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Failure of Magnesium Sheets Under Monotonic Loading: 3D Examination of Fracture Mode and Mechanisms

  • Letters in Fracture and Micromechanics
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Abstract

Damage evolution in a commercial magnesium sheet alloy (Mg-3Al-1Zn-0.3Mn) at room temperature is investigated. Kahn tear tests were performed to characterize the crack extension behaviour. Scanning electron microscopy of the fracture surfaces revealed flat inclined areas and the absence of cracked particles and dimples. Post-mortem synchrotron tomography of a stopped crack was used to further identify the predominant damage mechanism in the specimen’s ligament. Nucleation of submicrometre-voids, a micro-void sheeting mechanism and the absence of classical void growth could be identified.

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Authors and Affiliations

  1. Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung, Institute of Materials Research, Materials Mechanics, Max-Planck-Str. 1, 21502, Geesthacht, Germany

    D. Steglich

  2. Mines ParisTech, Centre des Matériaux, CNRS UMR 7633, BP87, 91003, Evry Cedex, France

    T. F. Morgeneyer

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  1. D. Steglich
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  2. T. F. Morgeneyer
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Correspondence to D. Steglich.

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Steglich, D., Morgeneyer, T.F. Failure of Magnesium Sheets Under Monotonic Loading: 3D Examination of Fracture Mode and Mechanisms. Int J Fract 183, 105–112 (2013). https://doi.org/10.1007/s10704-013-9863-y

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  • DOI: https://doi.org/10.1007/s10704-013-9863-y

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