纳米α-Al2O3和γ-Al2O3颗粒增强镍-磷复合镀层的性能对比
Properties Comparison of α-Al2O3 Particles and γ-Al2O3 Particles Reinfcrced Ni-P Nano-composite Coatings
摘 要
采用化学镀技术制备了纳米α-Al2O3 和γ-Al2O3颗粒增强的镍-磷复合镀层,利用X射线衍射仪、扫描电子显微镜、电子探针等对复合镀层的物相结构、表面形貌、成分分布进行了分析,还对比了复合镀层与镍-磷镀层的显微硬度、耐磨性和耐腐蚀性.结果表明:与镍-磷镀层相比,纳米Al2O3颗粒的加入没有改变镀层的晶体结构,但使镀层的显微硬度明显提高;纳米α-Al2O3颗粒的加入提高了镀层的耐腐蚀性和耐磨性,而纳米γ-Al2O3颗粒的加入反而使镀层耐磨性和耐腐蚀性下降.
镍-磷镀层
纳米Al2O3颗粒
electroless deposition
Ni-P coating
nano-Al2O3 partide
Abstract
The α-Al2O3/Ni-P and γ-Al2O3/Ni-P nano-composite coatings were prepared by electroless deposition with embedded nanometer-sized α-Al2O3 and γ-Al2O3 particles.The phase structure,surface morphology and element distribution of nano-coatings were studied by means of XRD,SEM,EPMA.The micro-hardness,tribological properties and corrosion resistance were investigated and compared with those of Ni-P coating.The retults show that in comparison to the conventional Ni-P coating,the structure of the coating was not changed due to the addition of nano α-Al2O3 particles,but the co-deposited nano-coatings had higher micro-hardness.The wear resistance and corrosion resistance of the coating with nano α-Al2O3 particles were improved,but that with γ-Al2O3 were decreased.
中图分类号 TB43
所属栏目 材料性能及其应用
基金项目 国家自然科学基金国际(地区)合作与交流资助项目(NSFC-KOSEF)(50611140546);教育部“新世纪优秀人才支持计划”资助项目(NCET-05-0283)
收稿日期 2008/7/9
修改稿日期 2009/2/15
网络出版日期
作者单位点击查看
备注冷楠(1983-),女,辽宁大连人,硕士研究生.
引用该论文: LENG Nan,ZHAO Fu-guo,HUANG Hao,WANG Deng-ke,DONG Xing-long. Properties Comparison of α-Al2O3 Particles and γ-Al2O3 Particles Reinfcrced Ni-P Nano-composite Coatings[J]. Materials for mechancial engineering, 2009, 33(7): 56～60
冷楠,赵福国,黄昊,王登科,董星龙. 纳米α-Al2O3和γ-Al2O3颗粒增强镍-磷复合镀层的性能对比[J]. 机械工程材料, 2009, 33(7): 56～60
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【10】徐滨士,王海斗,董世运,等.纳米Al2O3/Ni复合电刷镀层的表征与微动磨损机理[J].稀有金属材料与工程,2004,33(8):785-788.
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【14】高进,孙金厂,崔明铎.Ni-P合金化学镀非晶态合金的耐蚀性研究[J].表面技术,2001,30(5):36-38.
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