Effects of early stages of prestretching on the aging kinetics in Al–Cu–Li–based alloy
A combination of high hardness values and a low energy–consumption preparation method was used to induce the precipitation of the T _1 phase in the Al alloy AA2195. This combination was obtained by subjecting the alloy samples to sequential and early stages of prestretching. Hardness testing and dif...
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Format: | Article |
Language: | English |
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IOP Publishing
2023-01-01
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Series: | Materials Research Express |
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Online Access: | https://doi.org/10.1088/2053-1591/accf63 |
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author | Muna Khushaim |
author_facet | Muna Khushaim |
author_sort | Muna Khushaim |
collection | DOAJ |
description | A combination of high hardness values and a low energy–consumption preparation method was used to induce the precipitation of the T _1 phase in the Al alloy AA2195. This combination was obtained by subjecting the alloy samples to sequential and early stages of prestretching. Hardness testing and differential scanning calorimetry were employed to explore the behaviours of the hardness and enthalpy values as functions of the prestretching level applied before aging. Results demonstrated that the optimal aging thermomechanical conditions are (1) 150 °C for 10 h after applying prestretching levels of 0%, 1%, and 2% and (2) 150 °C for 20 h after applying prestretching levels of 3% and 4%. Under these conditions, the recorded enthalpy values for the formation of the T _1 phase at prestretching levels of 0%, 1%, and 2% were 2.86, 1.72, and 1.14 J g ^−1 , respectively and those obtained at prestretching levels of 3% and 4% were 1.43 and 1.27 J g ^−1 , respectively. |
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spelling | doaj.art-79fac88bfc554c3b9bcdc88bd03e27bd2023-08-09T16:09:08ZengIOP PublishingMaterials Research Express2053-15912023-01-0110505650210.1088/2053-1591/accf63Effects of early stages of prestretching on the aging kinetics in Al–Cu–Li–based alloyMuna Khushaim0https://orcid.org/0000-0002-0941-7086Department of Physics, Faculty of Science, Taibah University , PO Box: 30002, PO Code 41447, Al-Madina, Saudi Arabia; Strategic Research Labs, Taibah University , PO Box: 30002, PO Code 41447, Al-Madina, Saudi ArabiaA combination of high hardness values and a low energy–consumption preparation method was used to induce the precipitation of the T _1 phase in the Al alloy AA2195. This combination was obtained by subjecting the alloy samples to sequential and early stages of prestretching. Hardness testing and differential scanning calorimetry were employed to explore the behaviours of the hardness and enthalpy values as functions of the prestretching level applied before aging. Results demonstrated that the optimal aging thermomechanical conditions are (1) 150 °C for 10 h after applying prestretching levels of 0%, 1%, and 2% and (2) 150 °C for 20 h after applying prestretching levels of 3% and 4%. Under these conditions, the recorded enthalpy values for the formation of the T _1 phase at prestretching levels of 0%, 1%, and 2% were 2.86, 1.72, and 1.14 J g ^−1 , respectively and those obtained at prestretching levels of 3% and 4% were 1.43 and 1.27 J g ^−1 , respectively.https://doi.org/10.1088/2053-1591/accf63prestretching levelprecipitation strengtheningaging kinetics |
spellingShingle | Muna Khushaim Effects of early stages of prestretching on the aging kinetics in Al–Cu–Li–based alloy Materials Research Express prestretching level precipitation strengthening aging kinetics |
title | Effects of early stages of prestretching on the aging kinetics in Al–Cu–Li–based alloy |
title_full | Effects of early stages of prestretching on the aging kinetics in Al–Cu–Li–based alloy |
title_fullStr | Effects of early stages of prestretching on the aging kinetics in Al–Cu–Li–based alloy |
title_full_unstemmed | Effects of early stages of prestretching on the aging kinetics in Al–Cu–Li–based alloy |
title_short | Effects of early stages of prestretching on the aging kinetics in Al–Cu–Li–based alloy |
title_sort | effects of early stages of prestretching on the aging kinetics in al cu li based alloy |
topic | prestretching level precipitation strengthening aging kinetics |
url | https://doi.org/10.1088/2053-1591/accf63 |
work_keys_str_mv | AT munakhushaim effectsofearlystagesofprestretchingontheagingkineticsinalculibasedalloy |