Effect of temperature on the corrosion behaviour of mild steel upon exposure to palm biodiesel

The inhibition and the effect of temperature and concentration of trans-4-hydroxy-4′-stilbazole on the corrosion of mild steel in 1 M HCl solution was investigated by weight loss experiments at temperatures ranging from 303 to 343 K. The studied inhibitor concentrations were between M and M. The percentage inhibition increased with the increase of the concentration of the inhibitor. The percentage inhibition reached about 94% at the concentration of M and 303 K. On the other hand, the percentage inhibition decreased with the increase of temperature. Using the Temkin adsorption isotherm, the thermodynamic parameters for the adsorption of this inhibitor on the metal surface were calculated. Trans-4-hydroxy-4′-stilbazole was found to be a potential corrosion inhibitor since it contained not only nitrogen and oxygen, but also phenyl and pyridine rings that are joined together with a double bond (–C=C–) in conjugation with these rings.

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Corrosion Behaviour of 316L Stainless Steel in CNTs–Water Nanofluid: Effect of Temperature

Materials ◽

10.3390/ma14010119 ◽

2020 ◽

Vol 14 (1) ◽

pp. 119

Author(s):

Dana H. Abdeen ◽

Muataz A. Atieh ◽

Belabbes Merzougui

Keyword(s):

Stainless Steel ◽

316L Stainless Steel ◽

Corrosion Behaviour ◽

Gum Arabic ◽

Steel Sample ◽

Open Circuit ◽

Deionized Water ◽

Effect Of Temperature ◽

Different Temperatures ◽

In Series

The inhibition behavior of carbon nanotubes (CNTs) and Gum Arabic (GA) on the corrosion of 316L stainless steel in CNTs–water nanofluid under the effect of different temperatures was investigated by electrochemical methods and surface analysis techniques. Thereby, 316L stainless steel samples were exposed to CNTs–water nanofluid under temperatures of 22, 40, 60 and 80 °C. Two concentrations of the CNTs (0.1 and 1.0 wt.% CNTs) were homogenously dispersed in deionized water using the surfactant GA and tested using three corrosion tests conducted in series: open circuit test, polarization resistance test, and potentiodynamic scans. These tests were also conducted on the same steel but in solutions of GA-deionized water only. Tests revealed that corrosion increases with temperature and concentration of the CNTs–water nanofluids, having the highest corrosion rate of 32.66 milli-mpy (milli-mil per year) for the 1.0 wt.% CNT nanofluid at 80 °C. In addition, SEM observations showed pits formation around areas of accumulated CNTs that added extra roughness to the steel sample. The activation energy analysis and optical surface observations have revealed that CNTs can desorb at higher temperatures, which makes the surface more vulnerable to corrosion attack.

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Corrosion Behaviour of Metals in Artificial Tear Solution

JOURNAL OF ADVANCES IN CHEMISTRY ◽

10.24297/jac.v8i3.4051 ◽

2016 ◽

Vol 8 (3) ◽

pp. 1716-1735

Author(s):

C. Kumar ◽

A. John Amal Raj ◽

S.K. Selvaraj

Keyword(s):

Corrosion Resistance ◽

Mild Steel ◽

Corrosion Behaviour ◽

Ac Impedance ◽

Impedance Spectra ◽

Artificial Tear ◽

Polarization Study ◽

Ac Impedance Spectra

Human tear comes in contact with a number of instruments during operation in the eyes. This results in a variety of undesirable effects such as corrosion and malfunction. Corrosion behaviour of five metals, namely, mild steel (MS), mild steel coated with zinc (MS-Zn), Ni-Cr, Ni-Ti super elastic (Ni-Ti.SE), and SS 316 L in artificial tear solution has been studied by polarization study and AC impedance spectra. The study reveals that the decreasing order of corrosion resistance in artificial tear solution is : Ni-Ti SE > Ni-Cr > SS 316 L > MS-Zn > MS. The first three metals are better candidates and the first one is the best candidate for making instruments used in operation in the eyes, in presence of tears.

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The corrosion behaviour of mild steel and type 304 stainless steel in media from an anaerobic biodigestor

International Biodeterioration & Biodegradation ◽

10.1016/s0964-8305(96)00019-4 ◽

1996 ◽

Vol 37 (3-4) ◽

pp. 173-180 ◽

Cited By ~ 11

Author(s):

Gelsa Edith Englert ◽

Iduvirges Lourdes Müller

Keyword(s):

Stainless Steel ◽

Mild Steel ◽

Corrosion Behaviour ◽

304 Stainless Steel ◽

Type 304 ◽

Type 304 Stainless Steel

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General properties and comparison of the corrosion inhibition efficiencies of the triazole derivatives for mild steel

Corrosion Reviews ◽

10.1515/corrrev-2018-0006 ◽

2018 ◽

Vol 36 (6) ◽

pp. 507-545 ◽

Cited By ~ 10

Author(s):

Muhammad Faisal ◽

Aamer Saeed ◽

Danish Shahzad ◽

Nadir Abbas ◽

Fayaz Ali Larik ◽

...

Keyword(s):

Cost Effectiveness ◽

Mild Steel ◽

Corrosion Inhibitors ◽

Mechanisms Of Action ◽

Effect Of Temperature ◽

General Effect ◽

Acidic Media ◽

Triazole Derivatives ◽

Concentration Time ◽

Acidic Conditions

AbstractMild steel (MS) corrosion is a worldwide issue that greatly affects the industrial and natural environment. To extend the lifespan of appliances, the control of MS corrosion is necessary. To shield MS from corrosion, specifically from acidic conditions, one of the practical and finest approaches is the application of inhibitors. Triazole derivatives are eco-friendly corrosion inhibitors (CIs) having inconsequential toxicities, excellent inhibition efficiencies (IEs) against corrosion of MS, and extremely high cost-effectiveness. This critical review discusses the general effect of temperature, concentration, time after the application of CI, and type of acid on the IE of triazole derivatives. Further, the review provides an adequate amount of information about the features of excellent CIs; a summary of the reported properties of triazole-based inhibitors, CIs in industries, and current requirements of industries; and recommendations and implications for researchers to improve IE. Additionally, the review also illustrates the mechanisms of action and the IEs, which are evaluated from potentiodynamic polarization parameters, in various acidic media and concentrations of triazole inhibitors. By IE correlation with numerous concentrations and acidic conditions, this review is advantageous and helpful for synthetic chemists to expand the diversity and complexity of a class of triazole derivatives by synthesizing new triazole derivatives.

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