Study of the structures of pulse plating Zn-Fe deposits
- 化学化工－已发表论文 
Pulse plating Zn-Fe (6.0 wt%-7.4 wt%) deposits have been studied by means of X-ray diffraction. The results showed that pulse current parameters affected not only the textures of the deposits but also their phase constitutions. Under the condition of average current density of 6 A/dm(2) in pulse plating, when pulse frequency was larger than or equal to 100 Hz, the Zn-Fe deposits were identified as h.c.p. eta-phase; if pulse frequency was less than or equal to 1 Hz, the Zn-Fe deposits were of eta- and monoclinic zeta-phases. At constant average current density and pulse frequency, an increase of the duty cycle results in an increase of the (101) texture coefficient of the Zn-Fe deposits, while the decrease of the duty cycle favoured the formation of a deposit with (112) texture. A Zn-Fe deposit with (112) highly preferred orientation was obtained.