Ni-W-P-SiC脉冲复合镀层的抗高温氧化性能
OXIDATION RESISTANCE OF PULSE ELECTRODEPOSITED Ni-W-P-SiC COMPOSITE COATING
摘 要
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.
Ni-W-P-SiC
抗高温氧化性能
Pulse composite coating
Ni-W-P-SiC
Oxidation resistance
Abstract
Oxidation resistance of pulse electrodeposited Ni-W-P-SiC composite coating was studied by means of mass gain of oxidation and X-ray diffraction.The oxidation resistance of pulse composite coating was better than that of direct current composite coating.The oxide film mass of Ni-W-P-SiC pulse composite coating increased with the increase of oxidation temperature and oxidation time.The increase of oxide film mass was less when oxidation temperature was lower than 600℃ and the increase of oxide film mass was more when oxidation temperature was higher than 600℃.The effect of pulse frequency and duty ratio on oxidation resistance was relatively significant and good resistance was obtained in f=33-50Hz and r=0.4(or 0.6).Oxidation temperature had a great influence on the structure of Ni-W-P-SiC pulse composite coating.The amorphous feature of coating was weakened with the rising of oxidatiom temperature and time.
中图分类号 TQ153
所属栏目 试验研究
基金项目
收稿日期 2005/8/23
修改稿日期 2005/10/13
网络出版日期
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引用该论文: ZHANG Huan,HU Ya-min,GUO Zhong-cheng. OXIDATION RESISTANCE OF PULSE ELECTRODEPOSITED Ni-W-P-SiC COMPOSITE COATING[J]. Corrosion & Protection, 2006, 27(6): 280～283
被引情况:
【1】张 菁,刘 峥,郭亚晋,莫国芳, "Ni-P-SnO2复合镀层的制备及其性能",腐蚀与防护 37, 693-700(2016)
【2】张磊,张勇,钟庆东,蒋继波,罗检,朱振宇, "复合电沉积的电化学测试方法与研究进展",腐蚀与防护 33, 366-370(2012)
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参考文献
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【7】Zhao Q,Liu Y,Hu Müller-Steinhagen.Graded Ni-P-PTFE coatings and their potential applications[J].Surface and Coatings Technology,2002,155:279-284.
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