Microstructure design for biodegradable magnesium alloys based on biocorrosion behavior by macroscopic and quasi-in-situ EBSD observations

被引：15
作者：
Wang, Xiang [1 ,2 ]
Chen, Chun [1 ,2 ]
Li, Lingyu [1 ,2 ]
Niu, Jialin [1 ,2 ]
Guan, Shaokang [3 ]
Huang, Hua [1 ,2 ]
Zeng, Hui [4 ]
Yuan, Guangyin [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy Net Forming, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Key State Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[3] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450002, Peoples R China
[4] Peking Univ, Shenzhen Hosp, Natl & Local Joint Engn Res Ctr Orthopaed Biomat, Shenzhen 518036, Peoples R China
来源：
CORROSION SCIENCE | 2023年 / 221卷
基金：
中国国家自然科学基金;
关键词：
A; Magnesium alloy; C; Grain orientation; Grain size; Biocorrosion; B; Quasi-in-situ EBSD; ZN-ZR ALLOY; AZ31 MG ALLOY; MECHANICAL-PROPERTIES; CORROSION BEHAVIOR; PURE MAGNESIUM; GRAIN-SIZE; YIELD ASYMMETRY; HEAT-TREATMENT; MICRO-TUBES; EXTRUSION;
D O I：
10.1016/j.corsci.2023.111366
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of alloying elements, grain size and orientation on biocorrosion resistance of Mg-2.1Nd-0.2Zn-0.5Zr (wt.%) were studied by immersion, electrochemical and quasi-in-situ electron back-scattering diffraction tests, to give a better microstructure design. The corrosion rate of this alloy is lower than that of pure Mg due to the smaller grain size and the presence of alloying elements in the corrosion layer. Preparation of samples with an average grain size smaller than 10 & mu;m and weakening basal texture was recommended. These results are useful for uncovering the corrosion behavior of JDBM alloys and pure Mg, and designing microstructures for biodegradable implants.
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页数：14
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