Abstract
ABSTRACT In this study, a chemical reaction process was designed to prepare the endogenous conversion coating on a smooth and clean amorphous alloy surface, solving the problem of non-wetting of the interface between the iron-based amorphous alloy and the resin during the packaging process. The best preparation condition is to react in salt solution at 85°C for 2 h. At this time, the conversion film with a thickness of approximately 1 μm is formed uniformly on the surface of Fe78Si13B9 amorphous alloy. The composition of the designed conversion film was primarily Fe oxide and FeSi complex, and the surface of the conversion film was covered with tiny etched voids and evenly distributed oxidation corrosion circles. This structure is conducive to epoxy resin fully infiltrating the surface of amorphous alloys and achieving good composites with other materials.
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