Journal of Materials Science

, Volume 30, Issue 13, pp 3449–3456 | Cite as

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

  • C. Panagopoulos
  • P. Papapanayiotou


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.


Hydrogen Polymer Surface Layer Brittle Aluminium Alloy 
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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • C. Panagopoulos
    • 1
  • P. Papapanayiotou
    • 1
  1. 1.Laboratory of Physical MetallurgyNational Technical University of AthensAthensGreece

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