Influence of Quenching and Subsequent Artificial Aging on Tensile Strength of Laser-Welded Joints of Al–Cu–Li Alloy Научная публикация
Журнал |
Metals
, E-ISSN: 2075-4701 |
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Вых. Данные | Год: 2023, Том: 13, Номер: 8, Номер статьи : 1393, Страниц : 22 DOI: 10.3390/met13081393 | ||||||||
Ключевые слова | laser welding; aluminum-lithium alloy; scanning electron microscopy; synchrotron radiation; X-ray diffractometry; mechanical properties | ||||||||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | Российский научный фонд | 23-79-00037 |
Реферат:
The research aim was to optimize post-weld heat-treatment (PWHT) modes for a laser-welded joint of the Al–Cu–Li alloy and improve their respective strength properties. As a result, the ultimate tensile strength, yield point, and elongation of the joint were enhanced up to 95%, 94%, and 38%, respectively, of those inherent in the base metal. Before and after PWHT, both microstructures and phase compositions have been examined by optical and scanning electron microscopy, as well as synchrotron X-ray diffractometry. In the as-welded metal, the α-Al and T1(Al2CuLi) phases were found, along with the θ′(Al2Cu) and S′(Al2CuMg) phases localized at the grain boundaries, significantly reducing the mechanical properties of the joint. Upon quenching, the agglomerates dissolved at the grain boundaries, the solid solution was homogenized, and both Guinier–Preston zones and precipitates of the intermediate metastable θ″ phase were formed. After subsequent optimal artificial aging, the (predominant) hardening θ′ and (partial) T1(Al2CuLi) phases were observed in the weld metal, which contributed to the improvement of the strength properties of the joint.
Библиографическая ссылка:
Malikov A.
, Karpov E.
, Kuper K.
, Shmakov A.
Influence of Quenching and Subsequent Artificial Aging on Tensile Strength of Laser-Welded Joints of Al–Cu–Li Alloy
Metals. 2023. V.13. N8. 1393 :1-22. DOI: 10.3390/met13081393 WOS Scopus РИНЦ CAPlus OpenAlex
Influence of Quenching and Subsequent Artificial Aging on Tensile Strength of Laser-Welded Joints of Al–Cu–Li Alloy
Metals. 2023. V.13. N8. 1393 :1-22. DOI: 10.3390/met13081393 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: | 6 июл. 2023 г. |
Принята к публикации: | 1 авг. 2023 г. |
Опубликована в печати: | 3 авг. 2023 г. |
Опубликована online: | 3 авг. 2023 г. |
Идентификаторы БД:
Web of science: | WOS:001055323300001 |
Scopus: | 2-s2.0-85169119202 |
РИНЦ: | 54654404 |
Chemical Abstracts: | 2023:1847139 |
OpenAlex: | W4385543185 |
Цитирование в БД:
БД | Цитирований |
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РИНЦ | 1 |