Towards the Problem of Forming Full Strength Welded Joints on Aluminum Alloy Sheets. Part I: AA2024

Towards the Problem of Forming Full Strength Welded Joints on Aluminum Alloy Sheets. Part I: AA2024

Podrobná bibliografie
Parent link:AIP Conference Proceedings
Vol. 1783 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016.— 2016.— [020058, 4 p.]
Korporativní autor: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра физики высоких технологий в машиностроении (ФВТМ)
Další autoři: Fortuna S. Sergey, Eliseev A. Alexander, Kalashnikova T. Tatiana, Kolubaev Е. А. Evgeny Aleksandrovich
Shrnutí:Title screen
This work shows the microstructural evolution of solid solution grains and secondary phase precipitates in the stirring zones of ultrasonic-assisted friction stir welding (UAFSW) and standard friction stir welding (FSW). As shown, fine spherical AlMgCu precipitates dominate in FSW stirring zone whereas nanosized Al[2]MgCu (S-phase) platelets ones are the main finding in UAFSW sample. The mechanical strength of AA2024 is provided by precipitation of coherent intermetallic S-phase particles. The dominating amount of S-phase precipitates in UAFSW sample provided the ultimate stress level close to that of the base metal, i.e. 402 MPa as compared to 302 MPa of FSW sample. These values constituted 93 and 85%, respectively, of the base metal strength.
Режим доступа: по договору с организацией-держателем ресурса
Vydáno: 2016
Témata:
электронный ресурс
труды учёных ТПУ
прочность
сварные соединения
алюминиевые сплавы
трение
ультразвуковая сварка
On-line přístup:http://dx.doi.org/10.1063/1.4966351
Médium: Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652649
Popis
Shrnutí:Title screen
This work shows the microstructural evolution of solid solution grains and secondary phase precipitates in the stirring zones of ultrasonic-assisted friction stir welding (UAFSW) and standard friction stir welding (FSW). As shown, fine spherical AlMgCu precipitates dominate in FSW stirring zone whereas nanosized Al[2]MgCu (S-phase) platelets ones are the main finding in UAFSW sample. The mechanical strength of AA2024 is provided by precipitation of coherent intermetallic S-phase particles. The dominating amount of S-phase precipitates in UAFSW sample provided the ultimate stress level close to that of the base metal, i.e. 402 MPa as compared to 302 MPa of FSW sample. These values constituted 93 and 85%, respectively, of the base metal strength.
Режим доступа: по договору с организацией-держателем ресурса
DOI:10.1063/1.4966351

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