The effect of inhibitor on the corrosion of aluminum alloys in acidic solutions

Rosliza, R.; Nik, W.B. Wan; Senin, H. B.

doi:10.1016/j.matchemphys.2007.07.013

Cited by 135 publications

(95 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The samples were mechanically polished with 400, 500 and 600 emery papers and lubricated by using de-ionized water before exposure. The polished samples were cleaned with acetone, washed by using de-ionized water (Rosliza et al 2008;Cho et al 2008) and then dried. Metals were weighted for the original weight (m o ), then immersed and sprayed with test solutions for 100 days after cleaning.…”

Section: Fig 1 Laboratory Experiments a -Immersion Method; B -Spramentioning

confidence: 99%

See 1 more Smart Citation

Experimental Research of Road Maintenance Salts and Molasses ("Safecote") Corrosive Impact on Metals/Kelių Priežiūrai Naudojamų Druskų Ir Melasos („safecote“) Poveikio Metalų Korozijai Eksperimentiniai Tyrimai/ Экспериментальное Исследование Коррозионного Воздействия На Металлы Солей И Мелассы (“Safecote”), Применяемых Для Содержания Дорог

Petkuvienė

Paliulis

2009

Journal of Environmental Engineering and Landscape Management

View full text Add to dashboard Cite

Abstract. The purpose of this investigation is to assess the corrosive impact of de-icing salts and product "Safecote" on metals by performing immersion and spraying experiments. Metallic elements such as metallic bridges, road signs, and cars, situated near the road, are exposed to salts used for road maintenance in winter seasons. The salts, used to de-ice the road surface, can cause metal corrosion. NaCl, CaCl 2 , also mixture of NaCl and CaCl 2 are most commonly used salts in Lithuania. Ions of chloride are the main agents which increase corrosion rate and the metal mass loss. This harmful effect could be mitigated by replacing the salts with organic de-icers, for instance, product "Safecote" based on molasses, which is a by-product of sugar production. The research of mass loss of metals and metal alloys was carried out with the help of two methods -immersion and spraying. In the first case tested metals were dipped into the solutions of NaCl, CaCl 2 , NaCl:CaCl 2 and NaCl:Safecote, in the other -metals were sprayed with solutions of above mentioned metals. Results of the experimental research showed that CaCl 2 has the highest effect on metal corrosion. This solution caused mass loss of galvanized steel 301.71±4.2 mg, and carbon steel -52.27±1.7 mg by immersion method. What is more, aluminium 1.37±0.13 mg, galvanized steel 51.79±0.9 mg, stainless steel 2.11±0.2 mg, and carbon steel 266.58±2.5 mg lost their mass by spraying method. The results of the experiment showed that salts, used for road maintenance in winter seasons, should be mixed with "Safecote", which mitigates corrosion of metals and minimizes their mass loss.

show abstract

Section: Fig 1 Laboratory Experiments a -Immersion Method; B -Spramentioning

confidence: 99%

“…Mass loss (M L ) due to corrosion initiated by winter road maintenance substances, was evaluated by the following formula (Rosliza et al 2008):…”

Section: Fig 1 Laboratory Experiments a -Immersion Method; B -Spramentioning

confidence: 99%

Experimental Research of Road Maintenance Salts and Molasses ("Safecote") Corrosive Impact on Metals/Kelių Priežiūrai Naudojamų Druskų Ir Melasos („safecote“) Poveikio Metalų Korozijai Eksperimentiniai Tyrimai/ Экспериментальное Исследование Коррозионного Воздействия На Металлы Солей И Мелассы (“Safecote”), Применяемых Для Содержания Дорог

Petkuvienė

Paliulis

2009

Journal of Environmental Engineering and Landscape Management

View full text Add to dashboard Cite

show abstract

“…The IE increases with the increasing of the henna extract incorporated into paint. The value of the IE (%) increases due to the adsorption of the inhibitor molecules on the specimen/solution interface where the adsorbed molecules mechanically screen the coated part of the metal surface from the action of the corrodent [21]. For EIS measurements, the percentage of inhibition efficiency was calculated using Rp values through Equation (2):…”

Section: Inhibition Efficiencymentioning

confidence: 99%

Development of anti-corrosive paint incorporated with henna extract as a natural inhibitor

et al. 2017

Self Cite

View full text Add to dashboard Cite

Metallic materials are the most applicable materials in various industries. They are useful due to their excellent mechanical properties. However, they are exposed to corrosion because the environment contains oxygen, humidity and some other factors. This paper describes about a paint incorporated with organic inhibitor, i.e., henna extract. This paint was produced to enhance its anticorrosive property. Henna extract was chosen as the corrosion inhibitor as it is organic, environmentally acceptable, readily available and a renewable source of material for a wide range of corrosion problems. The extractions were characterised by using Fourier Transform Infrared. Meanwhile, the inhibitive action of henna extract was investigated through an electrochemical technique. The inhibitive effects of henna extract were investigated with percentages of 0%, 4%, 8% and 10% incorporated into a rosin (epoxy)-based matrix. The specimens were characterised by electrochemical impedance spectroscopy measurement. The morphology study was investigated through surface analysis by using scanning electron microscopy. The inhibition efficiency increased as the concentration of henna extract was increased. The results showed that Paint 3 has the lowest corrosion rate of 0.001767 mm/yr as compared to Paint 1 with 0.005148 mm/yr. The inhibitive action of the henna extract is discussed. Paint 3 was proposed as the most effective paint that contains a natural inhibitor for aluminium alloy.

show abstract

“…Lower values of the energy gap will render good inhibition, because the energy to remove an electron from the last occupied orbital will be low. The dipole moment is another way to obtain data on electronic distribution in a molecule and is one of the properties more used traditionally to discuss and rationalize the structure and reactivity of many chemical systems [37]. The values of E HOMO show the relation 1>2 for this property.…”

Section: Quantum Chemical Studymentioning

confidence: 99%