Tailoring materials properties of UFG aluminium alloys by accumulative roll bonded sandwich-like sheets

Hausöl T, Höppel HW, Göken M (2010)

Publication Type: Journal article

Publication year: 2010

Journal

Journal of Materials Science Springer Verlag (Germany)

Book Volume: 45

Pages Range: 4733-4738

Journal Issue: 17

DOI: 10.1007/s10853-010-4678-y

Abstract

Accumulative roll bonding (ARB) as a method of severe plastic deformation is a well-established process to produce ultrafine-grained (UFG) sheet materials with extraordinary mechanical properties. In this work ARB is applied to combine different sheet materials in order to tailor the materials properties by producing sandwich-like structures. The high strength aluminium alloy AA5754, after 4 ARB cycles (N4), is used as a core material. To achieve high corrosion resistance and good visual properties, it is cladded with commercially pure aluminium AA1050A (N4) at room temperature and alternatively with AA6014 (N4) at 230 °C. All materials are UFG and satisfactory bonding between the different layers of aluminium alloys is achieved. Nanoindentation measurements reveal that there is a sharp transition in hardness at the interface. The yield and tensile strength of the core material are fully retained in the case of the AA6014/AA5754 sandwich. The strength of the AA1050A/AA5754 sandwich is slightly lower compared to the core material but still twice as high as the clad material. The serrated yielding effect which is strongly visible in tensile tests on the pure AA5754 alloy completely disappears in the sandwich sheets, which means the surface quality is strongly enhanced.

Authors with CRIS profile

Heinz Werner Höppel Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften) Mathias Göken Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials 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:

Hausöl, T., Höppel, H.W., & Göken, M. (2010). Tailoring materials properties of UFG aluminium alloys by accumulative roll bonded sandwich-like sheets. Journal of Materials Science, 45(17), 4733-4738. https://dx.doi.org/10.1007/s10853-010-4678-y

MLA:

Hausöl, Tina, Heinz Werner Höppel, and Mathias Göken. "Tailoring materials properties of UFG aluminium alloys by accumulative roll bonded sandwich-like sheets." Journal of Materials Science 45.17 (2010): 4733-4738.

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