中國(guó)有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 34 No. 7 July 2024 |
（1. School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China;
2. Key laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China）
Abstract:Zn-4Ag-Mn alloy was successfully prepared by high-pressure solid solution (HPS) method to achieve high strength and antibacterial implant materials which can degrade uniformly. Microstructural characterization showed that HPS treatment on Zn-4Ag-Mn alloy resulted in 57.9% grain refinement, and the average size of the second phases was reduced to 10.2 μm compared with as-cast (AC) alloy. The compression, Vickers hardness and wear and friction tests showed particularly high mechanical properties of HPS alloys, including a compressive yield strength of 333.5 MPa and a Vickers hardness of Hv 89.5. Electrochemical corrosion, and immersion corrosion tests showed that HPS treatment optimized the corrosion resistance of the alloy with homogenous corrosion. Furthermore. The HPS-treated Zn-4Ag-Mn alloy exhibited excellent antibacterial properties through antibacterial testing, with an antibacterial rate of 71.6%. These results suggest that the HPS-treated Zn-4Ag-Mn alloy can be considered as a promising biodegradable implant material.
Key words: Zn-Ag-Mn alloy; high-pressure solid solution; high strength; homogenous corrosion; antibacterial property
