Significant influence of trace Li on the mechanical properties, corrosion behavior, and antibacterial properties of biodegradable Zn–4Cu alloys

作者：Shiyu Huang, Heng Liu, Yanjing Su, Lijie Qiao, Yu Yan · 发表于：Journal of Material Science and Technology · 年份：2023 · DOI：10.1016/j.jmst.2022.12.045 · 被引用次数：32 · 研究领域：Magnesium Alloys: Properties and Applications、Corrosion Behavior and Inhibition、Aluminum Alloys Composites Properties

In this work, trace Li was introduced to strengthen Zn–4Cu alloys. The results indicated that trace amounts of Li contributed to a significant increase in strength, resulting in an acceptable loss of elongation at fracture. Additionally, Li in the form of LiZn 4 led to more intensive galvanic corrosion, which accelerated the early corrosion rate. The release of a large amount of Zn 2+ , caused by the addition of Li, affected the phase composition of the main Zn-containing corrosion products. Moreover, the inhibition effect of the alloy on Staphylococcus aureus ( S. aureus ) was enhanced by the addition of 0.02 wt.% Li.