Fluid-induced corrosion behavior of degradable zinc for stent application

• DOI: 10.1016/j.jmst.2021.02.050
• Publication Date: 2021-05-02T00:23:58Z
• Authors: Kai Chen; Xuenan Gu; Hui Sun; Hongyan Tang; Hongtao Yang; Xianghui Gong; Yubo Fan
• Keywords: 01 natural sciences; 6. Clean water; 0104 chemical sciences

Abstract The influence of laminar flow on the corrosion of pure zinc (Zn) and cell response was investigated and compared with the static measurements. The results revealed that laminar flow accelerated the corrosion and enhanced the localized corrosion of pure Zn. The dynamic corrosion rate was 0.184 mm/yr after 168 h corrosion. More corrosion products were formed under flow condition, which were mainly composed of Zn3(PO4)2·4H2O, Ca3(PO4)2, ZnO and Zn5(OH)6(CO3)2. Moreover, the adhered rat aortic endothelial cells (RAEC) on Zn samples exhibited notably cell loss and round configuration under laminar flow.