The misalignment between degradation rate and mechanical integrity of Mg-Zn-Y-Nd alloy during the degradation evaluation in modified Hanks’solutions  

作　　者：Di Mei Qingyuan Zhang Yaqian Li Mengyao Liu Wenkai Li Pingli Jiang Ruiqing Hou Shijie Zhu Liguo Wang Shaokang Guan 

机构地区：[1]School of Materials Science and Engineering&Henan Key Laboratory of Advanced Magnesium Alloy,Zhengzhou University,Zhengzhou 450001,China [2]Center of Advanced Analysis&Gene Sequencing,Zhengzhou University,Zhengzhou 450001,China [3]Key Laboratory of Advanced Materials Processing&Mold Ministry of Education,Zhengzhou 450002,China

出　　处：《Journal of Magnesium and Alloys》2024年第9期3661-3674,共14页镁合金学报（英文）

基　　金：support from the Na-tional Key Research and Development Program of China(2021YFC2400703);the Key Projects of the Joint Fund of the National Natural Science Foundation of China(U1804251);support from Natural Science Foundation of Henan Provincial(222300420309).

摘　　要：The degradation behavior of biodegradable Mg alloys has become a research hotspot in the fields about biodegradable metallic materials.While the most of the related publications mainly focused on the degradation rate of Mg-based materials,but rare to care about the changes of their mechanical properties during the immersion period,which can significantly affect their service performance.The link between residual strength and Mg degradation is not appreciated enough.In this work,a series media were constructed based on Hanks’solution,the effects of inorganic ions on the degradation rate and mechanical integrity of Mg-Zn-Y-Nd alloy were investigated.The results indicated that the degradation behavior of Mg alloy was mainly controlled by degradation products and there is no direct correspondence between the degradation rate change and mechanical integrity of Mg alloy.The relevant findings are beneficial for selecting the monitoring index in Mg corrosion tests and evaluating the service reliability of Mg alloys for biomedical applications.

关 键 词：Magnesium alloy Degradation rate Mechanical integrity Hanks’solution 

分 类 号：TG146.22[一般工业技术—材料科学与工程]