用增重法和X射线衍射法研究了Ni-W-P-SiC脉冲复合镀层的抗高温氧化性能.结果表明:脉冲复合镀层的抗高温氧化性比直流复合镀层优异;Ni-W-P-SiC脉冲复合镀层随着氧化温度的升高和氧化时间的延长,氧化物质量增大,但在600℃以下镀层稳定性较好.不同的脉冲频率和占空比条件对镀层的抗氧化性有较大的影响,在f=33～50Hz,r=0.4或r=0.6处镀层的抗高温氧化性较好;随着氧化温度的升高和时间的延长,镀层截面更均匀,镀层的非晶态形态逐渐减弱,镀层逐渐向晶态转变,Ni3P相的衍射峰逐渐加强,且不断出现新相的特征峰.
参考文献
| [1] | Guo Zhong-cheng;Liu Hong-kang;Wang Zhi-yin et al.Process and properties of electroless plating RE-Ni-B-SiC composite coatings[J].Acta Metallurgica Sinica(in English),1995,8(02):118-122. |
| [2] | Guo Zhon-cheng;Liu Hong-kang;Wang Zhi-yin et al.Properties of electrodeposited amorphous Ni-W-P-SiC composite coatings[J].Acta Metallurgica Sinica(in English),1996,9(01):44-48. |
| [3] | Sun Kyu Kim;Hong Jae Yoo .Formation of bilayer Ni-SiC composite coatings by electrodeposition[J].Surface & Coatings Technology,1998(1/3):564-569. |
| [4] | Gay PA.;Pagetti J.;Bercot P. .Electrodeposition and characterisation of Ag-ZrO2 electroplated coatings[J].Surface & Coatings Technology,2001(2):147-154. |
| [5] | GUO Zhong-cheng,ZHAI Da-cheng,YANG Xian-wan.Effects of addition of rare earth on properties and structures of Ni-W-B-SiC composite coatings[J].中国有色金属学会会刊,2000(04):538. |
| [6] | Orlovskaya L;Medeliene V .Electrodeposition of multiplayer cobalt-sillicon carbide composite coatings from a single bath[J].Bulletin of Electrochemistry,2001,17(08):371-377. |
| [7] | Zhao Q.;Liu Y.;Muller-Steinhagen H.;Liu G. .Graded Ni-P-PTFE coatings and their potential applications[J].Surface & Coatings Technology,2002(2/3):279-284. |
| [8] | Z.C.Guo,X.Y.Zhu,R.D.Xu,X.W.Yang.CATHODIC PROCESS AND WEAR RESISTANCE OF ELECTRO- DEPOSITED RE-Ni-W-P-SiC COMPOSITE COATING[J].金属学报(英文版),2002(04):369-374. |
| [9] | 向国朴.脉冲电镀发展概况[J].电镀与涂饰,2000(04):43-47. |
| [10] | 张欢,郭忠诚,徐瑞东.脉冲电沉积Ni-W-P-SiC复合电镀的研究[J].电镀与环保,2004(01):1-3. |
| [11] | 曾华梁;吴仲达;陈钧武.电镀工艺手册[M].北京:机械工业出版社,1997:645-646. |
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