期刊
CORROSION SCIENCE
卷 198, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2022.110124
关键词
Magnesium; CaCO3; Calcite; Corrosion resistance
资金
- National Key Research and Development Program of China [2018YFC1106703]
- Key Projects of the Joint Fund of the National Natural Science Foundation of China [U1804251]
- Startup Research Fund of Zhengzhou University [32340146]
A CaCO3 coating was developed by hydrothermal treatment to enhance the anti-corrosion property of biodegradable magnesium alloy. The coating showed excellent corrosion protection and a possible transformation during immersion.
To improve the anti-corrosion property of biodegradable magnesium alloy, a CaCO3 coating was developed by hydrothermal treatment. The prepared coatings generally consisted of three layers: a dark inner layer, a bright middle dense calcite layer and a bright outer loosely deposited CaCO3 & nbsp;layer. As the electrolyte concentration increased, the formation of the inner product layer and the deposition of loose aragonite products were considerably inhibited, whereas the middle calcite layer became more intact and compact, which conferred enhanced corrosion protection upon the coated samples. Additionally, this coating showed a possible transformation into calcium phosphate during immersion.
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