Showing papers in "Corrosion Science in 2009"

TL;DR: In this article, the inhibition ability of benzimidazole and its derivatives against the corrosion of mild steel in 1M HCl solution was studied, and the change of impedance parameters observed by variation of inhibitors concentration within the range of 50-250ppm was an indication of their adsorption.

TL;DR: In this paper, the effect of henna extract (Lawsonia inermis) and its main constituents (lawsone, gallic acid, α-d -Glucose and tannic acid) on corrosion of mild steel in 1M HCl solution was investigated through electrochemical techniques and surface analysis (SEM/EDS).

TL;DR: In this paper, the effect of Justicia gendarussa extract (JGPE) on mild steel in 1-M HCl medium has been investigated by weight loss and electrochemical techniques.

TL;DR: In this paper, the inhibitor effect of the naturally occurring biological molecule caffeic acid on the corrosion of mild steel in 0.1 M H2SO4 was investigated by weight loss, potentiodynamic polarization, electrochemical impedance and Raman spectroscopy.

TL;DR: In this article, the corrosion mechanism of Mg-8Li alloy in NaCl solution was investigated by electrochemical testing and SEM observation, and the electrochemical results indicated that the corrosion resistance in 0.1 M NaCl mixture gradually deteriorated with increasing of immersion time expect for 2 h immersion, which was consistent with the SEM observation of corrosion morphology.

TL;DR: In this paper, the corrosion of commercial die-cast Mg-Al alloys was elucidated by a study, of the corrosion in 3% NaCl, of (i) high-pressure diecast (HPDC) model Mg alloys, (ii) low-purity Mg, (iii) high purity (HP) Mg and (iv) HP Mg heat treated at 550°C.

TL;DR: In this article, the effect of charging current on the potentiodynamic polarization curve that is obtained to determine the Tafel slopes and corrosion current density are reported in Ti6Al4V in naturally aerated 3.5% NaCl solution.

TL;DR: In this paper, the performance of the 3,5-bis(4-methoxyphenyl)-4methoxide-4amino-1,2,4-triazole (4-MAT) on mild steel in normal hydrochloric acid medium (1M HCl) at 30°C was tested by weight loss, potentiodynamic polarisation and electrochemical impedance spectroscopy (EIS) techniques.

TL;DR: Li et al. as mentioned in this paper proposed a method to improve the performance of state-of-the-art Corros & Protect (C&P) in Chinese Academia by using an Inst Met Res (IMR) and State Key Lab Corros and Protect (SCLP).

TL;DR: In this paper, quantum chemical calculations using the density functional theory (DFT) and some semi-empirical methods were performed on four sulphonamides (sulfaguanidine, sulfamide, sulfamethazine and sulfamide) used as corrosion inhibitors for mild steel in acidic medium to determine the relationship between molecular structure and their inhibition efficiencies.

TL;DR: In this article, the inhibitive capabilities of Clotrimazole and Fluconazole (FLC) on the electrochemical corrosion of aluminium in 0.1 M HCl solution has been studied using weight loss measurements at 30 and 50 °C.

TL;DR: In this paper, a mixed-inhibition mechanism was proposed for the inhibitive effects of 2-undecyl-1ethylamino-1methylbenzyl quaternary imidazoline (2UMQI) and KI on mild steel in 1.0 M H(2)SO(4) solutions.

TL;DR: In this article, the effect of temperature on the efficiency of the corrosion inhibition process was studied and the values of activation energy, preexponential factor (λ ), enthalpy of activation and entropy of activation were calculated to elaborate the mechanism of corrosion inhibition.

TL;DR: In this paper, the corrosion inhibition properties of 3-amino-5-methylmercapto-1,2,4-triazole (3-AMTA), 2-aminobenzimidazole(2-ABA), 5-(p-tolyl)-1,3, 4-triaxile (TTA), 3-AMINO-5 methylmercaptoxide (3AMTA) and 2-ammino-4-thiadiazole (2-ATDA) as corrosion inhibitors on steel in sodium chloride media

TL;DR: In this paper, the long-term behavior of steels in liquid lead and lead-bismuth is analyzed by using a corrosion model in which the oxidation and scale removal are coupled.

TL;DR: In this paper, the oxo-triazole derivative (DTP) was synthesized and its inhibiting action on the corrosion of mild steel in sulphuric acid was investigated by means of weight loss, potentiodynamic polarization, EIS and SEM.

TL;DR: In this article, a discrete effort towards revealing the electrochemical effect of carefully controlled binary alloying additions to magnesium in order to elucidate the microstructure-corrosion relationship more generally for HPDC Mg alloys was made.

TL;DR: In this article, the inhibition effect of Bis (benzimidazol-2-yl) disulphide (BIMDS) on corrosion behavior of mild steel (MS) in 1.0 and 0.5 M H 2 SO 4 was studied using different techniques.

TL;DR: In this paper, the corrosion inhibition characteristics of the synthesized cationic gemini surfactants, namely bis( p -( N, N, N -decyldimethylammonium bromide)benzylidene thiourea (10-S-10), bis(p -(N, N, n -dodecyldimenethylammium Bromide), 12S-12S-11, 14S-14, and 14-S -14, were investigated at 25°C by weight loss,

TL;DR: In this article, the corrosion inhibition and adsorption behavior of 2-undecyl-1-ethylamino imidazoline (2UEI) on N80 mild steel in CO2-saturated 3% NaCl solutions was investigated using potentiodynamic polarization, electrochemical impedance spectroscopy techniques and SEM observation.

TL;DR: In this article, a new AM60-RE (RE = Ce or La) alloy was prepared and its corrosion behavior was evaluated by hydrogen evolution and electrochemical methods, and the corrosion resistance of AM60 alloy improved with addition of RE, and this improvement could attribute to depression of the micro-galvanic couples.

TL;DR: In this article, a systematic investigation was carried out to understand the corrosion of common Mg alloys (Pure Mg, AZ31, AZ91, AM30, AM60, ZE41) exposed to interrupted salt spray.

TL;DR: In this paper, an XPS investigation was carried out of the surface films, formed by exposure to ultrapure water, on mechanically ground Mg and the two Mg-Al intermetallic compounds: Al3Mg2 and Mg17Al12.

TL;DR: In this article, two types of PEO coatings were produced on AM50 magnesium alloy using pulsed DC plasma electrolytic oxidation process in an alkaline phosphate and acidic fluozirconate electrolytes, respectively.

TL;DR: In this paper, the effect of iodide ions on the inhibitive performance of 2,3-diaminonaphthalene in 1-M HCl for aluminium corrosion has been studied using hydrogen evolution (gasometry) measurements at 30 and 40°C.

TL;DR: In this paper, the oxidation mechanism of ZrB 2 -SiC composites was investigated based on a combination of theory and experiments and a good correspondence was obtained between theoretical predictions and experimental results.

TL;DR: In this article, the corrosion resistance of Ti and Ti-6Al-4V was investigated through electrochemical impedance spectroscopy, EIS, potentiodynamic polarisation curves and UV-Vis spectrophotometry.

TL;DR: In this article, the corrosion inhibitive role of Mg in Zn-Mg coatings is considered for different stages of corrosion and the importance of the ageing and the role of atmospheric CO2 on the nature and morphology of the corrosion products are discussed.

TL;DR: In this paper, hybrid organic-inorganic sol-gel-matrices, with up to 20% incorporated ceria nanoparticles, have been employed as coatings for an AA2024-T3 aluminium alloy.