Showing papers in "Corrosion Science in 2006"

TL;DR: In this paper, 4-MOX was used as a corrosion inhibitor for mild steel in sulfuric acid media and its efficiency attains more than 96.19% at 8 × 10 −4 4 ǫ at 333 K. The inhibition was assumed to occur via adsorption of the oxadiazole molecules on the metal surface.

TL;DR: In this paper, the effect of Chamomile (Chamaemelum mixtum L.), Halfabar (Cymbopogon proximus), Black cumin (Nigella sativa L.), and Kidney bean (Phaseolus vulgaris L.) plants on the corrosion of steel in aqueous 1-M sulphuric acid were investigated by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques.

TL;DR: The compositional change of rust (corrosion products) layer formed on weathering steel exposed to atmosphere with different amount of air-borne sea salt particles in Japan have been investigated by the X-ray diffraction method as mentioned in this paper.

TL;DR: In this article, a comparison was made between three API grade pipeline steels (X60, X80 and the X100 grade) from the point of view of their susceptibility to hydrogen embrittlement.

TL;DR: In this article, it was determined that Al7Cu2Fe may serve as a local cathode in the evolution of localized corrosion of AA7075-T651 and is capable of sustaining oxygen reduction reactions at rates of several hundreds of μA/cm2 over a range of potentials typical of the open circuit potential (OCP) in NaCl solution of various concentrations and pH.

TL;DR: In this paper, the short term (∼100h) oxidation behavior of 9%Cr steel P91 was studied at 650°C in N 2 -O 2 -H 2 O gas mixtures containing a relatively low oxygen level of 1%.

TL;DR: In this article, an attempt is made to introduce a new parameter that could be easily extracted with no error in calculation, theta at high frequencies has very good agreement with other extracted parameters.

TL;DR: In this article, five heterocyclic compounds, having a five atom ring, fused with the benzene ring (indole, benzimidazole, benotriazoles, benzothiazole, and benzothiadiazole) were investigated as corrosion inhibitors of mild steel in 1 N HCl using impedance and polarisation resistance methods.

TL;DR: Amino-5-ethyl-1,3,4-thiadiazole (AETDA) has been evaluated as a corrosion inhibitor for cop- per in 3.0% NaCl solutions using weight loss, pH, potentiodynamic polarization, and potentiostatic cur- rent-time, and electrochemical impedance spectroscopic (EIS) measurements as mentioned in this paper.

TL;DR: In this paper, the effect of molybdate and tungstate on the corrosion of cold rolling steel (CRS) in hydrochloric acid solution (0.1-0.5 m) was investigated by weight loss and electrochemistry methods.

TL;DR: In this paper, an AISI 410 martensitic stainless steel was plasma nitrided at a temperature of 420°C, 460°C or 500°C for 20h.

TL;DR: In this article, the alpha-magnesium phase has been synthesized from pure components by controlled solidification procedures using different electroconductivity properties. But the phase was not studied using electromagnetic sensors.

TL;DR: In this paper, double loop electrochemical potentiokinetic reactivation (DLEPR) test was applied to determine the degree of sensitization in 316L type stainless steel, where obtained results were correlated with revealed microstructures after oxalic acid test and weight loss measurements of Streicher and Huey acid tests.

TL;DR: In this article, the effect of heat treatment on the corrosion behavior of binary Al-Fe alloys containing iron at levels between 0.04 and 0.42% was investigated by electrochemical measurements in both acidic and alkaline chloride solutions.

TL;DR: In this paper, the effect of surface treatment on the electrochemical behavior of Ti-alloys was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques.

TL;DR: In this paper, S-containing compounds newly synthesized have been tested as inhibitors for the corrosion of steel in 1-M HCl solution using weight loss measurements, potentiodynamic polarisation and impedance spectroscopy (EIS) methods.

TL;DR: In this article, the title compound (PyS) 2 has been synthesized and its inhibiting action on the corrosion of mild steel in 1-5m H 2 SO 4 solutions at 35-50m C has been investigated by polarization resistance (R p ), polarization curves and electrochemical impedance spectroscopy (EIS).

TL;DR: In this paper, the effect of artificial aging parameters on the corrosion performance of air cooled AlMgSi(Cu) model alloy extrusions was investigated, and the results showed that IGC susceptibility was reduced, and finally eliminated, by artificial aging.

TL;DR: In this paper, the corrosion behavior of steel in 2M HCl solution has been studied using weight loss, polarization and electrochemical impedance spectroscopy (EIS) techniques.

TL;DR: In this article, the conditions for the formation of external alumina scales on binary Fe-Al alloys and the nature of the third-element effect due to chromium additions have been investigated by studying the oxidation at 1000 degrees C in 1 atm O-2.

TL;DR: In this paper, the effect of 2,5-bis(4-pyridyl)-1,3,4-thiadiazole (4-PTH) on the corrosion of mild steel in acidic media (1 M HCl, 0.5 M H2SO4, 1 M HCLO4) has been investigated using weight loss measurements, electrochemical impedance spectroscopy and potentiodynamic polarisation.

TL;DR: In this article, the results relative to glow-discharge nitriding treatments carried out on AISI 316L austenitic stainless steel samples at temperatures ranging from 673 to 773 K are reported.

TL;DR: In this paper, the anticorrosive performance of zinc chromate and zinc phosphate, used as extracts in 0.1 M NaCl, was studied using electrochemical impedance spectroscopy (EIS), the scanning vibrating electrode technique (SVET) and open circuit potential (OCP) measurements.

TL;DR: In this article, the corrosion behavior of a ferritic-martensitic steel T91 exposed to supercritical water at 500 ÂC and at two different dissolved oxygen concentrations, 25 Â ppb and 2 Â pm, for exposure times up to 505 Â h was characterized.

TL;DR: In this article, the effect of three Schiff base compounds namely, (E )-2-(1-(2-(2-hydroxyethylamino)ethylimino)ethyl)phenol(I), 2,2′-(1 E, 1′ E )-1,1′-(2, 2′-azanediylbis(ethane-2,1-diyl)bis(azan-1-yl- 1-ylidene))bis(ETHan- 1yl-1]-diphenol(II) and 2, 2

TL;DR: In this article, the results of atmospheric corrosion testing and of an examination of patina samples from Brisbane, Denmark, Sweden, France, USA and Austria were presented, with the aim of determining the structure of natural patinas and to relate their structure to their appearance in service and to the atmospheric corrosion of copper.

TL;DR: In this paper, the thickness, chemical composition and microstructure of anodised coatings formed on magnesium alloy AZ91D at various anodising current densities were measured.

TL;DR: In this paper, the effect of heat treatments on tensile strength and stress corrosion cracking (SCC) resistance of AA7050 in 3.5% NaCl solution at pH 12 has been investigated using constant extension rate tester (CERT).

TL;DR: In this article, a 904L austenitic stainless steel with a critical pitting temperature (CPT) of 56 C was polarized at 750 mV (Ag/AgCl) in 1 M NaCl at 45, 49 and 54 C.

TL;DR: In this paper, the influence of geometric factors on the galvanic current density distribution for AZ91D coupled to steel was investigated using experimental measurements and a BEM model using geometric factors such as area ratio of anode/cathode, insulation distance between anode and cathode, depth of solution film, and the manner of interaction caused by two independent interacting galvanic couples.