Influence of process parameters on pulse electroforming of nickel-rich nickel-cobalt alloys from sulfamate electrolyte
Nickel-cobalt alloys have a wide range of industrial applications because of high strength,good corrosion resistance,heat-conductive,etc.As an example,they are used in the electroforming of moulds for die-casting and plastics and in electrotyping.In this paper,experiments on pulse electroforming of nickel-rich nickel-cobalt alloys were studied on SUS304 substrates from sulfamate electrolyte with different average current density,pulse frequency,duty cycle and different bath temperature.It is clearly observed in the nickel-rich deposits that effect of cobalt content gradually increases as the Co2+/Ni2+ concentration ratio and duty cycle increasing;The Co content seems to hardly change when pulse frequency changed from 500 Hz to 1000 Hz;The Co content decreases as current density increasing.High Co content and smooth surface topography can be obtained by reducing current density,increasing bath temperature and pulse duty cycle.
nickel-rich nickel-cobalt alloys pulse electroforming process parameters
Hong-you Li Ming-ming Yu Yi Wang Mao-lin Shi
College of mechanical engineering and automation, Huaqiao University, Xiamen, China,361021
国际会议
厦门
英文
440-443
2012-12-28（万方平台首次上网日期，不代表论文的发表时间）