THE MATHEMATICAL-MODELING OF CMA MULTILAYERED COATINGS

Multilayered coatings have been produced by a number of techniques of which electrodeposition has been associated with the concept of compos ition modulation when applied to alloys (CMA). The interest centres ar ound enhanced properties in the coatings. This paper reviews the evide nce for enhanced properties and indications of their origins. A phenom enological model for the one-dimensional elastic response of the coati ngs is described and it is shown that this model has the capability of reproducing the elastic anomalies that are observed experimentally. T he extension of the phenomenological model to consider three-dimension al elastic response and to examine one-dimensional plastic behaviour i s discussed. (C) 1998 Elsevier Science S.A.