[en] Two nickel-based coatings obtained from reducing baths are studied. The first one is studied as-
deposited whereas the second one was subjected to a heat-treatment. Hardness and Young's modulus
of coatings have been investigated by means of indentation tests. Results show that mechanical
properties are homogenous in the whole thickness of the coating. On the other hand, the heat
treatment leads on a significantly increase of hardness and modulus. Residual stresses in the coatings
are studied by the incremental ring core method. Values of residual stresses are small, scattered and do not seem to be heat-treatment dependent. Without any modifications of residual stresses before
and after heat treatment, mechanical properties evolutions were attributed to the microstructural
modification of the coating and to the precipitation of hard phases.
Directive 2011 /65/UE du Parlement européen et du Conseil du 8 juin 2011 relative à la limitation de l'utilisation de certaines substances dangereuses dans les équipements électriques et électroniques
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