نتایج جستجو برای: corrosion inhibitor

تعداد نتایج: 241084  

2015
I. Jevremović M. Singer M. Achour V. Mišković - Stanković S. Nešić

Innovative top-of-the-line corrosion (TLC) inhibition techniques are being investigated as an alternative to batch treatment. A novel idea consists of injecting the corrosion inhibitor within a foam matrix. Previously, a “proof of concept” validation of the novel TLC mitigation method was successfully conducted in a small-scale laboratory setup. The findings in this paper present the next step ...

2013
Sutiana Junaedi Ahmed A. Al-Amiery Abdulhadi Kadihum Abdul Amir H. Kadhum Abu Bakar Mohamad

1,5-Dimethyl-4-((2-methylbenzylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-one (DMPO) was synthesized to be evaluated as a corrosion inhibitor. The corrosion inhibitory effects of DMPO on mild steel in 1.0 M HCl were investigated using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, open circuit potential (OCP) and electrochemical frequency modulation (EFM). The results s...

Journal: :journal of physical & theoretical chemistry 2012
m. shahidi e. sasaei m. ganjehkaviri m.r. gholamhosseinzadeh

vanillin offers interesting possibilities for corrosion inhibition because of its safe use and highsolubility in water. the effect of vanillin on the corrosion inhibition of aisi 304 stainless steel in0.5m h2so4 solution has been studied using potentiodynamic polarization and electrochemicalimpedance spectroscopy (eis). furthermore, this paper demonstrates that the electrochemical noise(en) tec...

2014
L. Shi J. Ye C. C. Chen Y. Wu J. Z. Liu

For concrete bridge projects in marine environments, attention must be paid to the reinforcement corrosion problems caused by chloride intrusion. As kinds of functional admixtures, which can reduce the reinforcement corrosion rate, corrosion inhibitors are becoming very popular in China in new bridge projects. Corrosion inhibitors cover both inorganic and organic inhibitors. Nitrite is represen...

Journal: :journal of physical & theoretical chemistry 2004
f. mollaamin m.r gholami h. yoosbashizadeh s.k sadrnezhad

a quantum chemical study of the corrosion inhibition properties of some organic inhibitormolecules, pyridine, 2-picoline, 3-picoline, 4-picoline, 2, 4-lutidine at the aluminum surface inhydrochloric acid (hcl) was carried out. the models of the inhibitors adsorption on the al-surfacewere optimized with the hf and b3lyp level using the 6-31g and lanl2dz basis sets fromthe program package gaussia...

Journal: :CORROSION ENGINEERING DIGEST 1966

To avoid the secondary pollution that inorganic corrosion inhibitor may cause in circulating cooling water, the bio-corrosion inhibition effect of lysozyme, catalase, lipase, and laccase, as the biologic inhibitors without the above problem, and the increased bio-corrosion inhibition effect of Ca+2 and Mg+2 are studied. An enzyme with corrosion properties was selected by rotary coupon test. The...

2008
N. H. Helal Abd El-Hafez W. A. Badawy

The corrosion and corrosion inhibition of lead in aqueous solutions with different pHs (2, 7 and 12) were investigated. The corrosion rate was alculated in the absence and presence of the corrosion inhibitor using polarization and impedance techniques. Amino acids have been used as nvironmentally safe corrosion inhibitors. The inhibition efficiency of the different amino acids at a concentratio...

2009
Harish Kumar Vishal Saini Dheeraj Kumar

The cooling water chemistry has changed steadily over the past decade. Use of high performance antiscalants, corrosion inhibitors, polymer for better dispersion, total prevention of microbial deposits by using powerful biocides and biodispersants, pH boosters and advanced hardness stabilizers is the current practice. But addition of so many different chemicals to the cooling water system (CWS) ...

Journal: :Foristek: Forum Teknik Elektro dan Teknologi Informasi 2022

Effect of NaCl Immersion Media on Corrosion Rate ST 42 Steel in Kepok Banana Peel Inhibitor Extraction. This study aims to determine the corrosion rate steel using an inhibitor kepok banana peel extraction with various immersion media. Sample time is 168, 336, 504 hours. The method used calculate measure weight loss. sample this research was carried out Mechanical Engineering laboratory, Facult...

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