Optimized layer architecture for an extended fatigue life of ultrafine-grained AA1050/AA5005 laminated metal composites

Kümmel F, Tegtmeier TS, Höppel HW, Göken M (2017)

Publication Type: Journal article

Publication year: 2017

Journal

IOP Conference Series: Materials Science and Engineering IOP Publishing: Conference Series

Book Volume: 194

Pages Range: 012036

DOI: 10.1088/1757-899X/194/1/012036

Abstract

The influence of interfaces on the fatigue life in AA1050/AA5005 ultrafine-grained laminated metal composites was investigated. At constant sheet thickness, the layer thickness and the number of material interfaces was varied by performing different cycles of accumulative roll bonding. It is found that crack deviation occurs if the crack approaches the soft to hard (AA1050/AA5005) material interface resulting in strongly enhanced fatigue lives compared to the mono-material. The most favourable layer architecture for enhanced fatigue life strongly depends on the applied stress amplitudes. At intermediate stress amplitudes a large layer thickness of 500 \textgreekmm (N4) and 8 material interfaces gives the longest fatigue life. In contrast, at low stress amplitudes the sheets with 32 material interfaces and a layer thickness of 125 \textgreekmm (N6) shows the longest fatigue life.

Authors with CRIS profile

Frank Kümmel Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften) 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:

Kümmel, F., Tegtmeier, T.-S., Höppel, H.W., & Göken, M. (2017). Optimized layer architecture for an extended fatigue life of ultrafine-grained AA1050/AA5005 laminated metal composites. IOP Conference Series: Materials Science and Engineering, 194, 012036. https://doi.org/10.1088/1757-899X/194/1/012036

MLA:

Kümmel, Frank, et al. "Optimized layer architecture for an extended fatigue life of ultrafine-grained AA1050/AA5005 laminated metal composites." IOP Conference Series: Materials Science and Engineering 194 (2017): 012036.

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