Al-induced electroless process is used to fabricate Sn films on the mild steel substrates. The deposition reaction was performed by designing a Fe-Al galvanic couple where the optimum geometric area ratio between Fe-Al was 0.3. Additionally, NaBH 4 and NaH 2 PO 2 reducing agents were also added to enrich the deposit morphology and composition. The film surfaces were characterized by scanning electron microscopy, energy-dispersive x-ray spectroscopy and x-ray diffraction measurements. The analysis showed dense, uniform tin deposits with the presence of boron and phosphorous. The x-ray diffraction results confirmed the polycrystalline tetragonal structure with mostly (211) texture having an average 18 nm crystallite size. The anti-corrosion performance of these tin films has been studied by immersion in saltwater, open circuit potential measurement test, potentiodynamic polarization test, and electrochemical impedance spectroscopy. The effect of the co...

中文翻译：

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低碳钢基材上铝诱导的化学镀锡膜的表征以防腐蚀

铝诱导化学镀工艺用于在低碳钢基材上制备Sn膜。通过设计Fe-Al之间的最佳几何面积比为0.3的Fe-Al电偶来进行沉积反应。另外，还添加了NaBH 4和NaH 2 PO 2还原剂以丰富沉积物的形态和组成。膜表面通过扫描电子显微镜，能量色散X射线光谱法和X射线衍射测量来表征。分析表明，在存在硼和磷的情况下，致密，均匀的锡沉积物。X射线衍射结果证实了具有大部分（211）织构的多晶四方结构具有平均18nm的微晶尺寸。通过浸入盐水中研究了这些锡膜的防腐性能，开路电势测试，电势极化测试和电化学阻抗谱。合作的效果