secondary coated samples suggests that the minimum deposition time for better coverage of the coatings is 30 minutes.

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