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

Maier V, Hausöl T, Schmidt C, Böhm W, Hung Nguyen , Merklein M, Höppel HW, Göken M (2012)

Publication Type: Journal article

Publication year: 2012

Journal

Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science ASM International

Book Volume: 43

Pages Range: 3097-3107

Journal Issue: 9

DOI: 10.1007/s11661-012-1151-3

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.

Authors with CRIS profile

Verena Maier Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften) Christian Schmidt Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften) Wolfgang Böhm Institute of Manufacturing Technology (LFT) Marion Merklein Institute of Manufacturing Technology (LFT) Heinz Werner Höppel Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften) Mathias Göken Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM) Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Related research project(s)

Layered Lightweight Composites and Graded Materials (EXC315 EAM (E3)) Exzellenz-Cluster Engineering of Advanced Materials Nov. 1, 2012 - Oct. 31, 2017

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://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.

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