Refinement and protectiveness of the calcium carbonate coating on Mg substrates
Source abstract
Abstract
In this work, conversion solutions with pH of 6.2–7.5 were prepared by a new method of bubbling CO into a saturated Ca(OH) solution to refine the calcium carbonate coating (CCC) on pure Mg and AZ91 alloy. Effects of solution condition and Mg substrate on CCC formation were studied. The CCC had the same constituent on varied substrates. In the pH 6.2 solution, the CCC consisted of aragonite. Increasing solution pH led to increased calcite content in CCC. The CCC grain-refinement occurred on the AZ91 owing to the micro-galvanic effect. Both phase constituent and grain size significantly influenced the CCC protectiveness.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Calcium Carbonate Crystallization and Inhibition · Corrosion Behavior and Inhibition · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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