平朝霞,杨青,孟辰路,黄思雅,范丽丽,何业东

• 1:北京科技大学北京市腐蚀磨蚀和表面技术重点实验室

摘要(Abstract)：

通过在镀液中加入介质小球,进行搅拌,对镁合金化学镀Ni-P过程施加机械研磨作用。结果表明,机械研磨改变了镀层的生长方式,获得的镀层表面光滑、平整,镀层颗粒明显细化,没有孔隙;在机械研磨作用下,镀层发生了由非晶向晶态的转变,形成固溶P的晶态Ni镀层,镀层硬度显著提高。机械研磨化学镀Ni-P镀层在400℃热处理1h,镀层中析出Ni3P相,镀层硬度进一步提高,而且镀层中没有传统化学镀Ni-P镀层热处理后产生的裂纹。镁合金机械研磨化学镀Ni-P镀层的耐磨和耐蚀性能获得显著提高。

关键词(KeyWords)： 机械研磨;化学镀;Ni-P镀层

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50671006);; 北京科技大学本科生创新基金项目(07030367)

作者(Author): 平朝霞,杨青,孟辰路,黄思雅,范丽丽,何业东

参考文献(References)：

• [1]Sato M,Tsuji N,Minamino Y,et al.Formation of nanocrystalline surface layersin various metallic materials by near surface severe plastic deformation[J].Science and Technology of Advanced Materials,2004,5:145.
• [2]Tao NR,Wang Z B,Tong WP,et al.Aninvestigation of surface nanocrystallization mechanismin Feinduced bysurface mechanical attritiontreatment[J].Acta Materialia,2002,50:4603.
• [3]Lu K,Lu J.Nanostructured surface layer on metallic materials induced by surface mechanical attrition treatment[J].Materials Science and Engineering,2004,375:38.
• [4]Umemoto M,Todaka K,Tsuchiya K.Formationof nanocrystalline structureincarbonsteels by ball dropand particleimpacttechniques[J].Materials Scienceand Engineering,2004,375:899.
• [5]Tao NR,Sui ML,Lu J,et al.Surface nanocrystallization of ironinduced by ultrasonic shot peening[J].Nanostructured Materials,1999,11:433.
• [6]Liu G,LuJ,Lu K.Surface nanocrystallizationof 316Lstainless steel induced by ultrasonic shot peening[J].Materials Science and Engineering,2000,286:91.
• [7]Akamatsu H,Ikeda T,Azuma K,et al.Surface treatment of steel by short pulsedinjection of high-power ion beam[J].Surface and Coatings Technology,2001,136:269.
• [8]Tong WP,Tao NR,Wang Z B,et al.Nitridingiron at lower temperatures[J].Science,2003,299:5607.
• [9]Gu J F,Bei D H,Pan J S,et al.Improved nitrogentransport in surface nanocrystallizedlow-carbon steels during gaseous nitridation[J].Materials Letters,2002,55:340.
• [10]Zhan Z L,He YD,Wang D R,et al.Low-temperature processingof Fe-Al intermetallic coatings assisted by ball milling[J].Intermetallics,2006,14:75.
• [11]Gordon M.Mechanical plating[J].Metal Finishing,2002,100:384.
• [12]He Y D,Fu HF,Li X G,et al.Microstructure and properties of mechanical attrition enhanced electroless Ni-P plating on magnesiumalloy[J].ScriptaMaterialia,2008(58):504-507.
• [13]Ning Z,He Y D,Gao W.Mechanical attrition enhanced Ni electroplating[J].Surf Coat Technol,2008(202):2139.
• [14]李瑛,余刚,刘跃龙.镁合金的表面处理及其发展趋势[J].表面技术,2003,32(2):1-5.LI Ying,YUGang,LIUYue-long.Surface treatment of magnesiumalloy andits trend of development[J].Surface Technology,2003,32(2):1-5.
• [15]高福麒,高斌,高翔.镁合金及其表面电镀技术[J].表面技术,2004,30(1):8-10.GAOFu-Qi,GAO Bin,GAO Xiang.Magnesiumalloy andits technology of surface electroplating[J].Surface Technology,2004,30(1):8-10.
• [16]Gray G E,Luan B.Protective coatings on magnesiumandits alloys-a critical review[J].J Alloy ComPd,2002,336:88.
• [17]边风刚,李国禄,刘金海.镁合金表面处理发展现状[J].材料保护,2002,35(3):1-4.BIANFeng-gang,LI Guo-Lu,LIUJin-hai.Present development status of magnesiumalloy surface treatment[J].Material protection,2002,35(3):1-4.
• [18]Ambal R,Zhon W.Electroless nickel-plating on AZ91D magnesiumalloy;effect of microstructure and plating parameters[J].Surf Coat Technol,2004,179:124.
• [19]Shahin G E.Electroless nickel on magnesiumalloy automotive parts[J].Automotive Finishing,2001,(winter):12.
• [20]Sharma AK,Suresh MR,Bhojraj H,et al.Elestroless nickel plating on magnesiumalloy[J].Met Finish,1998,96:10.
• [21]Huo H W,Li Y,Wang F H.Elestroless nickel plating on AZ91D magnesiumalloy[J].J Chin Soc Corros Prot,2002,22(1):14.
• [22]Xiang Y H,Hu WB,Shen B,et al.Initial deposition mechanismof direct elestroless nickel platingon magnesiumalloy[J].J Shanghai Jiaotong University,2000,34(12):1638.

文章评论(Comment)：