周月波,赵国刚,张海军

• 1:黑龙江科技学院材料科学与工程学院

摘要(Abstract)：

采用复合电镀技术,通过向普通电镀溶液中分别加入平均粒度为40 nm和1~5μm的Cr粉的方法在Ni基材上制备了一种金属Ni基纳米Cr粒子弥散的Ni-Cr纳米复合镀层和一种微米Cr粒子弥散的Ni-Cr复合镀层。混合盐(75 wt%Na2SO4+25wt%NaCl)750℃热腐蚀行为结果表明:与微米Cr粒子弥散的Ni-12.4 wt%Cr复合镀层相比,Ni-11wt%Cr纳米复合镀层表现出更好的耐腐蚀性能。SEM/EDAX、XRD和TEM分析表明,在相同的Cr颗粒含量条件下,Cr颗粒尺寸的降低提高了Ni-Cr复合镀层的抗腐蚀性能,这是因为Cr颗粒尺寸的降低和基体Ni晶粒的细化增加了单位面积内的Cr2O3形核率,缩短不同Cr2O3核间的距离,与此同时基体Ni晶粒的细化有利于保护性氧化物形成元素Cr沿晶界向腐蚀前沿的快速扩散,从而加速了保护性Cr2O3膜的快速形成。

关键词(KeyWords)： 复合电镀;Ni-Cr复合涂层;热腐蚀;尺寸效应

Abstract:

Keywords:

基金项目(Foundation): 黑龙江省教育厅科技项目(11531319);; 黑龙江科技学院引进人才项目(06-13);; 黑龙江省教育厅重大攻关项目(9951Z012)

作者(Author): 周月波,赵国刚,张海军

DOI: 10.13289/j.issn.1009-6264.2010.02.014

参考文献(References)：

• [1]Atkinson HV.A review of the role of short-circuit diffusion in the oxidation of nickel,chromium and nickel-chromium alloys[J].Oxid Met,1985,24:177-197.
• [2]Goward G W.Overview ptotective coatings-purpose role and design[J].Mater Sci Technol,1986,2:194-199.
• [3]Goward G W,Boone D H.Mechanism of formation of diffusion aluminide coatings on nickel-based superalloys[J].Oxid Met,1971,3:475-481.
• [4]Foster J,Cameron B P,CarewJ A.The production of mutil-component alloy coatings by particles cedeposition[J].Trans Inst Met Finish,1985,63:115-119.
• [5]耿学洪.复合电镀NiCrAlY涂层及其高温氧化行为的研究[D].沈阳:中国科学院金属腐蚀与防护研究所,1992.
• [6]Izaki M,Fukusumi M,Enomoto H,et al.High-temperature oxidation resistance of Ni-Al alloy films:prepared by heating electrodeposited composite[J].J Japan Inst Met,1993,57:182-189.
• [7]Susan D F,Marder A R.Oxidation of Ni-Al-based electrodeposited composite coatingsⅡ:oxidation kinetics and morphology at1000℃[J].OxidMet,2002,57:159-180.
• [8]LIU Hai-feng,CHENWei-xing.Cyclic oxidation behavior of electrodeposited Ni3Al-CeO2based coatings at850℃[J].Oxid Met,2005,64(5/6):331-352.
• [9]Bazard R,Boden P J.Nickel-chromium alloys by codeposition:partⅠ—codeposition of chromium particles in a nickel matrix[J].Trans Inst MetFinish,1972,50:63-69.
• [10]Bazard R,Boden P J.Nickel-chromium alloys by codeposition:partⅡ—diffusion heat treatment of codeposited composite[J].Trans Inst MetFinish,1972,50:207-210.
• [11]Zhang Y,Peng X,Wang F.Development and oxidation at800℃of a novel electrodeposited Ni-Cr nanocomposite film[J].Materials Letters,2004,58(6):1134-1138.
• [12]Zhou Y,Peng X,Wang F.Oxidation of a novel electrodeposited Ni-Al nanocomposite film at 1050℃[J].Scripta Materialia,2004,50:1429-1433.
• [13]Zhou Y,Peng X,Wang F.Cyclic oxidation of alumina-forming Ni-Al nanocomposites with and without CeO2addition[J].Scripta Materialia,2006,55:1039-1042.
• [14]Zhou Y,Peng X,Wang F.Size effect of Al particles on the oxidation of electrodeposited Ni-Al composite coatings[J].Oxidation of Metal,2005,64:169-183
• [15]张艳,张春林,彭晓,等.Cr颗粒尺寸对Ni-Cr复合镀层氧化行为的影响[J].中国腐蚀与防护学报,2006,26(4):85-88.Zhang Yan,Zhang Chunlin,Peng Xiao,et al.Effect of Cr particle size on the oxidation behaviour of electrodeposited Ni-Cr composite coatings[J].Journal of Chinese Society for Corrosion and Protection,2006,26(4):85-88.
• [16]Peng X,Zhang Y,Wang F.A novel electrodeposited Ni-Cr nanocomposite with increased resistance to pitting corrosion in 3.5%NaCl solution[J].Electrochemical and Solid-State Letters B,2005,8(9):46-49.
• [17]Zhang C,Peng X,Zhao J,et al.Hot corrosion of an electrodeposited Ni-11 wt%Cr nanocomposite under molten Na2SO4-K2SO4-NaCl[J].Journalof the Electrochemical Society B,2005,152(9):321-326.
• [18]Yang X,Peng X,Wang F.Hot corrosion of a novel electrodeposited Ni-6Cr-7Al nanocomposite under molten(0.9Na,0.1K)2SO4at 900℃[J].Scripta Materialia,2007,56:891-894.
• [19]周月波,孟令辉,张海军,等.Cr颗粒尺寸对Ni-Cr复合镀层750℃氧化性能[J].稀有金属材料与工程,2008,37(6):1095-1098.Zhou Yuebo,Meng Linghui,Zhang Haijun,et al.Effect of Cr particle size on the oxidation behavior of Ni-Cr composite coatings at 750℃[J].Rare Metal Materials and Engineering,2008,37(6):1095-1098.
• [20]Goebel J A,Pettit F S.Na2SO4-induced accelerated oxidation of nickel[J].Met Trans,1970,1:1943-1954.
• [21]Goebel J A,Pettit F S,Goward G W.Mechanisms for the hot corrosion of nickel-based alloy[J].Met Trans,1973,4:261-278.
• [22]Li MH,Sun X F,Hu W Y,et al.Hot corrosion of a single crystal-Ni-based superalloy by Na-salts at900℃[J].Oxidation of Metals,2006,65(1/2):137-150.

文章评论(Comment)：