普通镍钴合金电铸层硬度低、应力大、表面粗糙,严重影响了其成品率及质量.研究了添加光亮剂(糖精和1,4-丁炔二醇)对镍钴合金电铸层微观结构、应力以及硬度的影响.结果表明:随着糖精含量的增加,铸层的拉应力逐渐减小,最终转变为压应力,硬度随之增大;随着1,4-丁炔二醇含量的增加,铸层的拉应力越来越大,硬度也随之增大;添加剂使铸层晶粒更加细致、表面更加平滑.基础电铸液中加入0.06～0.08g/L糖精,0.10-0.20 g/L 1,4-丁炔二醇,在pH值4～5,温度50～60℃,电镀90 min下可以获得低应力、高硬度、全光亮及结晶细致的镍钴合金电铸层(含10%～15%钴).
参考文献
| [1] | 李松,马立娟.复合材料模具表面电铸镍钴合金研究[J].电镀与涂饰,2006(10):1-4. |
| [2] | Me Geough J A;Leu M C;Rajurkar K P .Industrial electroforming process and application to micro/macro manufacturing[J].Annals of the CIRP,2001,50(02):499-514. |
| [3] | Meenu S V;Ezhil S V K;William G et al.Corrosion resistance and microstructure of electrodeposited nickel-cobalt alloy coatings[J].Surface and Coatings Technology,2006,201:3 051-3 060. |
| [4] | Orináková R T;Oriák A;Vering G et al.Influence of pH on the electrolytic deposition of Ni-Co fihns[J].Thin Solid Films,2008,516:3 045-3 050. |
| [5] | 李艳.电沉积Ni-Co合金工艺条件的研究[J].化工技术与开发,2004(04):5-7. |
| [6] | 叶信宏,黄雅如,彭美芳,周敏杰.低应力高硬度镍钴合金微电铸技术之研究[C].'99第六届海峡两岸表面精饰联谊会论文集,1999:57-63. |
| [7] | 范爱玲,贺怀堂,田文怀,孙起.电铸超细晶材料的微观组织研究[J].太原重型机械学院学报,2003(02):88-91. |
| [8] | 雷卫宁,朱荻,张文峰,朱增伟.基于高性能沉积层的精密电铸技术的研究进展[J].兵器材料科学与工程,2005(06):60-63. |
| [9] | Wang LP;Gao Y;Xue QJ;Liu HW;Xu T .Microstructure and tribological properties of electrodepo sited Ni-Co alloy deposits[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2005(3/4):326-332. |
| [10] | Tury B;Radnoczi GZ;Radnoczi G;Varsanyi ML .Microstructure properties of pulse plated Ni-Co alloy[J].Surface & Coatings Technology,2007(2):331-335. |
| [11] | 封万起.由氨基磺酸盐和硫酸盐电解液电沉积Ni-Co合金的对比研究[J].电镀与精饰,1996(02):4. |
| [12] | 刘仁志.影响镀镍层内应力的因素及排除方法[J].印制电路信息,2003(05):33-34,41. |
| [13] | 方景礼.电镀添加剂理论与应用[M].北京:国防工业出版社,2006:16-52. |
| [14] | El-Sherik A M;Shirokoff J;Erb U .Stress measurements in nanocrystalline Ni electredeposits[J].Journal of Alloys and Compounds,2005,389:140-143. |
| [15] | Li Y D;Jiang H;Wang D et al.Effects of saccharin and cobalt concentration in electrolytic solution on microhardness of nanecrystalline Ni-Co alloys[J].Surface and Coatings Technology,2008,202:4 950-4 956. |
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