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電沉積制備Ni/nano-WC復(fù)合鍍層的工藝及機理研究
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南昌大學(xué)

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國家自然科學(xué)基金項目（面上項目，重點項目，重大項目）


Electrodeposition and mechanism of Ni/nano-WC composite coatings
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School of Materials Science and Engineering,Nanchang University

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the National Natural Science Foundation of China (No. 51864034,51661022,51161018,51471083, 51364036 and 51271090)

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    摘要:

    采用脈沖電沉積法制備了納米WC強化鎳基復(fù)合鍍層。探究了不同表面活性劑（十二烷基硫酸鈉）添加量以及WC粉的濕磨預(yù)處理對Ni/nano-WC復(fù)合鍍層表面形貌、顆粒分布、微觀結(jié)構(gòu)以及顯微硬度的影響。表面活性劑的添加和對WC濕磨處理有助于細化鍍層晶粒，得到WC顆粒分布均勻的致密鍍層。鍍層中WC含量以及鍍層的顯微硬度隨著表面活性劑的添加量的增加而增加，但過量會使效果變差，理想的SDS添加量為0.15g/l,濕磨10h。

    Abstract:

    In this study, nickel matrix composite coatings reinforced by nano WC were prepared by pulse current (PC) electrodeposition. The effects of surfactant sodium dodecyl sulfate (SDS) concentration and wet-milling treatment of WC particles on surface morphologies, distribution of particles, microstructures and microhardness values of Ni/nano-WC composite coatings were all investigated and the results were discussed. The results revealed formation of compact coatings with high contents of embedded WC particles and uniform distribution in presence of SDS and under wet-milling treatment of WC particles. The microhardness of the composite coatings also improved. The optimal coating was obtained by adding 0.15 g/l SDS under wet-milling for 10 h.

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石興旺,程建奕,葉楠,唐建成,陳偉聰.電沉積制備Ni/nano-WC復(fù)合鍍層的工藝及機理研究[J].稀有金屬材料與工程,2021,50(1):71~77.[Shi Xingwang, Cheng Jianyi, Ye Nan, Tang Jiancheng, Chen Weicong. Electrodeposition and mechanism of Ni/nano-WC composite coatings[J]. Rare Metal Materials and Engineering,2021,50(1):71~77.]
DOI：10.12442/j. issn.1002-185X.20191018

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  • 收稿日期:2019-12-02
  • 最后修改日期:2020-01-10
  • 錄用日期:2020-02-20
  • 在線發(fā)布日期: 2021-02-05
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