Untitled

Kuznetsov, Yu. I.; Vershok, D. B.

doi:10.1023/a:1009073229745

Cited by 9 publications

(9 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The best results were obtained with the complex of Al 3+ which has the smallest radius and the lowest solubility of hydroxide at elevated temperatures. This also agrees with the beneficial effect of small amounts of lithium nitrate and aluminum added to a solution containing 25 g/l of NH 4 NO 3 , which makes it possible to reduce the oxidizing bath temperature to 70°C [50]. The goal of further studies was to increase the corrosion resistance of the MC through its passivating treatment or to impart superhydrophobic properties to the surface.…”

Section: Goal-oriented Corrosion Inhibitorssupporting

confidence: 66%

Progress in the science of corrosion inhibitors

Kuznetsov

pr.²,

Moscow³

et al. 2015

Int. J. Corros. Scale Inhib.

View full text Add to dashboard Cite

The physicochemical features of corrosion inhibition of metals (alloys) strongly depend on the composition of the corrosive environment, its pH, temperature t, hydrodynamic conditions, the chemical nature of the metal to be protected, and the state of its surface, the presence of oxides, dirt, or corrosion products on it. This "multifactor" nature of corrosion seriously complicates the theoretical choice of an efficient corrosion inhibitor (CI), often requiring careful experimental studies and creating unjustified skepticism about the fundamental character of the physical chemistry area related to the study and development of CIs. Meanwhile, this skepticism can be proved wrong by the progress made over the past quarter century in various subareas. Key words: corrosion inhibitors, adsorption, metal passivation, volatile corrosion inhibitors, migrating inhibitors, local depassivation of metals, protecting coatings. Adsorption of corrosion inhibitors on metals and passivationAdsorption on a protected surface is the first event that often determines CI efficiency. Difficulties of its measurement in situ are caused by dissolution and/or oxidation of the metal substrate with time. The uncertainty in separating the effects of adsorption and changes of the state of the metal surface often does not permit to unambiguously interpret the results obtained, for example, by electrochemical impedance spectroscopy (EIS) or using radioactive tracers. In his first "Inhibitors of corrosion of metals in neutral media" (1953), I.L. Rozenfel'd considered only inorganic CIs. He remained interested in these inhibitors throughout his whole life, so it is not surprising that in his latest book "Corrosion Inhibitors" (1977) he reexamined the interaction of some inorganic CIs, primarily chromate, with the metal at a more modern level, including a quantum-chemical approach. However, studies on the

show abstract

Section: Goal-oriented Corrosion Inhibitorssupporting

confidence: 66%

Progress in the science of corrosion inhibitors

Kuznetsov

pr.²,

Moscow³

et al. 2015

Int. J. Corros. Scale Inhib.

View full text Add to dashboard Cite

show abstract

“…Recently, osmophilic micromycetes of the genus Wallemia and halophilic black yeast have been isolated from salterns [66,67]. Obligatory halophilic fungi from the order Thraustochytriales-Thraustochytrium pachydermum and Schizochytrium aggregatum were discovered in winter pools that are created by the application of crystalline salt (of various origins) to roads and sidewalks in order to melt ice [68]. Among the microorganisms cultivated from a Vestfold Hills hypersaline lake were one species of extremely halophilic archaea and one halophilic alga.…”

Section: Discussionmentioning

confidence: 99%

Biodiversity of cryopegs in permafrost

Gilichinsky

Rivkina

Bakermans

et al. 2005

FEMS Microbiology Ecology

185

View full text Add to dashboard Cite

This study describes the biodiversity of the indigenous microbial community in the sodium-chloride water brines (cryopegs) derived from ancient marine sediments and sandwiched within permafrost 100-120,000 years ago after the Arctic Ocean regression. Cryopegs remain liquid at the in situ temperature of -9 to -11 degrees C and make up the only habitat on the Earth that is characterized by permanently subzero temperatures, high salinity, and the absence of external influence during geological time. From these cryopegs, anaerobic and aerobic, spore-less and spore-forming, halotolerant and halophilic, psychrophilic and psychrotrophic bacteria, mycelial fungi and yeast were isolated and their activity was detected below 0 degrees C.

show abstract

“…However, the precipitation mechanism of MC formation on steel is not the only one possible. Magnetite formation may be also realized in the course of a direct electrochemical reaction taking place upon the alkalizing of the solution near-surface layer [5,6].…”

Section: Resultsmentioning

confidence: 99%

“…The traditional technique for the realization of the process of "steel blueing" stipulates the application of strong alkali solutions and high temperatures t = 130-165 ° C. However, in recent years, a technology for obtaining MC in less severe conditions has been developed which allows the application of neutral and subacid oxidizing nitrate solutions at low temperatures ( t < 100 ° C). The introduction of some additives into these solutions contributes to the improvement of MC quality, increases their thickness, and decreases structural defects [4][5][6]. Nevertheless, it is clear that, for obtaining qualitative coatings, a more sophisticated understanding of the oxidation process in nitrate solutions at the initial stages of MC formation is required.…”

mentioning

confidence: 99%

On the formation of magnetite coatings on low-carbon steel in ammonium nitrate solution

et al. 2008

Self Cite

View full text Add to dashboard Cite

Initial stages of the formation of magnetite coating (MC) on low-carbon steel in ammonium nitrate solution at a temperature of 98 ° C is studied by atomic force microscopy. Analyzing the results obtained by flicker-noise spectroscopy allows the degree of continuity and structuring of MC to be estimated. It is shown that the formation of magnetite nuclei in the course of direct electrochemical reaction may take place in the first minutes of oxidation; continuous coating is formed in10-15 min.

show abstract

Untitled

Cited by 9 publications

References 7 publications

Progress in the science of corrosion inhibitors

Progress in the science of corrosion inhibitors

Biodiversity of cryopegs in permafrost

On the formation of magnetite coatings on low-carbon steel in ammonium nitrate solution

Contact Info

Product

Resources

About