Ultrahigh corrosion resistance of Mg-Er alloys by two-layer barrier from oxide film and triangular prism-like Mg(OH)2
Source abstract
Abstract
An ultrahigh corrosion resistance of Mg-Er alloys was achieved via a simple method by forming an Er 2O 3 oxide film using a high temperature treatment. The corrosion rate of Mg-8.1 wt% Er alloy with oxide film is only 0.12 mm/y in 3.5 wt% NaCl solution, even lower than that of high-purity magnesium. The triangular prism-like Mg(OH) 2 was observed for the first time in corrosion field of Mg alloys, which was terrific compact and effectively hindered the further corrosion. A mechanism of two-layer barrier coming from the oxide film and triangular prism-like Mg(OH) 2 was proposed to contribute the outstanding corrosion resistance.
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Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Hydrogen Storage and Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (100+)
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