Laser Additive Manufacturing of Zinc Targeting for Biomedical Application

Yan Zhou, Jingwen Wang, Youwen Yang, Mingli Yang, Haizhong Zheng, Deqiao Xie, Dongsheng Wang, Lida Shen

Article ID: 501
Vol 8, Issue 1, 2022, Article identifier:501

VIEWS - 1181 (Abstract) 348 (PDF)


Biodegradable zinc (Zn) is expected to be used in clinical application like bone tissue engineering scaffolds, since it possesses favorable biocompatibility and suitable degradation rate. Laser powder bed fusion (LPBF), which is a typical additive manufacturing technique, offers tremendous advantages in fabricating medical devices with personalized geometric shape and complex porous structure. Therefore, the combination of LPBF and biodegradable Zn has gained intensive attention and also achieved rapid development in recent years. However, it severely challenges the formation quality and resultant performance of LPBF-processed Zn-based materials, due to the evaporation and element loss during laser processing. In this study, the current research status and future research trends for LPBF of Zn-based implants are reviewed from comprehensive viewpoints including formation quality, microstructure feature, and performance. The influences of powder characteristics and process parameters on formation quality are described systematically. The microstructure evolution, mechanical properties, as well as the degradation behavior are also discussed. Finally, the research perspectives for LPBF of Zn are summarized, aiming to provide guideline for future study.


Additive manufacturing; Zinc implant; Formation quality; Microstructure; Mechanical properties

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