Documentation of the Corrosion of Composite-Extruded Aluminium Matrix Extrusions Using the Push-Out Test
A possibility to increase both stiffness and strength of aluminium-based structures for the application in lightweight profiles for vehicle space frames is the use of composite extrusions in which high-strength metallic reinforcements are incorporated. Within the scope of the present investigations, composite-extruded profiles with wire-reinforcements made of austenitic spring steel 1.4310 (X10CrNi18-8), in an aluminium matrix AA6060 (AlMgSi0.5), which were exposed to different corrosive media for different times, were characterised in terms of the debonding shear strength using the push-out-technique. The formation of a galvanic couple could be conceived mathematically in regard of terms describing the formation of a shear-impeding layer and the corrosive attack. Thereby the parameters for the different media could be determined.
Klaus Weinert, Jürgen Fleischer, A. Erman Tekkaya, Michael Zäh, and Marco Schikorra
M. Merzkirch et al., "Documentation of the Corrosion of Composite-Extruded Aluminium Matrix Extrusions Using the Push-Out Test", Advanced Materials Research, Vol. 43, pp. 17-22, 2008