Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第28卷    第3期    总第228期    2018年3月

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文章编号:1004-0609(2018)-03-0579-07
Ni-P过渡层沉积时间和PTFE浓度对Ni-P-PTFE复合镀层的影响
董帅峰,李 伟,刘 平,张 柯,马凤仓,刘新宽

(上海理工大学 材料科学与工程学院,上海 200093)

摘 要: 通过控制化学镀Ni-P过程中的Ni-P层的沉积时间和Ni-P-PTFE镀液中PTFE的浓度,利用电子扫描显微镜(SEM)、X射线衍射仪(XRD)、纳米压痕仪、HSR-2M摩擦磨损试验机对Ni-P-PTFE复合镀层的硬度和摩擦磨损性能进行表征,研究化学镀过程中不同Ni-P过渡层沉积时间和PTFE浓度对Ni-P-PTFE复合镀层的硬度和摩擦性能的影响规律。结果表明:当Ni-P过渡层沉积时间为15 min,PTFE浓度(体积分数)为5%时,Ni-P-PTFE复合镀层的表面光滑均匀,与基体结合得更加紧密;Ni-P-PTFE层最高硬度为4.548 GPa,最低摩擦因数为0.145,复合涂层的力学和摩擦性能达到最优。

 

关键字: Ni-P-PTFE复合镀层;化学镀;Ni-P过渡层沉积时间;PTFE浓度;硬度;摩擦性能

Effects of Ni-P deposition time and PTFE concentration on Ni-P-PTFE composite coatings
DONG Shuai-feng, LI Wei, LIU Ping, ZHANG Ke, MA Feng-cang, LIU Xin-kuan, CHEN Xiao-hong, HE Dai-hua

School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

Abstract:In order to study the influence of Ni-P deposition time and PTFE concentration on the hardness and friction property of Ni-P-PTFE composite coating, by controlling the deposition time of Ni-P and the concentration of PTFE, the hardness and friction property of Ni-P-PTFE composite coating were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Nano Indenter and HSR-2M friction wear testing machine. The results show that when the deposition time of Ni-P transition layer is 15 min and the PTFE concentration (volume fraction) is 5%, the Ni-P-PTFE composite coating can achieve the smooth and uniform microstructure, and the strong bond force with substrate, together with the highest hardness of 4.548 GPa and the lowest friction coefficient of 0.145. Both mechanical property of the composite coating and lubrication property are the best.

 

Key words: Ni-P-PTFE composite coating; electroless; Ni-P deposition time; PTFE concentration; hardness; friction property

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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