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摩擦輔助噴射電沉積納米晶鎳的電化學(xué)腐蝕行為
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國(guó)家自然科學(xué)基金(青年基金)(51105204)；教育部博士點(diǎn)基金(20113218120022)；南京航空航天大學(xué)青年科技創(chuàng)新基金(NS2011009)


Electrochemical Corrosion Behavior of Nanocrystalline Nickel Prepared by Friction Aided Jet Electrodeposition
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    摘要:

    采用摩擦輔助噴射電沉積工藝和傳統(tǒng)噴射電沉積工藝制備納米晶鎳，用TEM對(duì)比分析了二者的組織結(jié)構(gòu)，用電化學(xué)極化法研究了2種納米晶鎳層在3.5%NaCl(質(zhì)量分?jǐn)?shù))溶液及1 mol/L H2SO4溶液中的腐蝕行為。結(jié)果表明，摩擦輔助噴射電沉積結(jié)晶過(guò)程更加均勻，制備的納米晶鎳層組織致密，晶粒細(xì)小，平均晶粒達(dá)到9.77 nm；在2種腐蝕溶液中，摩擦輔助噴射電沉積制備的納米晶鎳的電化學(xué)腐蝕性能均優(yōu)于傳統(tǒng)噴射電沉積；在NaCl溶液中，摩擦輔助噴射電沉積所制納米晶鎳在腐蝕過(guò)程中有鈍化膜產(chǎn)生。并指出晶粒大小與微觀缺陷是影響納米晶鎳耐腐蝕性能的2個(gè)重要因素

    Abstract:

    Nanocrystalline nickel was prepared by friction aided jet electrodeposition and traditional jet electrodeposition. The structure of two Nickel deposition layers was studied by TEM, and the corrosion behavior in 3.5wt%NaCl solution and 1 mol/LH2SO4 solution was studied by electrochemical polarization method. The results show that nano-crystalline nickel prepared by friction aided jet electrodeposition has a compact structure and an average grain size of 9.77 nm. In two corrosion solutions, the electrochemical corrosion resistance of nanocrystalline nickel prepared by friction aided jet electrodeposition can be both better than that prepared by traditional jet electrodeposition. Only nanocrystalline nickel prepared by friction aided jet electrodeposition generates passive film in the corrosion process. The grain size and micro-defects are two important factors that affect the corrosion resistance of nanocrystalline nickel

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朱 軍,沈理達(dá),田宗軍,劉志東,黃因慧,王桂峰.摩擦輔助噴射電沉積納米晶鎳的電化學(xué)腐蝕行為[J].稀有金屬材料與工程,2013,42(11):2371~2375.[Zhu Jun, Shen Lida, Tian Zongjun, Liu Zhidong, Huang Yinhui, Wang Guifeng. Electrochemical Corrosion Behavior of Nanocrystalline Nickel Prepared by Friction Aided Jet Electrodeposition[J]. Rare Metal Materials and Engineering,2013,42(11):2371~2375.]
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  • 收稿日期:2012-11-20
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