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The influence of cathodic hydrogen charging on the mechanical behaviour of Al-4Zn-1Mg alloy

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Abstract

The effect of cathodic charging on the mechanical behaviour of Al-4Zn-1Mg alloy was studied. Hardening of the Al-4Zn-1Mg alloy surface, due to the hydrogen absorption, was observed. The ultimate tensile stress of the charged aluminium alloy was noted to be a non-linear function of the charging current density. The cathodically charged aluminium alloy exhibited brittle transgranular fracture at the surface layer, whereas ductile intergranular fracture was observed at the deeper layers of the same alloy.

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Authors and Affiliations

  1. Laboratory of Physical Metallurgy, National Technical University of Athens, Zografou Campus, 15780, Athens, Greece

    C. Panagopoulos & P. Papapanayiotou

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  1. C. Panagopoulos
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  2. P. Papapanayiotou
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Panagopoulos, C., Papapanayiotou, P. The influence of cathodic hydrogen charging on the mechanical behaviour of Al-4Zn-1Mg alloy. Journal of Materials Science 30, 3449–3456 (1995). https://doi.org/10.1007/BF00349893

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  • DOI: https://doi.org/10.1007/BF00349893

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