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TPRC publication studies the effects of grit-blasting on titanium-thermoplastic composite joints

Researcher Vanessa Marinosci studies the correlation between mechanical performance and titanium surface morphology of co-consolidated Ti6Al4V-C/PEKK joints.

Grace Nehls
Edited by:  Grace Nehls
Senior Managing Editor, ÂÌñÏ×ÆÞ and Products Finishing

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Schematic representation of the co-consolidation process.

Schematic representation of the co-consolidation process. Photo Credit: Vanessa M. Marinosci, Wouter J.B. Grouve, Matthjn B. de Rooij, Sebastiaan Whijskamp and Remko Akkerman.

ThermoPlastic composites Research Center (TPRC, Enschede, Netherlands) researcher Vanessa Marinosci has recently published an article called “” in the International Journal of Adhesion and Adhesives. In the article, the correlation between mechanical performance and titanium surface morphology of co-consolidated Ti6Al4V-C/PEKK joints is described.

Various surface morphologies were obtained by grit-blasting the titanium surface using different blasting pressures. Subsequently, test coupons were manufactured by co-consolidating titanium-unidirectional C/PEKK in an autoclave. Topographical characterization of the titanium surface and evaluation of interfacial fracture toughness were carried out, in order to correlate joint mechanical performance to titanium's . Furthermore, crack surface analysis was conducted, by means of , to identify and quantify the failure mechanisms driving joint mechanical performance. 

The research was conducted by TPRC in collaboration with the University of Twente (UT, Enschede, Netherlands). The financial support of the Dutch Research Council (NWO) and the TPRC members is gratefully acknowledged.

For more information on this topic, for the next episode of the TPRC Talks “Joining with Thermoplastic Composites: Facing the Interface” on June 28, 2021 at 4:00 p.m. CET (10:00 a.m. EST).

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