腐蚀
极限抗拉强度
材料科学
合金
核化学
电化学
植入
生物相容性
镁合金
冶金
化学
医学
外科
电极
物理化学
作者
Xian Tong,Yilong Dong,Runqi Zhou,Xinkun Shen,Yuncang Li,Yue Jiang,Hui‐Yuan Wang,Jinguo Wang,Jixing Lin,Cuié Wen
标识
DOI:10.1002/adhm.202303975
摘要
Magnesium (Mg) alloys are widely used in bone fixation and bone repair as biodegradable bone-implant materials. However, their clinical application is limited due to their fast corrosion rate and poor mechanical stability. Here, the development of Mg-2Zn-0.5Ca-0.5Sr (MZCS) and Mg-2Zn-0.5Ca-0.5Zr (MZCZ) alloys with improved mechanical properties, corrosion resistance, cytocompatibility, osteogenesis performance, and antibacterial capability is reported. The hot-extruded (HE) MZCZ sample exhibits the highest ultimate tensile strength of 255.8 ± 2.4 MPa and the highest yield strength of 208.4 ± 2.8 MPa and an elongation of 15.7 ± 0.5%. The HE MZCS sample shows the highest corrosion resistance, with the lowest corrosion current density of 0.2 ± 0.1 µA cm
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