Corrosion Behavior of Different Coatings Prepared on the Surface of AZ80 Magnesium Alloy in Simulated Body Fluid

被引：27
作者：
Shen, Yongshui [1 ]
He, Liuyong [1 ]
Yang, Zengyuan [1 ]
Xiong, Ying [1 ]
机构：
[1] Zhejiang Univ Technol, Key Lab Special Purpose Equipment & Adv Proc Tech, Minist Educ, Coll Mech Engn, Hangzhou 310014, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2020年 / 29卷 / 03期
基金：
中国国家自然科学基金;
关键词：
dynamic corrosion; electrochemistry; laser shock peening; magnesium alloy; micro-arc oxidation; MICRO-ARC OXIDATION; COMPOSITE COATINGS; RESEARCH PROGRESS; GRAIN-SIZE; MG ALLOYS; RESISTANCE; CRACKING; BIOCOMPATIBILITY; BIODEGRADATION;
D O I：
10.1007/s11665-020-04682-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A laser shock peening (LSP) layer, a micro-arc oxidation (MAO) bio-coating, and an LSP/MAO bio-composite coating were fabricated on the surface of AZ80 magnesium (Mg) alloy. The LSP-, MAO-, and LSP/MAO-treated samples were subjected to a dynamic immersion test for 24 h in simulated body fluid (SBF) with a flow rate of 1 mL/s. The corrosion evolution behavior of the three samples in SBF solution was investigated by electrochemical tests at 0.5, 2, 4, 12, 16, and 24 h during the dynamic immersion. The results indicated that the three surface-treated samples exhibited different corrosion behaviors at different degradation stages. The LSP/MAO sample showed the best corrosion resistance. The anti-corrosion effect of the LSP nanocrystalline layer on the substrate material during dynamic degradation is discussed.
引用
收藏
页码：1609 / 1621
页数：13
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