Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys
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2023
Authors
Dimitrijević, SilvanaDimitrijević, Stevan
Ivanović, Aleksandra
Korać, Marija
Ranitović, Milisav
Conference object (Published version)
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Although the same quality of various metals from the recycling process is considered for granted, obtaining aluminum of high purity and aluminum alloys with identical properties as from production from pure raw materials is a very challenging process, especially if the sources for recycling are numerous materials that contain different impurities. In this study, recycled alloys were produced by melting of aluminum scrap with the addition of the required components. This paper aims to compare two commercial Al alloys with their analogs from the recycling process. Both of the alloys belong to the aluminum series 6000, with designations 6060 and 6082. The results of comparing corrosion and physical characteristics are presented in this study. Physical characterization was performed by measuring the alloys' hardness and electrical conductivity. The electrochemical investigation used several corrosion methods, OCP (open circuit potential), measuring polarization curves in apparent Tafel reg...ion with extrapolation of results, and LRP (linear polarization resistance). The corrosion environment was acidulated 0.5M Na2SO4 with pH=2.5. The received results have confirmed insignificant differences between the properties of the commercial and alloys produced by the recycling. Recycled alloys have achieved almost identical mechanical properties and even slightly better corrosion characteristics, which was the consequence of the lower concentration of impurities in recycled alloys or higher concentration of microalloying components.
Keywords:
recycling / aluminium alloys / corrosion / Tafel extrapolation / linear polarization resistanceSource:
Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023, 2023, 269-275Publisher:
- Belgrade : Association of Metallurgical Engineers of Serbia (AMES)
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200052 (Mining and Metallurgy Institute, Bor) (RS-MESTD-inst-2020-200052)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200287 (Innovation Center of the Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200287)
- COST Action CA20130, European MIC Network - New pathways for science, sustainability and standards, supported by COST (European Cooperation in Science and Technology)
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Inovacioni centarTY - CONF AU - Dimitrijević, Silvana AU - Dimitrijević, Stevan AU - Ivanović, Aleksandra AU - Korać, Marija AU - Ranitović, Milisav PY - 2023 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6732 AB - Although the same quality of various metals from the recycling process is considered for granted, obtaining aluminum of high purity and aluminum alloys with identical properties as from production from pure raw materials is a very challenging process, especially if the sources for recycling are numerous materials that contain different impurities. In this study, recycled alloys were produced by melting of aluminum scrap with the addition of the required components. This paper aims to compare two commercial Al alloys with their analogs from the recycling process. Both of the alloys belong to the aluminum series 6000, with designations 6060 and 6082. The results of comparing corrosion and physical characteristics are presented in this study. Physical characterization was performed by measuring the alloys' hardness and electrical conductivity. The electrochemical investigation used several corrosion methods, OCP (open circuit potential), measuring polarization curves in apparent Tafel region with extrapolation of results, and LRP (linear polarization resistance). The corrosion environment was acidulated 0.5M Na2SO4 with pH=2.5. The received results have confirmed insignificant differences between the properties of the commercial and alloys produced by the recycling. Recycled alloys have achieved almost identical mechanical properties and even slightly better corrosion characteristics, which was the consequence of the lower concentration of impurities in recycled alloys or higher concentration of microalloying components. PB - Belgrade : Association of Metallurgical Engineers of Serbia (AMES) C3 - Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023 T1 - Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys EP - 275 SP - 269 UR - https://hdl.handle.net/21.15107/rcub_technorep_6732 ER -
@conference{ author = "Dimitrijević, Silvana and Dimitrijević, Stevan and Ivanović, Aleksandra and Korać, Marija and Ranitović, Milisav", year = "2023", abstract = "Although the same quality of various metals from the recycling process is considered for granted, obtaining aluminum of high purity and aluminum alloys with identical properties as from production from pure raw materials is a very challenging process, especially if the sources for recycling are numerous materials that contain different impurities. In this study, recycled alloys were produced by melting of aluminum scrap with the addition of the required components. This paper aims to compare two commercial Al alloys with their analogs from the recycling process. Both of the alloys belong to the aluminum series 6000, with designations 6060 and 6082. The results of comparing corrosion and physical characteristics are presented in this study. Physical characterization was performed by measuring the alloys' hardness and electrical conductivity. The electrochemical investigation used several corrosion methods, OCP (open circuit potential), measuring polarization curves in apparent Tafel region with extrapolation of results, and LRP (linear polarization resistance). The corrosion environment was acidulated 0.5M Na2SO4 with pH=2.5. The received results have confirmed insignificant differences between the properties of the commercial and alloys produced by the recycling. Recycled alloys have achieved almost identical mechanical properties and even slightly better corrosion characteristics, which was the consequence of the lower concentration of impurities in recycled alloys or higher concentration of microalloying components.", publisher = "Belgrade : Association of Metallurgical Engineers of Serbia (AMES)", journal = "Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023", title = "Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys", pages = "275-269", url = "https://hdl.handle.net/21.15107/rcub_technorep_6732" }
Dimitrijević, S., Dimitrijević, S., Ivanović, A., Korać, M.,& Ranitović, M.. (2023). Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys. in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023 Belgrade : Association of Metallurgical Engineers of Serbia (AMES)., 269-275. https://hdl.handle.net/21.15107/rcub_technorep_6732
Dimitrijević S, Dimitrijević S, Ivanović A, Korać M, Ranitović M. Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys. in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023. 2023;:269-275. https://hdl.handle.net/21.15107/rcub_technorep_6732 .
Dimitrijević, Silvana, Dimitrijević, Stevan, Ivanović, Aleksandra, Korać, Marija, Ranitović, Milisav, "Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys" in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023 (2023):269-275, https://hdl.handle.net/21.15107/rcub_technorep_6732 .