针对氢在镀锌层中的扩散渗透性，采用电化学氢渗透技术对Ｆｅ／电镀Ｚｎ双层试样进行了研究．得到了镀锌层的厚度对镀层氢扩散系数以及氢稳态渗透通量的影响方式．研究结果表明，电镀锌层中氢扩散系数约为１０－１１ｃｍ２·ｓ－１数量级，镀锌层能够阻滞氢的扩散渗透．相应地，随镀层厚度增大，试样氢稳态渗透通量和氢有效扩散系数减小
The electrochemical hydrogen_permeation technique was used to study hydrogen permeation through zinc electrodeposit with bilayer specimens of Fe substrate/zinc electrodeposit.The effect of coating thickness on hydrogen diffusion coefficient and hydrogen steady-state flux was studied. The results showed that hydrogen diffusion coefficient was approximately in the range of 10-11 cm2s-1 rank and zinc coating could retard hydrogen permeation. Accordingly, hydrogen steady_state flux and effective diffusion coefficient declined while the coating thickness increased.
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