Effects of compressive stress on the corrosion behavior of biodegradable zinc with tension-compression asymmetry under simulated physiological environment

被引：0
|
作者：
Zhang, Lu [1 ,2 ]
Zhang, Xin [1 ,2 ]
Dai, Jianwei [1 ,2 ,3 ]
Yang, Juyi [1 ,2 ]
Huang, Zijian [1 ,2 ]
Huang, Zhihai [1 ,2 ]
Guo, Chao [1 ,2 ]
Bai, Jing [1 ,2 ,4 ]
Xue, Feng [1 ,2 ]
Han, Linyuan [1 ,2 ]
Chu, Chenglin [1 ,2 ]
机构：
[1] Southeast Univ, Sch Mat Sci & Engn, Nanjing 211189, Peoples R China
[2] Southeast Univ, Jiangsu Key Lab Adv Met Mat, Nanjing 211189, Peoples R China
[3] Jiangsu JITRI Surface Engn Technol Res Inst, Taizhou 225309, Peoples R China
[4] Southeast Univ, Inst Med Devices Suzhou, Suzhou 215163, Peoples R China
来源：
CORROSION SCIENCE | 2025年 / 242卷
关键词：
Biodegradable Zn; Simulate physiological stress environment; Compressive stress; Corrosion behavior; IN-VITRO DEGRADATION; FLUID SHEAR-STRESS; MAGNESIUM ALLOY; PURE ZINC; INITIAL FORMATION; STENT; DEFORMATION; TEMPERATURE; PRODUCTS; PITS;
D O I：
10.1016/j.corsci.2024.112566
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Biodegradable Zn vascular stents are compressed by the vessel wall while maintaining blood flow, which may lead to unpredictable deterioration of the stent due to stress corrosion. This work investigated the mechanical and corrosion behavior of Zn in a coupled environment of compressive stress and artificial plasma. The corrosion rate of Zn increases as compressive stress rises. However, the acceleration effect gradually decreased in contrast to our previous work on tensile stresses, which can be attributed to the tension-compression asymmetry of Znmetal. Meanwhile, the corrosion mechanism of Zn was compared, and numerical models for stresses and corrosion rates were established.
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页数：14
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