本文利用扫描电镜(SEM)和原子力显微镜(AFM)观察了一次浸锌和二次浸锌不同时间下浸锌层的微观形貌,建立了无氰多元浸锌全过程模型.结果表明铝及其合金的浸锌过程是锌晶粒在基体上不断形核和长大的过程.浸锌初期主要是晶核形成期,浸锌后期主要是晶粒生长期;金属离子放电的高活性中心在金属表面上的低能量点上,多元合金中的铁、镍和铜是锌晶粒生长的异质晶核;二次浸锌得到的锌晶粒比一次浸锌更细小、均匀和致密,对基体覆盖能力好.二次浸锌时间为20～30 s时,浸锌层的微观形貌最好.
参考文献
| [1] | Malte Isacsson;Mats Strom.Characteristics and Applications of Magnesium in Automotive Design[M].Warrendale Pa:Society of Automotive Engineers,1997 |
| [2] | 马洪芳,刘志宝,殷风玲.铝合金电镀工艺研究[J].腐蚀与防护,2003(04):162-163. |
| [3] | 原顺德,陈天初.铝合金铸件电镀[J].电镀与环保,2002(03):39-40. |
| [4] | 沈亚光.铝轮毂电镀[J].电镀与环保,2003(01):12-15. |
| [5] | 周洁,白杉.铝合金轮毂的特点和制造工艺及市场需求[J].轻合金加工技术,2004(08):43-44. |
| [6] | Ng Wei Chin .Effects of Immersion Zincation to the Electroless Nickel Under-bump Materials in Microelectronics Packaging[J].Proceedings of the Electronic Packaging Technology Conference,1998,8(10):89-94. |
| [7] | Court S.W.;Barker B.D. .Electrochemical Measurements of Electroless Nickel Coatings on Zincated Aluminium Substrates[J].Transactions of the Institute of Metal Finishing,2000(4):157-162. |
| [8] | Qi G.;Chen X.;Shao Z. .Influence of bath chemistry on zincate morphology on aluminum bond pad[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2002(1/2):204-209. |
| [9] | Chun-Jen Chen;Kwang-Lung Lin .Internal stress and adhesion of amorphous Ni-Cu-P alloy on aluminum[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2000(1/2):106-113. |
| [10] | Muh-Wang Liang;Tsung-Eong Hsieh;Chi-Chin Chen;Yuan-Te Hung .Electroless Copper/Nickel Films Deposited on AlN Substrates[J].Japanese journal of applied physics,2004(12):8258-8266. |
| [11] | Wernick S;Pinner R;Sheasby P G.The Surface Treatment and Finishing of Aluminium and Its Alloys[M].Finishing Publications Ltd.England,1987 |
| [12] | Williams;Barry.Gyanide Containing Pretreatment Processes for Plating on Aluminum and Its Alloys:Are they really necessary[A].,1999:533-539. |
| [13] | Pearson T;Wake S .Verbesserungen bei der Vorbehandlung von Aluminium als Substratfuerdie Galvanische Abscheidung[J].Galvanotechnik,2000,91(11):3054-3061. |
| [14] | 王明江 .铝及铝合金电镀新工艺[J].电镀与环保,1998,18(05):14-16. |
| [15] | 毛祖国,曾月莲,何杰.高硅铝合金电镀工艺[J].材料保护,2001(07):29-30. |
| [16] | 李宁,黎德育,袁国伟,梁国柱,张王林.铝上一次浸锌工艺的研究[J].电镀与涂饰,2001(03):17-20. |
| [17] | 华树芳.压铸铝合金枪黑色电镀工艺[J].电镀与涂饰,2003(03):11-13. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%