TPRC publication studies the effects of shot peening on titanium-thermoplastic composite gaskets
Schematic representation of the co-consolidation process. Photo credit: Vanessa M. Marinosci, Wouter JB Grouve, Matthjn B. de Rooij, Sebastiaan Whijskamp and Remko Akkerman.
Vanessa Marinosci, researcher at the Center for Research on Thermoplastic Composites (TPRC, Enschede, The Netherlands), recently published an article titled âEffect of shot peening on the fracture toughness of hybrid titanium-thermoplastic composite gaskets“ in the International Journal of Adhesion and Adhesives. In the article, the correlation between the mechanical performance and the surface morphology of titanium of Ti6Al4V-C / PEKK co-consolidated gaskets is described.
Different surface morphologies have been obtained by shot peening of the titanium surface using different shot peening pressures. Subsequently, specimens were fabricated by co-consolidating unidirectional titanium C / PEKK in an autoclave. The topographic characterization of the titanium surface and the evaluation of the toughness at the interfacial fracture were carried out, in order to correlate the mechanical performance of the joint with that of titanium. roughness parameters. In addition, a crack surface analysis was performed, Optical microscopy, to identify and quantify the failure mechanisms driving the mechanical performance of the joints.
The research was carried out by TPRC in collaboration with the University of Twente (UT, Enschede, The Netherlands). The financial support of the Dutch Research Council (NWO) and members of the TPRC is greatly appreciated.
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