脉冲电沉积纳米晶镍镀层的织构与硬度  

Texture and Hardness of Nanocrystalline Nickel Coatings Prepared by Pulse Electrodeposition

作　　者：陈晓明[1] 陈吉[1] 许志显 孙彦伟[1] 朴楠[1] 

机构地区：[1]辽宁石油化工大学机械工程学院,辽宁抚顺113001

出　　处：《电镀与环保》2016年第3期18-19,共2页Electroplating & Pollution Control

基　　金：辽宁省自然科学基金(No.201202127)

摘　　要：采用脉冲电沉积方法在304不锈钢表面制备出具有不同织构的纳米晶镍镀层。采用X射线衍射仪对镀镍层的结构进行了表征,并用超显微微米压痕仪测量了镀镍层的硬度。结果表明:随着电镀时间的延长,镀镍层的晶粒尺寸变化不大,约为(14±2)nm;择优晶面由(111)向(200)转变;硬度由6070 MPa降至3 750 MPa。织构的变化显著影响镀镍层的硬度,随着织构系数TC(111)的降低,镀镍层的硬度逐渐下降。Nanocrystalline nickel coatings with different texture were prepared on 304 stainless steel surface by pulse electrodeposition. Structure of the nickel coatings was characterized by X-ray diffracmeter, and hardness of the nickel coatings was measured by ultra-microscopic indentation tester. Results showed that, with the prolonging of electrodeposition time, grain size of the nickel coatings has no obvious change, was about （14±2） nm. However, the preferred crystal plane transform from （111） to （200）, and the hardness decreased from 6 070 MPa to 3 750 MPa. Texture change has obvious effect on the hardness of nickel coating, the hardness decreased graduallv with the reducing of texture coefficient TC（111）.

关 键 词：脉冲电沉积 纳米晶镍镀层 织构 硬度 

分 类 号：TQ153[化学工程—电化学工业]