The effect of Si on the corrosion of an Fe-B-Si alloy in liquid zinc was investigated. Corrosion tests of Fe-B-Si were conducted in a pure zinc bath (99.99 wt pct Zn). The results indicated that Si in α-Fe phase had a significant effect on the structure and evolution of corrosion interfaces in a directional Fe-B-Si alloy immersed in liquid zinc. Moreover, Si enrichment of the corroded interface induced changes in the mode of element diffusion, thereby affecting the Fe-Zn reaction and the quantity and volume of Fe-Zn compound. The Fe-Zn compound was occluded with the residual Fe₂B closest to the corrosion interface, this structure could prevent direct contact between the liquid zinc and the alloy, and firm rooting of the compound at the interface. Therefore, Si in α-Fe phase had a significant effect on the corrosion resistance of Fe-B-Si alloy in liquid zinc. At a Si content of 0.318 wt pct, the densest composite corrosion product layer and highest corrosion resistance were obtained.

研究了Si对Fe-B-Si合金在液态锌中腐蚀的影响。Fe-B-Si的腐蚀测试在纯锌浴（99.99 wt％的Zn）中进行。结果表明，α-Fe相中的Si对浸入液态锌中的定向Fe-B-Si合金中的腐蚀界面的结构和演变有显着影响。此外，腐蚀界面的Si富集引起元素扩散方式的变化，从而影响Fe-Zn反应以及Fe-Zn化合物的数量和体积。Fe-Zn化合物被残留的Fe ₂吸附B最靠近腐蚀界面，这种结构可以防止液态锌与合金之间的直接接触，并防止化合物在界面牢固扎根。因此，α-Fe相中的Si对Fe-B-Si合金在液态锌中的耐蚀性具有显着影响。在Si含量为0.318wt％的情况下，获得了最致密的复合腐蚀产物层和最高的耐腐蚀性。