Long term corrosion phenomena are generally not obtained in laboratorial corrosion experiments. Particular features, such as strong intergranular corrosion, can be an indication of the antiquity of a metallic artefact. In the present study, various corrosion features from several archaeological bronze artefacts, with ages ranging from 2 to 5 millenniums, are examined using optical and scanning electron microscopies. Elemental composition was obtained through micro-EDXRF analyses. Corrosion patterns could, in some occasions, be related to specific thermomechanical treatments performed before burial and, in others, with particular phases present in the artefact.
|Name||Materials Science Forum|
|Publisher||Trans Tech Publications Ltd|
|Conference||5th International Materials Symposium/14th Conference of the Sociedade Portuguesa de Materiais|
|Period||5/04/09 → 8/04/09|
- Copper alloy
- Intergranular corrosion
- Selective corrosion