采用双脉冲复合电镀技术，在瓦特型镀液中，制备含纳米 SiC 的 Ni／MoS2基复合镀层。研究纳米 SiC 浓度对复合镀层微观形貌、组织结构、显微硬度和摩擦性能的影响。结果表明：镀液中添加纳米 SiC 后，Ni／MoS2复合镀层的微观形貌产生明显的变化，随镀液中 SiC 浓度的增加，复合镀层表面致密度提高；镀液中纳米 SiC 浓度在1．0～1．5g／L 时，组织由 Ni＋MoS2＋SiC 组成；纳米 SiC 为1．5g／L 时，显微硬度达到最大，为505HV，摩擦因数为0．28，分别为纯 Ni／MoS2的1．6倍和1／2。复合镀层的磨损机制以磨料磨损为主。
Ni/MoS2 based composite coatings containing nano-SiC particles was prepared by double-pulse electrodepositing in Watts nickel plating solution.The effect of content of nano-SiC in the solu-tion on the micro morphology,microstructure,hardness and friction properties of coating was investi-gated.The results show that the micro morphology of Ni/MoS2 composite coating changes obviously after adding nano-SiC particles in electrolyte,the density of the coating surface increases with the in-creasing of the concentration of nano-SiC particles in electrolyte,the microstructure of coatings is mainly composed of nickel,MoS2 and SiC,when the content of nano-SiC ranging from 1.0-1.5g/L,the hardness of composite coatings increased with increasing the content of nano-SiC in electrolyte,when nano-SiC is 1.5g/L in electrolyte,the microhardness of coating reaches the maximum value of 505 HV and the friction coefficient of coating is 0.28,which is about 1.6 times and 1/2 of pure Ni/MoS2 com-posite coating respectively;and the wear mechanism of coatings is mainly abrasive wear .
参考文献
| [1] | S. Alirezaei;S. M. Monirvaghefi;M. Salehi;A. Saatchi .Wear behavior of Ni-P and Ni-P-Al{sub}2O{sub}3 electroless coatings[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2007(7/8):978-985. |
| [2] | CHEN L;WANG L P;ZENG Z X et al.Influence of pulse fre-quency on the microstructure and wear resistance of electrodepos-ited Ni-Al2 O3 composite coatings[J].Surface and Coatings Tech-nology,2006,201(3-4):599-605. |
| [3] | Feng QY;Li TJ;Yue HY;Qi K;Bai FD;Jin JZ .Preparation and characterization of nickel nano-Al2O3 composite coatings by sediment co-deposition[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2008(8):2262-2268. |
| [4] | E. Pompei;L. Magagnin;N. Lecis;P. L. Cavallotti .Electrodeposition of nickel-BN composite coatings[J].Electrochimica Acta,2009(9):2571-2574. |
| [5] | LOW C T J;WILLS R G A;WALSH F C .Electrodeposition of composite coatings containing nanoparticles in a metal deposit[J].Surface and Coatings Technology,2006,201(1 -2):371-383. |
| [6] | HACHEMI B T;ABDELOUAHED C;SA?D R .Microhardness and corrosion behavior of Ni-SiC electrodeposited coatings in pres-ence of organic additives[J].Surface and Coatings Technology,2011,205(Suppl 2):161-164. |
| [7] | GüL H;UYSAL F K M;ASLAN S et al.Effect of particle concentration on the structure and tribological properties of sub-micron particle SiC reinforced Ni metal matrix composite (MMC) coatings produced by electrodeposition[J].Applied Surface Sci-ence,2012,258(10):4260-4267. |
| [8] | BALARAJU J N;EZHIL S V;RAJAM K S .Electrochemical behavior of low phosphorus electroless Ni-P-Si3 N4 composite coat-ings[J].Materials Chemistry and Physics,2010,120(2-3):546-551. |
| [9] | KARBASI M;YAZDIAN N;VAHIDIAN A .Development of e-lectro-co-deposited Ni-TiC nano-particle reinforced nanocomposite coatings[J].Surface and Coatings Technology,2012,207:587-593. |
| [10] | ZHAO Q;LIU Y;ABEL E W .Effect of Cu content in electro-less Ni-Cu-P-PTFE composite coatings on their anti-corrosion properties[J].Materials Chemistry and Physics,2004,8(07):332-335. |
| [11] | LIEW K W;CHIA S Y;KOK C K et al.Evaluation on tribo-logical design coatings of Al2 O3,Ni-P-PTFE and MoS2 on alu-minium alloy 7075 under oil lubrication[J].Materials and De-sign,2013,48:77-84. |
| [12] | CARDINAL M F;CASTRO P A;BAXI J et al.Characteriza-tion and frictional behavior of nanostructured Ni-W-MoS2 com-posite coatings[J].Surface and Coatings Technology,2009,204(1 -2):85-90. |
| [13] | GARCIA L E;GARCIA U I;DIEZ J A et al.Codeposition of in-organic fullerene-like WS2 nanoparticles in an electrodeposited nickel matrix under the influence of ultrasonic agitation[J].Electrochimica Acta,2013,114:859-867. |
| [14] | Yating Wu;Hezhou Liu;Bin Shen;Lei Liu;Wenbin Hu .The friction and wear of electroless Ni-P matrix with PTFE and/or SiC particles composite[J].Tribology International,2006(6):553-559. |
| [15] | HYANG Y S;ZENG X T;ANNERGREN I et al.Develop-ment of electroless NiP-PTFE-SiC composite coating[J].Sur-face and Coatings Technology,2003,167(2-3):207-211. |
| [16] | WANG Z J;WU L N;QI Y L et al.Self-lubricating Al2 O3/PTFE composite coating formation on surface of aluminium alloy[J].Surface and Coatings Technology,2010,204(20):3315-3318. |
| [17] | HUANG Z J;XIONG D S .MoS2 coated with Al2 O3 for Ni-MoS2/Al2 O3 composite coatings by pulse electrodepositon[J].Surface and Coatings Technology,2008,202(14):3208-3214. |
| [18] | 王兰,邵红红,陈康敏,潘励.Ni-P-SiC-MoS2复合镀层结构与性能研究[J].腐蚀与防护,2006(07):334-337. |
| [19] | 丁元柱,王研.纳米SiC-MoS2/Ni基复合电刷镀层组织与耐磨性能[J].材料开发与应用,2010(06):44-47. |
| [20] | 王红星,杨少锋,柳秉毅,张炎.料浆包渗温度对渗Si层组织结构和性能的影响[J].材料工程,2013(02):69-73. |
| [21] | HUANG Z J;XIONG D S .MoS2 coated with Al2 O3 for Ni-MoS2/Al2 O3 composite coatings by pulse electro-deposition[J].Surface and Coatings Technology,2008,202(14):3208-3214. |
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