The deteriorated degradation resistance of Mg alloy microtubes for vascular stent under the coupling effect of radial compressive stress and dynamic medium

被引：17

作者：

Liu, Mengyao ^{[1
]}

Zhang, Yabo ^{[1
]}

Zhang, Qingyuan ^{[1
]}

Wang, Yan ^{[1
]}

Mei, Di ^{[1
,2
]}

Sun, Yufeng ^{[1
,2
]}

Wang, Liguo ^{[1
,2
,3
]}

Zhu, Shijie ^{[1
,2
,3
]}

Guan, Shaokang ^{[1
,2
,3
]}

机构：

[1] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China

[2] Henan Key Lab Adv Magnesium Alloys, Zhengzhou 450002, Peoples R China

[3] Minist Educ, Key Lab Adv Mat Proc & Mold, Zhengzhou 450002, Peoples R China

来源：

JOURNAL OF MAGNESIUM AND ALLOYS | 2024年 / 12卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Mg alloy; Microtubes; Degradation behavior; Radial compressive stress; Dynamic conditions; Y-ND ALLOY; SIMULATED BODY-FLUID; CORROSION CRACKING; MAGNESIUM ALLOY; IN-VITRO; BEHAVIOR; MICROSTRUCTURE; TUBES; FLOW; BIOMATERIALS;

D O I：

10.1016/j.jma.2022.05.004

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The degradation of Mg alloys relates to the service performance of Mg alloy biodegradable implants. In order to investigate the degradation behavior of Mg alloys as vascular stent materials in the near service environment, the hot-extruded fine-grained Mg-Zn-Y-Nd alloy microtubes, which are employed to manufacture vascular stents, were tested under radial compressive stress in the dynamic Hanks' Balanced Salt Solution (HBSS). The results revealed that the high flow rate accelerates the degradation of Mg alloy microtubes and its degradation is sensitive to radial compressive stress. These results contribute to understanding the service performance of Mg alloys as vascular stent materials. (c) 2022 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ) Peer review under responsibility of Chongqing University

引用

页码：573 / 585

页数：13