|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Surface Engineering IV
||Towards the Tuning of the Degradation Behaviour of Pure Biodegradable Zn by Laser Texturing
||Carlo Alberto Biffi, Jacopo Fiocchi, Sofia Gambaro, Ausonio Tuissi
|On-Site Speaker (Planned)
||Carlo Alberto Biffi
The present work concerns the surface modification of biodegradable pure Zn for controlling the degradation rate in the prospective of its use for temporary implants.
The material, produced by cold rolling, was laser textured using two different ranges of pulse durations, nanosecond and femtosecond, for tuning the surface morphology and microstructure.
The laser process was studied by varying different process parameters like power, scan speed and hatch spacing for both the laser sources. The effect of these parameters was correlated to the surface morphology, characterized with scanning electron microscope images, X-ray diffraction and e3D profilometry.
Once selected the most promising laser conditions, the degradation performances of the laser textured surfaces were analyzed and compared with the ones of the untreated material.
It was found that the laser surface modification can tune the surface degradation behaviour with respect with the base material, due to the induced morphology, microstructure and oxides produced.
||Biomaterials, Process Technology, Surface Modification and Coatings