本研究中，以在鹼性的環境下，次磷酸鈉為還原劑、檸檬酸鈉為錯合劑進行無電鍍鎳鐵磷的反應。同時，也嘗試加入其他的還原劑-聯氨於無電鍍鍍液及改變鍍液的pH值，觀察對析鍍成分與析鍍速率的影響。然而，在掃描式電子顯微鏡的觀察下，發現添加聯氨所析鍍出來的鍍層表面分佈了許多裂縫；在未加入聯氨的鍍液，改以加入硫酸氨作為緩衝劑，其表面鍍層無裂痕的分布，此外其析鍍速率為10~14 μm/hr。另外，元素分析的結果顯示無電鍍鎳鐵磷依據pH的差異，鐵的含量可控制在2~6 wt.%、磷的含量在8~10 wt.%，推論出pH值決定於鍍層的組成與其析鍍的速率。另外，經過熱處理的無電鍍鎳鐵磷合金在XRD繞射儀的幫助下，觀察其結晶的晶態，並藉由恆電位儀對鎳鐵磷合金進行抗腐蝕的分析。

Electroless Ni-Fe-P alloys have been deposited from a basic plating bath having sodium citrate as a complexing agent. Effects of added reducing agents (sodium hypophosphite and hydrazine hydrate) and pH values of plating bath were studied. The surface morphology and microstructures were examined under a scanning electron microscope equipped with an energy dispersive spectrometer (EDS). The electroless plating using hydrazine hydrate as reductants was found with many crackings on it from SEM photos. The electroless alloys using sodium hypophosphite as reductants and ammonium sulfate as a buffer agent does not contain any crackings. The deposition rate is approximately 10-14 μm/hr. In addition, the percentage of iron and phosphorus in deposits are respectively approximately 2-6 wt.% and 8-10 wt.%. Moreover, composition and the deposition rate of the electroless Ni-Fe-P alloys depend on pH in the bath. The structure of as-plated alloys at all conditions is mainly amorphous. The crystallization behavior of Ni-P-Fe alloys with heat treatment were studied by using X-ray diffractometry. Moreover, the anti-corrosive properties of Ni-Fe-P alloys were measured with a potentiostat.

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