Microstructure and Performance of Electroplated Fe-nano ZrO2 Composite Coating
摘 要
采用氯化物低温镀铁工艺,选择纳米ZrO2作为第二相粒子,以不对称交流-直流电源电镀法制备了铁-纳米ZrO2复合镀层;研究了工艺参数对镀层组织结构和镀层硬度、耐磨性能的影响.结果表明:采用此方法可获得内应力小、致密的复合镀层,镀层为α-Fe体心立方结构;当镀液中ZrO2纳米粒子含量为30 g/L,pH值为1,搅拌转速为300 r/min,阴极电流密度为20 A/dm2,施镀温度为30~40 ℃时,ZrO2粒子在镀层中弥散分布,镀层的平均硬度值达到800 HV.镀铁层中复合适量的ZrO2纳米粒子,能有效地降低粘着磨损,提高镀层的耐磨性能.
Abstract
Fe-nano ZrO2 composite coating was prepared by adopting chloride low temperature iron electroplating technology,choosing nano ZrO2 as second phase particle,and using asymmetric AC-DC electroplating.The influence of technological parameters on microstructure,microhardness and wear resistance of coating was investigated.Results indicate that adopting asymmetric AC-DC electroplating can gain compact coatings with small inner stress.The coating is body-centered cubic α-Fe crystal structure.When nano ZrO2 particle content in solution was 30 g/L,pH value was 1,mixing speed was 300 r/min ,cathode current density was 20 A/dm2 and temperature was 30-40 ℃,the ZrO2 particles dispersed in coating and the average microhardness of costing achieved 800 HV.A moderate amount of ZrO2 nano particles in coating can reduce adhesion wear,and therefore increase the wear resistance of coating.
中图分类号 TG174.4
所属栏目
基金项目
收稿日期 2006/10/13
修改稿日期 2007/3/28
网络出版日期
作者单位点击查看
备注许乔瑜(1955-),男,广东梅县人,副教授,博士.
引用该论文: XU Qiao-yu,LIU Fang,LU Jin-tang,KONG Gang,CHE Chun-shan. Microstructure and Performance of Electroplated Fe-nano ZrO2 Composite Coating[J]. Materials for mechancial engineering, 2007, 31(9): 51~54
许乔瑜,刘芳,卢锦堂,孔纲,车淳山. 铁-纳米ZrO2复合电镀层的组织与性能[J]. 机械工程材料, 2007, 31(9): 51~54
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】Carim A H,Dobbins T A,Giannuzzi L A.Phase distribution in,and origin of,interfacial protrusions in Ni-Cr-Al-Y/ZrO2 thermal barrier coatings[J].Materials Science and Engineering A,2002,334(1/2):65-72.
【2】李庆伦,于晓中,汪虹,等.低温镀铁技术的发展[J].电镀与涂饰,1998,17(4):41-43.
【3】刘洪涛,顾卡丽,李健,等.低温镀铁层的微观结构和摩擦学性能[J].材料保护,2004,37(6):7-8.
【4】Henuset Y M,Menini R.Effect of ceramic particle pretreatment and surface chemistry on electrocomposite coatings[J].Plating and Surface Finishing,2002(10):63-67.
【5】丁红燕,周广宏.镍-磷-纳米Al2O3复合镀层的摩擦学性能[J].机械工程材料,2005,29(4):54-57.
【6】Jeong D H,Gonzalez F,Palumbo G,et al.The effect of grain size on the wear properties of electrodeposited nanocrystalline nickel coatings[J].Scripta Mater,2001,44:493.
【7】Gyttou P,Pavlato E A,Spyellis N,et al.Hardening modification of nickel matrix composite electrocoatings containing SiC nanoparticles[J].Electroplating and Surface Treatment,2001,9(1):23-28.
【8】马叙,姚素薇,张卫国,等.Fe-w-Al2O3纳米复合镀层的结构及其耐磨性[J].机械工程材料,2006,30(6):83-86.
【9】宋影伟,单大勇,陈荣石,等.AZ91D镁合金化学复合镀Ni-P-ZrO2的工艺与性能[J].中国有色金属学报,2006,16(4):625-629.
【10】卢光熙,侯增寿.金属学教程[M].上海:上海科学技术出版社,1985.
【2】李庆伦,于晓中,汪虹,等.低温镀铁技术的发展[J].电镀与涂饰,1998,17(4):41-43.
【3】刘洪涛,顾卡丽,李健,等.低温镀铁层的微观结构和摩擦学性能[J].材料保护,2004,37(6):7-8.
【4】Henuset Y M,Menini R.Effect of ceramic particle pretreatment and surface chemistry on electrocomposite coatings[J].Plating and Surface Finishing,2002(10):63-67.
【5】丁红燕,周广宏.镍-磷-纳米Al2O3复合镀层的摩擦学性能[J].机械工程材料,2005,29(4):54-57.
【6】Jeong D H,Gonzalez F,Palumbo G,et al.The effect of grain size on the wear properties of electrodeposited nanocrystalline nickel coatings[J].Scripta Mater,2001,44:493.
【7】Gyttou P,Pavlato E A,Spyellis N,et al.Hardening modification of nickel matrix composite electrocoatings containing SiC nanoparticles[J].Electroplating and Surface Treatment,2001,9(1):23-28.
【8】马叙,姚素薇,张卫国,等.Fe-w-Al2O3纳米复合镀层的结构及其耐磨性[J].机械工程材料,2006,30(6):83-86.
【9】宋影伟,单大勇,陈荣石,等.AZ91D镁合金化学复合镀Ni-P-ZrO2的工艺与性能[J].中国有色金属学报,2006,16(4):625-629.
【10】卢光熙,侯增寿.金属学教程[M].上海:上海科学技术出版社,1985.
相关信息