Suppression of atmospheric corrosion of brass using volatile inhibitors

Вигдорович, В. И.; Knyazeva, L. G.; Zazulya, Alexander; Prokhorenkov, V. D.; Дорохов, А. В.; Kuznetsova, E. G.; Uryadnikov, A. A.; Goncharova, O. A.

doi:10.3103/s1068367417040164

Cited by 4 publications

(8 citation statements)

References 4 publications

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“…This is typical both in the absence of heightened concentration of corrosion stimulants (CS) CO 2 , H 2 S and NH 3 in the atmosphere of industrial premises as compared with the background and with their separate presence [1][2][3]. At the same time, VICs are able to exert a significant negative impact under similar conditions.…”

Section: Introductionmentioning

confidence: 70%

“…Initially consider the results of gravimetric measurements obtained in the presence of simultaneously CO 2 and NH 3 Corrosion has a pronounced local character with ulcerous formations on the surface of the metal. Data on the protective efficacy of all the VIC studied are shown in Table 1.…”

Section: Carbon Steelmentioning

confidence: 99%

“…At the same time, VICs are able to exert a significant negative impact under similar conditions. In particular, the presence of the volatile inhibitor IFHAN-8 causes intense corrosion cracking of brass L62 [3]. Thus, in each specific case, a complex of studies is required to assess the feasibility of using a particular LIC in specific atmospheric conditions in agricultural premises.…”

Section: Introductionmentioning

confidence: 99%

“…Earlier in a number of works [1][2][3] we showed the high efficiency of volatile inhibitors (VIC) against metal corrosion in conditions of agricultural production. This is typical both in the absence of heightened concentration of corrosion stimulants (CS) CO 2 , H 2 S and NH 3 in the atmosphere of industrial premises as compared with the background and with their separate presence [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The Use of Volatile Inhibitors to Suppress Corrosion of Metals in the Atmosphere of Livestock Buildings

Tsygankov¹

2018

BJSTR

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Section: Introductionmentioning

confidence: 70%

Section: Carbon Steelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Use of Volatile Inhibitors to Suppress Corrosion of Metals in the Atmosphere of Livestock Buildings

Tsygankov¹

2018

BJSTR

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“…Earlier in a number of works [1][2][3] we showed the high efficiency of volatile inhibitors (VIC) against metal corrosion in conditions of agricultural production. This is typical both in the absence of heightened concentration of corrosion stimulants (CS) CO2, H2S and NH3 in the atmosphere of industrial premises as compared with the background and with their separate presence [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

The Use of Volatile Inhibitors to Suppress Corrosion of Metals in the Atmosphere of Livestock Buildings

Tsygankov¹

2018

BJSTR

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Protection of carbon steel against atmospheric corrosion by volatile inhibitors of IFKhAN series at high concentrations of CO2, H2S and NH3

2018

Int. J. Corros. Scale Inhib.

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The protective efficacy of volatile inhibitors (VCI) of IFKhAN-A series (A-8, 112, 114, 118) against atmospheric corrosion of carbon steel St3 was studied at room temperature in air in the presence of corrosion stimulants (CS) at specified concentrations: CO 2 (0.2-0.6) vol.%, H 2 S (10-30) mg/m 3 and NH 3 (20-60) mg/m 3. The relative humidity was 100%. Corrosion tests were carried out in sealed containers of 7 liters in volume (desiccators) in two versions. In one version, only one CS was introduced into the air atmosphere. In the other, two or all three used CS were simultaneously injected into the gas phase. To create equilibrium concentrations of the CS in the air atmosphere, a special technique has been developed. The duration of the corrosion tests was 240-528 hours. Potentiodynamic polarization measurements were performed at a potential sweep rate of 0.66 mV/s immediately after immersing the electrodes in the solution and after 24 to 96 hours of their stay in the corrosive medium (in situ). In the presence of CO 2 in air atmosphere, the protective efficiency of all the VCIs studied is close to 100%. In the presence of NH 3 (20 mg/m 3), it is within 74% (IFKhAN-8) to 21% (IFKhAN-118). In the presence of H 2 S, the protective effect of the VCIs increases again, amounting to 93-97%. In uninhibited systems containing simultaneously two stimulants of corrosion, intense pitting is observed. When CO 2 and NH 3 are introduced simultaneously, the protective effect of the investigated VCIs is in the range of 76-87%, with CO 2 +H 2 S it is 81% (A-112 and 118) to 100% (A-114), and with H 2 S+NH 3 , it is 67-85%. The most effective is IFKhAN-114, which not only reduces the corrosion rate, but also eliminates pitting (CO 2 +NH 3). Introduction of IFKhAN-114 allows one to achieve the protective effect of 95% in the presence of all three CS simultaneously. The corrosion rate of steel in the uninhibited background solution is limited by the cathodic reaction. In the presence of (NH 4) 2 S as an NH 3 and H 2 S reaction

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Suppression of atmospheric corrosion of brass using volatile inhibitors

Cited by 4 publications

References 4 publications

The Use of Volatile Inhibitors to Suppress Corrosion of Metals in the Atmosphere of Livestock Buildings

The Use of Volatile Inhibitors to Suppress Corrosion of Metals in the Atmosphere of Livestock Buildings

The Use of Volatile Inhibitors to Suppress Corrosion of Metals in the Atmosphere of Livestock Buildings

Protection of carbon steel against atmospheric corrosion by volatile inhibitors of IFKhAN series at high concentrations of CO2, H2S and NH3

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