Abstract
The microstructure, mechanical properties, corrosion, wear behaviour, and cytocompatibility of in situ Zn−Mg−Mg2Si alloys with different Mg2Si contents were evaluated. By increasing Mg−10Si content, the mechanical strength, hardness, and wear resistance improved while the corrosion rate and cytocompatibility increased and decreased. The Zn−Mg−0.6Mg2Si exhibited the best matching, including a moderate UTS (201 MPa), YS (171 MPa), hardness (100.4 HV), wear loss (0.8 mg), lowest degradation rate (27 μm/y), and highest cell viability (106.6%) among all alloys, showing a preferable candidate as biodegradable bone-implant material.
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