Tailored heat treated accumulative roll bonded aluminum blanks: Microstructure and mechanical behavior

Journal article


Publication Details

Author(s): Maier V, Hausöl T, Schmidt C, Böhm W, Hung Nguyen , Merklein M, Höppel HW, Göken M
Journal: Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Publication year: 2012
Volume: 43
Journal issue: 9
Pages range: 3097-3107
ISSN: 1073-5623


Abstract

Aluminum alloy AA6016 was accumulative roll bonded up to eight cycles and investigated regarding formability by bending tests. Due to the limited bendability of accumulative roll bonding (ARB) processed materials, a tailored laser heat treatment was performed along the bending edge before forming. This tailored laser heat treatment causes a local recrystallization and recovery of the bending samples at the deformation zone, which locally increases ductility and allows higher bending angles achievable with lower forming forces. Between the recrystallized heat treated zone and the unaffected ultrafine-grained (UFG) base material, a gradient in grain size with a bimodal region is formed. This observed microstructural profile is confirmed by local mechanical testing measuring the hardness and strain rate sensitivity by nanoindentation techniques.


FAU Authors / FAU Editors

Böhm, Wolfgang
Institute of Manufacturing Technology
Göken, Mathias Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
Höppel, Heinz Werner PD Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
Maier, Verena
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)
Merklein, Marion Prof. Dr.-Ing.
Institute of Manufacturing Technology
Schmidt, Christian
Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


Research Fields

E Lightweight Materials
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Maier, V., Hausöl, T., Schmidt, C., Böhm, W., Hung Nguyen, ., Merklein, M.,... Göken, M. (2012). Tailored heat treated accumulative roll bonded aluminum blanks: Microstructure and mechanical behavior. Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, 43(9), 3097-3107. https://dx.doi.org/10.1007/s11661-012-1151-3

MLA:
Maier, Verena, et al. "Tailored heat treated accumulative roll bonded aluminum blanks: Microstructure and mechanical behavior." Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 43.9 (2012): 3097-3107.

BibTeX: 

Last updated on 2019-20-07 at 07:18