Influence of residual stress, surface roughness and crystallographic texture induced by machining on the corrosion behaviour of copper in salt-fog atmosphere - Archive ouverte HAL
Article Dans Une Revue Corrosion Science Année : 2012

Influence of residual stress, surface roughness and crystallographic texture induced by machining on the corrosion behaviour of copper in salt-fog atmosphere

Résumé

The influence of quadratic stress, crystallographic texture, lubrication and surface roughness generated by superfinish turning on the corrosion behaviour of pure copper was quantified in salt-fog atmosphere. This was done using statistical analysis (Pearson's correlation matrix). Three compounds were found after corrosion tests: atacamite/paratacamite and a black layer (mixture of the lubricant and the salt atmosphere). Surface characteristics were classified according to their decreasing influence on the formation of atacamite/paratacamite as follows: surface roughness and quadratic stress. Lubrication and the crystallographic texture have the lowest influence on corrosion processes. Surface observations revealed that general dissolution occurred under atacamite/paratacamite.

Dates et versions

hal-00761231 , version 1 (05-12-2012)

Identifiants

Citer

J. Gravier, V. Vignal, S. Bissey-Breton. Influence of residual stress, surface roughness and crystallographic texture induced by machining on the corrosion behaviour of copper in salt-fog atmosphere. Corrosion Science, 2012, 61, pp.162--170. ⟨10.1016/j.corsci.2012.04.032⟩. ⟨hal-00761231⟩
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