Other

Moohong Seo

Joung Soo Kim

Yun Soo Lim

Seong Sik Hwang

Disclosed is a method of electroplating a Ni&mdash;Fe&mdash;P alloy using a sulfamate solution and, in particular, a method of electroplating a Ni&mdash;Fe&mdash;P alloy using a plating solution containing nickel sulfamate, iron sulfamate, phosphorous acid, and a buffer agent. The method is advantageous in that a residual stress of a deposited layer is very low and has stable mechanical properties, and excellent thermal and corrosion resistance because the deposited layer is obtained by electroplating the Ni&mdash;Fe&mdash;P alloy using the sulfamate solution useful in a high rate plating process. Furthermore, the method can be applied to various parent metals such as stainless steel, Inconel and iron alloys, and to various fields because the chemical compositions of the deposited layer are readily controlled by varying the concentration of the plating solution.

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Daejeon, South Korea

Moohong Seo