Mechanism study on improving the corrosion resistance of screw rolled Mg-Zn-Ca alloy by nano-MgO addition

被引：0
|
作者：
Zheng, Haoran [1 ]
Chen, Minfang [2 ]
Li, Zhen [3 ]
Yu, Leiting [2 ]
机构：
[1] Shandong Univ Aeronaut, Sch Mechatron Engn, Jining 256600, Shandong, Peoples R China
[2] Tianjin Univ Technol, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China
[3] Luoyang Ship Mat Res Inst LSMRI, State Key Lab Marine Corros & Protect, Qingdao 266237, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 31卷
关键词：
n-MgO/Mg-Zn-Ca composite; Screw rolling; Microstructure; Corrosion resistance; IN-VITRO; MAGNESIUM; BEHAVIOR; MICROSTRUCTURE; COMPOSITES; SR;
D O I：
10.1016/j.jmrt.2024.07.056
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To reduce the corrosion rate of biodegradable magnesium alloys, n-MgO/Mg-Zn-Ca composites (SR-3ZXM) were prepared using nano-MgO (n-MgO) reinforcement and screw rolling (SR). n-MgO addition and SR refined the grain size and improved the passivation ability and corrosion resistance of SR-3ZXM. After SR, adding n-MgO reduced the corrosion current density of SR-3ZXM to 20.99 mu A/cm2. The corrosion rate calculated based on the material weight loss decreased to 0.88 mm/y, which is attributed to the grain size refinement and variation of secondary phase fraction. Thus, n-MgO addition and SR change the corrosion mechanism and improve the corrosion resistance of SR-3ZXM.
引用
收藏
页码：3104 / 3116
页数：13
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