占空比对Ni-WC纳米复合镀层耐蚀性及硬度的影响  

Effect of Duty Cycle on the Corrosion Resistance and Hardness of Ni-WC Nano-composite Coatings

作　　者：刘元福[1,2] 陈吉[1] 袁野 陈晓明[1] 许志显 黄澳 宋见[1] LIU Yuan-fu CHEN Ji YUAN Ye HUANG Ao CHEN Xiao-ming XU Zhi-xian SONG Jian(Department of Mechanical Engineering, Liaoning Shihua University, Fushun 113001, China Dalian Salt Industry Co. ,Ltd. , Dalian 116021, China Chifeng Dajingzi Tin Industry Co. ,Ltd. , Chifeng 025250, China)

机构地区：[1]辽宁石油化工大学机械工程学院,辽宁抚顺113001 [2]大连盐业有限公司,辽宁大连116021 [3]赤峰市大井子锡业有限公司,内蒙古赤峰025250

出　　处：《电镀与环保》2017年第2期5-7,共3页Electroplating & Pollution Control

摘　　要：采用脉冲电沉积法在304不锈钢基体上制备出Ni-WC纳米复合镀层,并研究了占空比对Ni-WC纳米复合镀层耐蚀性及硬度的影响。结果表明:随着占空比的增大,Ni-WC纳米复合镀层的平均晶粒尺寸先减小后增大,硬度先增大后减小;当占空比为50%时,Ni-WC纳米复合镀层的平均晶粒尺寸最小,耐蚀性最好,硬度最大。Ni-WC nano-composite coatings were prepared on 304 stainless steel substrate by using pulse electrodeposition. Effect of duty cycle on the corrosion resistance and hardness of Ni-WC nano-composite coatings was investigated. Results showed that, with the increasing of duty cycle, the average grain size of Ni-WC nano-composite coatings decrease first and then increase, while the hardness of Ni-WC nano-composite coatings increase first and then decrease. When duty cycle was 50%, the prepared Ni-WC nano-composite coating has the smallest average grain size, the corrosion resistance was best and the hardness was highest.

关 键 词：脉冲电沉积 Ni-WC纳米复合镀层 占空比 耐蚀性 硬度 

分 类 号：TQ153[化学工程—电化学工业]