Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole
Samo za registrovane korisnike
2020
Autori
Jegdić, BoreBobić, Biljana
Stevanović, Maja
Mihailović, Marija
Daničić, Dunja
Kovačina, Jovanka
Radojković, Bojana
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The paper analyses the corrosion behaviour of both naturally and artificially aged AA2024 aluminium alloy in NaCl solution in the presence of the corrosion inhibitor benzotriazole (BTA). The differences between these two aging tempers in terms of resistance to general corrosion are explained as well as the differences in terms of pit formation and pit growth. Based on the values of the polarisation resistance and the corrosion current density, the general corrosion resistance of the alloy is determined in the absence and in the presence of BTA. The resistance to pit formation and pit growth is determined on the basis of the polarisation measurements results. Scanning electron microscopy confirmed the expected differences in the appearance and size of the pits formed in naturally aged and artificially aged alloy. In the presence of the corrosion inhibitor BTA, for both aging tempers of the alloy, the corrosion resistance is significantly higher compared to the resistance in the solution... without the inhibitor. The value of the polarisation resistance for both aging tempers increases over time. However, at the same time, the value of the constant phase element increases as well. An explanation for this phenomenon is provided. The calculated average value of the thickness of the adsorbed inhibitor layer on the surface of the aluminium alloy is in accordance with the inhibitor protective ability for both aging tempers. Graphic
Ključne reči:
Aluminium alloys / Microstructure / Pitting corrosion / Electrochemical impedance spectroscopy / Scanning electron microscopyIzvor:
Metals and Materials International, 2020, 26, 11, 1643-1653Izdavač:
- Korean Inst Metals Materials, Seoul
Finansiranje / projekti:
- Razvoj tehnoloških postupaka livenja pod uticajem elektromagnetnog polja i tehnologija plastične prerade u toplom stanju četvorokomponentnih legura Al-Zn za specijalne namene (RS-34002)
- Istraživanje i optimizacija tehnoloških i funkcionalnih performansi ventilacionog mlina termoelektrane Kostolac B (RS-34028)
- Razvoj triboloških mikro/nano dvokomponentnih i hibridnih samopodmazujućih kompozita (RS-35021)
DOI: 10.1007/s12540-019-00451-8
ISSN: 1598-9623
WoS: 000585156500005
Scopus: 2-s2.0-85073794199
Institucija/grupa
Inovacioni centarTY - JOUR AU - Jegdić, Bore AU - Bobić, Biljana AU - Stevanović, Maja AU - Mihailović, Marija AU - Daničić, Dunja AU - Kovačina, Jovanka AU - Radojković, Bojana PY - 2020 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4533 AB - The paper analyses the corrosion behaviour of both naturally and artificially aged AA2024 aluminium alloy in NaCl solution in the presence of the corrosion inhibitor benzotriazole (BTA). The differences between these two aging tempers in terms of resistance to general corrosion are explained as well as the differences in terms of pit formation and pit growth. Based on the values of the polarisation resistance and the corrosion current density, the general corrosion resistance of the alloy is determined in the absence and in the presence of BTA. The resistance to pit formation and pit growth is determined on the basis of the polarisation measurements results. Scanning electron microscopy confirmed the expected differences in the appearance and size of the pits formed in naturally aged and artificially aged alloy. In the presence of the corrosion inhibitor BTA, for both aging tempers of the alloy, the corrosion resistance is significantly higher compared to the resistance in the solution without the inhibitor. The value of the polarisation resistance for both aging tempers increases over time. However, at the same time, the value of the constant phase element increases as well. An explanation for this phenomenon is provided. The calculated average value of the thickness of the adsorbed inhibitor layer on the surface of the aluminium alloy is in accordance with the inhibitor protective ability for both aging tempers. Graphic PB - Korean Inst Metals Materials, Seoul T2 - Metals and Materials International T1 - Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole EP - 1653 IS - 11 SP - 1643 VL - 26 DO - 10.1007/s12540-019-00451-8 ER -
@article{ author = "Jegdić, Bore and Bobić, Biljana and Stevanović, Maja and Mihailović, Marija and Daničić, Dunja and Kovačina, Jovanka and Radojković, Bojana", year = "2020", abstract = "The paper analyses the corrosion behaviour of both naturally and artificially aged AA2024 aluminium alloy in NaCl solution in the presence of the corrosion inhibitor benzotriazole (BTA). The differences between these two aging tempers in terms of resistance to general corrosion are explained as well as the differences in terms of pit formation and pit growth. Based on the values of the polarisation resistance and the corrosion current density, the general corrosion resistance of the alloy is determined in the absence and in the presence of BTA. The resistance to pit formation and pit growth is determined on the basis of the polarisation measurements results. Scanning electron microscopy confirmed the expected differences in the appearance and size of the pits formed in naturally aged and artificially aged alloy. In the presence of the corrosion inhibitor BTA, for both aging tempers of the alloy, the corrosion resistance is significantly higher compared to the resistance in the solution without the inhibitor. The value of the polarisation resistance for both aging tempers increases over time. However, at the same time, the value of the constant phase element increases as well. An explanation for this phenomenon is provided. The calculated average value of the thickness of the adsorbed inhibitor layer on the surface of the aluminium alloy is in accordance with the inhibitor protective ability for both aging tempers. Graphic", publisher = "Korean Inst Metals Materials, Seoul", journal = "Metals and Materials International", title = "Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole", pages = "1653-1643", number = "11", volume = "26", doi = "10.1007/s12540-019-00451-8" }
Jegdić, B., Bobić, B., Stevanović, M., Mihailović, M., Daničić, D., Kovačina, J.,& Radojković, B.. (2020). Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole. in Metals and Materials International Korean Inst Metals Materials, Seoul., 26(11), 1643-1653. https://doi.org/10.1007/s12540-019-00451-8
Jegdić B, Bobić B, Stevanović M, Mihailović M, Daničić D, Kovačina J, Radojković B. Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole. in Metals and Materials International. 2020;26(11):1643-1653. doi:10.1007/s12540-019-00451-8 .
Jegdić, Bore, Bobić, Biljana, Stevanović, Maja, Mihailović, Marija, Daničić, Dunja, Kovačina, Jovanka, Radojković, Bojana, "Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole" in Metals and Materials International, 26, no. 11 (2020):1643-1653, https://doi.org/10.1007/s12540-019-00451-8 . .