Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline
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2020
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Deep eutectic solvents have been widely acknowledged as ionic liquid analogues, since they share many characteristics and properties with ionic liquids. The two major application areas of deep eutectic solvents have been metal processing and synthesis media; however, plenty of other applications have already been reported and predicted for these liquids. Reline, an eutectic mixture of choline chloride and urea, is a well known representative of deep eutectic solvents. Despite their importance in the contemporary technologies, the knowledge about the corrosivity of deep eutectic solvents is remarkably scarce. This article reports the results on the corrosivity of reline towards two Al alloys, namely AA2024-T6 and AA6065-T6. To measure the corrosion rates and characterize the passive film on the alloys in reline, electrochemical impedance and inductively coupled plasma optical emission spectroscopy methods were used, and the corrosion product composition was analyzed by X-ray photoelectr...on spectroscopy. Surface morphology and Volta potential were imaged by scanning electron microscopy, atomic force microscopy and scanning Kelvin probe force microscopy. The corrosion tests show that the two alloys are extremely stable in reline, and the passive layer is formed in the first three hours of immersion in the corrosive media. There is no evidence that electrolyte species are incorporated into the Al oxide protective layer through chemical bonding.
Ključne reči:
Deep eutectic solvent / Aluminum alloys / Corrosion / RelineIzvor:
Electrochimica Acta, 2020, 357Izdavač:
- Pergamon-Elsevier Science Ltd, Oxford
Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200135 (Univerzitet u Beogradu, Tehnološko-metalurški fakultet) (RS-MESTD-inst-2020-200135)
- Portuguese Foundation for Science and Technology (FCT)Portuguese Foundation for Science and Technology [IF/01284/2015]
- Programa Operacional Capital Humano, comparticipado pelo Fundo Social Europeu e por fundos nacionais do MCTES [IF/01284/2015]
- FCT/MCTESPortuguese Foundation for Science and Technology [UIBD/CTM/50011/2020, UIBP/CTM/50011/2020]
- FEDER under the PT2020 Partnership Agreement
- [337-00-0 0227/2019-09/80]
DOI: 10.1016/j.electacta.2020.136861
ISSN: 0013-4686
WoS: 000582852200016
Scopus: 2-s2.0-85089396488
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Bucko, Mihael AU - Bastos, Alexandre C. AU - Yasakau, Kiryl A. AU - Ferreira, Mario G. S. AU - Bajat, Jelena PY - 2020 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4436 AB - Deep eutectic solvents have been widely acknowledged as ionic liquid analogues, since they share many characteristics and properties with ionic liquids. The two major application areas of deep eutectic solvents have been metal processing and synthesis media; however, plenty of other applications have already been reported and predicted for these liquids. Reline, an eutectic mixture of choline chloride and urea, is a well known representative of deep eutectic solvents. Despite their importance in the contemporary technologies, the knowledge about the corrosivity of deep eutectic solvents is remarkably scarce. This article reports the results on the corrosivity of reline towards two Al alloys, namely AA2024-T6 and AA6065-T6. To measure the corrosion rates and characterize the passive film on the alloys in reline, electrochemical impedance and inductively coupled plasma optical emission spectroscopy methods were used, and the corrosion product composition was analyzed by X-ray photoelectron spectroscopy. Surface morphology and Volta potential were imaged by scanning electron microscopy, atomic force microscopy and scanning Kelvin probe force microscopy. The corrosion tests show that the two alloys are extremely stable in reline, and the passive layer is formed in the first three hours of immersion in the corrosive media. There is no evidence that electrolyte species are incorporated into the Al oxide protective layer through chemical bonding. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Electrochimica Acta T1 - Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline VL - 357 DO - 10.1016/j.electacta.2020.136861 ER -
@article{ author = "Bucko, Mihael and Bastos, Alexandre C. and Yasakau, Kiryl A. and Ferreira, Mario G. S. and Bajat, Jelena", year = "2020", abstract = "Deep eutectic solvents have been widely acknowledged as ionic liquid analogues, since they share many characteristics and properties with ionic liquids. The two major application areas of deep eutectic solvents have been metal processing and synthesis media; however, plenty of other applications have already been reported and predicted for these liquids. Reline, an eutectic mixture of choline chloride and urea, is a well known representative of deep eutectic solvents. Despite their importance in the contemporary technologies, the knowledge about the corrosivity of deep eutectic solvents is remarkably scarce. This article reports the results on the corrosivity of reline towards two Al alloys, namely AA2024-T6 and AA6065-T6. To measure the corrosion rates and characterize the passive film on the alloys in reline, electrochemical impedance and inductively coupled plasma optical emission spectroscopy methods were used, and the corrosion product composition was analyzed by X-ray photoelectron spectroscopy. Surface morphology and Volta potential were imaged by scanning electron microscopy, atomic force microscopy and scanning Kelvin probe force microscopy. The corrosion tests show that the two alloys are extremely stable in reline, and the passive layer is formed in the first three hours of immersion in the corrosive media. There is no evidence that electrolyte species are incorporated into the Al oxide protective layer through chemical bonding.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Electrochimica Acta", title = "Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline", volume = "357", doi = "10.1016/j.electacta.2020.136861" }
Bucko, M., Bastos, A. C., Yasakau, K. A., Ferreira, M. G. S.,& Bajat, J.. (2020). Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline. in Electrochimica Acta Pergamon-Elsevier Science Ltd, Oxford., 357. https://doi.org/10.1016/j.electacta.2020.136861
Bucko M, Bastos AC, Yasakau KA, Ferreira MGS, Bajat J. Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline. in Electrochimica Acta. 2020;357. doi:10.1016/j.electacta.2020.136861 .
Bucko, Mihael, Bastos, Alexandre C., Yasakau, Kiryl A., Ferreira, Mario G. S., Bajat, Jelena, "Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline" in Electrochimica Acta, 357 (2020), https://doi.org/10.1016/j.electacta.2020.136861 . .