占空比对脉冲电镀铁镍合金组织及电磁屏蔽性能的影响

发布时间：2018-05-03 03:22

本文选题：铁 + 镍合金　；参考：《电镀与涂饰》2017年03期

【摘要】：采用脉冲电镀法在2024铝合金基体上制备Fe Ni合金薄膜,研究了脉冲占空比对镀层组织形貌和晶体结构的影响。结果表明,所制FeNi_80合金镀层为典型的面心立方晶体结构,具有(111)和(200)晶面择优取向。提高脉冲占空比,镀层粗糙度增大。脉冲占空比为30%时所制备的200μm厚FeNi_80合金镀层在10~100 kHz低频磁场下的屏蔽效能达到36~55 dB。
[Abstract]:Fe Ni alloy thin films were prepared on 2024 aluminum alloy substrate by pulse electroplating. The effect of pulse duty ratio on the microstructure and crystal structure of the coating was studied. The results show that the FeNi_80 alloy coating has a typical face-centered cubic crystal structure with preferred orientation of crystal plane. The roughness of the coating increases with the increase of pulse duty cycle. The shielding efficiency of the 200 渭 m thick FeNi_80 alloy coating prepared by the pulse duty cycle of 30 渭 m in a low frequency magnetic field of 10 ~ 100 kHz is 36 ~ 55 dB.
【作者单位】：北京有色金属研究总院;
【分类号】：TQ153.2

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