Qiangsheng Dong , Cheng Wang , Yunsong Chen , Kun Qian , Xingxing Zhou , Xi Tan , Fujun Fan , Zhixin Ba , Chenglin Chu , Feng Xue , Jing Bai
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Micro/nano-bilayer phosphate-loaded and dual stimuli-responsive self-healing coating on Mg alloy
A micro/nano-bilayer self-healing coating on Mg-2Zn alloy, designated as PEO-LDH-P, was composed of plasma electrolytic oxidation (PEO) layer as a physical barrier, Mg-Mn layered double hydroxide as a corrosion inhibitor container, and phosphate ion as a corrosion inhibitor. Nano-scale LDH was prepared on PEO-coated Mg alloy through reactions in MnCl2 and Mg(NO3)2 solutions, successively. The phosphate ions were not only loaded into LDH interlamination but also formed as micro-sheet MgHPO4 after soaking in Na2HPO4 solution. During Mg corrosion, phosphate ions were released from both LDH intercalation by anion exchange and MgHPO4 due to pH increase, endowing PEO-LDH-P coating with self-healing function.
期刊介绍：
Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies.
This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.
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