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Formability of continuous cast 5052 alloy thin sheets

Journal Article


Abstract


  • The formability of continuous cast 5052 alloy thin sheets from two different process schedules was examined. One was prepared in the laboratory by cold-rolling from a continuous cast thick plate followed by annealing (lab-processed sheet), and the other was produced by a new process involving hot-rolling followed immediately by in-line annealing (in-line annealed sheet). Tensile test results indicate that all the lab-processed sheets exhibit evident yield behavior. Increasing rolling reduction results in an increase of strength and a decrease of ductility in the lab-processed sheets due to increasing contribution of centerline segregation of second-phase particles. Both the lab-processed sheets annealed at 400 ��C for 90 min and the in-line annealed sheets exhibit tensile elongation of more than 20% and two-stage strain hardening behavior. Compared with the lab-processed sheets, the in-line annealed sheet annealed at 454 ��C has higher values of UTS and elongation. Furthermore, forming limit curves were determined. It is found that the level of the forming limit curve of the lab-processed thin sheet is lower than that of conventionally produced 5052-O Al, but close to that of 6111-T4 Al sheet. Moreover, the in-line annealed sheets have higher limit strains than the lab-processed sheets. These results demonstrate that the in-line annealing process results in the production of continuous cast alloy sheet with improved formability. �� Springer Science+Business Media, LLC 2007.

Publication Date


  • 2007

Citation


  • Zhu, H., Ghosh, A. K., & Maruyama, K. (2007). Formability of continuous cast 5052 alloy thin sheets. Journal of Materials Science, 42(2), 588-594. doi:10.1007/s10853-006-0832-y

Scopus Eid


  • 2-s2.0-33846704684

Start Page


  • 588

End Page


  • 594

Volume


  • 42

Issue


  • 2

Place Of Publication


Abstract


  • The formability of continuous cast 5052 alloy thin sheets from two different process schedules was examined. One was prepared in the laboratory by cold-rolling from a continuous cast thick plate followed by annealing (lab-processed sheet), and the other was produced by a new process involving hot-rolling followed immediately by in-line annealing (in-line annealed sheet). Tensile test results indicate that all the lab-processed sheets exhibit evident yield behavior. Increasing rolling reduction results in an increase of strength and a decrease of ductility in the lab-processed sheets due to increasing contribution of centerline segregation of second-phase particles. Both the lab-processed sheets annealed at 400 ��C for 90 min and the in-line annealed sheets exhibit tensile elongation of more than 20% and two-stage strain hardening behavior. Compared with the lab-processed sheets, the in-line annealed sheet annealed at 454 ��C has higher values of UTS and elongation. Furthermore, forming limit curves were determined. It is found that the level of the forming limit curve of the lab-processed thin sheet is lower than that of conventionally produced 5052-O Al, but close to that of 6111-T4 Al sheet. Moreover, the in-line annealed sheets have higher limit strains than the lab-processed sheets. These results demonstrate that the in-line annealing process results in the production of continuous cast alloy sheet with improved formability. �� Springer Science+Business Media, LLC 2007.

Publication Date


  • 2007

Citation


  • Zhu, H., Ghosh, A. K., & Maruyama, K. (2007). Formability of continuous cast 5052 alloy thin sheets. Journal of Materials Science, 42(2), 588-594. doi:10.1007/s10853-006-0832-y

Scopus Eid


  • 2-s2.0-33846704684

Start Page


  • 588

End Page


  • 594

Volume


  • 42

Issue


  • 2

Place Of Publication