Effect of Aging Parameters of EN AW-7021 Aluminium Alloys on Stress Corrosion Cracking
The main assumption of the conducted research was the selection of appropriate heat treatment parameters to obtain the best possible resistance to stress corrosion cracking (SCC) and the highest strength properties of the extruded profiles. The work selected the temperature and time of one- and two-...
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Polish Academy of Sciences
2024-09-01
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| Series: | Archives of Metallurgy and Materials |
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| Online Access: | https://journals.pan.pl/Content/132667/AMM-2024-3-27-Boczkal.pdf |
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| author | S. Boczkal M. Węgrzyn W. Szymański J. Bem K. Wala B. Płonka D. Leśniak M. Nowak |
| author_facet | S. Boczkal M. Węgrzyn W. Szymański J. Bem K. Wala B. Płonka D. Leśniak M. Nowak |
| author_sort | S. Boczkal |
| collection | DOAJ |
| description | The main assumption of the conducted research was the selection of appropriate heat treatment parameters to obtain the best possible resistance to stress corrosion cracking (SCC) and the highest strength properties of the extruded profiles. The work selected the temperature and time of one- and two-stage treatment of the EN AW-7021 alloy based on aging curves. Tests carried out for samples after aging at 135°C for 24 h and two-stage aging at 90°C/8 h + 135°C/8 h revealed the highest resistance to SCC. The 7021 alloy, after heat treatment at 90°C/8 h + 135°C/16 h, reached the highest tensile strength of 534MPa. Transmission electron microscopy (TEM) observations showed slight differences in the finely dispersed nucleoids between the selected parameters of the artificial aging process. |
| format | Article |
| id | doaj-art-e1a15844d3e1470fad933e18bf45c6df |
| institution | DOAJ |
| issn | 2300-1909 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj-art-e1a15844d3e1470fad933e18bf45c6df2025-08-20T02:53:31ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092024-09-01vol. 69No 310611069https://doi.org/10.24425/amm.2024.150926Effect of Aging Parameters of EN AW-7021 Aluminium Alloys on Stress Corrosion CrackingS. Boczkal0https://orcid.org/0000-0002-3421-4723M. Węgrzyn1https://orcid.org/0000-0003-4072-1008W. Szymański2J. Bem3https://orcid.org/0000-0002-3372-7869K. Wala4https://orcid.org/0000-0002-2454-3849B. Płonka5https://orcid.org/0000-0002-8577-2514D. Leśniak6https://orcid.org/0000-0002-3573-1212M. Nowak7https://orcid.org/0000-0002-4308-7738Łukasiewicz Research Network – Institute Of Non Ferrous Metals , Light Metals Centre, 19 Pilsudksiego Str., 32-050 Skawina, PolandŁukasiewicz Research Network – Institute Of Non Ferrous Metals , Light Metals Centre, 19 Pilsudksiego Str., 32-050 Skawina, PolandŁukasiewicz Research Network – Institute Of Non Ferrous Metals , Light Metals Centre, 19 Pilsudksiego Str., 32-050 Skawina, PolandŁukasiewicz Research Network – Institute Of Non Ferrous Metals , Light Metals Centre, 19 Pilsudksiego Str., 32-050 Skawina, PolandŁukasiewicz Research Network – Institute Of Non Ferrous Metals , Light Metals Centre, 19 Pilsudksiego Str., 32-050 Skawina, PolandŁukasiewicz Research Network – Institute Of Non Ferrous Metals , Light Metals Centre, 19 Pilsudksiego Str., 32-050 Skawina, PolandAGH University Of Kraków, Faculty Of Non-Ferrous Metals , Al . Mickiewicza 30, 30-059 Krakow, PolandŁukasiewicz Research Network – Institute Of Non Ferrous Metals , Light Metals Centre, 19 Pilsudksiego Str., 32-050 Skawina, PolandThe main assumption of the conducted research was the selection of appropriate heat treatment parameters to obtain the best possible resistance to stress corrosion cracking (SCC) and the highest strength properties of the extruded profiles. The work selected the temperature and time of one- and two-stage treatment of the EN AW-7021 alloy based on aging curves. Tests carried out for samples after aging at 135°C for 24 h and two-stage aging at 90°C/8 h + 135°C/8 h revealed the highest resistance to SCC. The 7021 alloy, after heat treatment at 90°C/8 h + 135°C/16 h, reached the highest tensile strength of 534MPa. Transmission electron microscopy (TEM) observations showed slight differences in the finely dispersed nucleoids between the selected parameters of the artificial aging process.https://journals.pan.pl/Content/132667/AMM-2024-3-27-Boczkal.pdfextruded elementshigh-strength aluminiumheat treatmentstress corrosion cracking |
| spellingShingle | S. Boczkal M. Węgrzyn W. Szymański J. Bem K. Wala B. Płonka D. Leśniak M. Nowak Effect of Aging Parameters of EN AW-7021 Aluminium Alloys on Stress Corrosion Cracking Archives of Metallurgy and Materials extruded elements high-strength aluminium heat treatment stress corrosion cracking |
| title | Effect of Aging Parameters of EN AW-7021 Aluminium Alloys on Stress Corrosion Cracking |
| title_full | Effect of Aging Parameters of EN AW-7021 Aluminium Alloys on Stress Corrosion Cracking |
| title_fullStr | Effect of Aging Parameters of EN AW-7021 Aluminium Alloys on Stress Corrosion Cracking |
| title_full_unstemmed | Effect of Aging Parameters of EN AW-7021 Aluminium Alloys on Stress Corrosion Cracking |
| title_short | Effect of Aging Parameters of EN AW-7021 Aluminium Alloys on Stress Corrosion Cracking |
| title_sort | effect of aging parameters of en aw 7021 aluminium alloys on stress corrosion cracking |
| topic | extruded elements high-strength aluminium heat treatment stress corrosion cracking |
| url | https://journals.pan.pl/Content/132667/AMM-2024-3-27-Boczkal.pdf |
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