| Ni-Al2O3复合镀层的腐蚀摩擦学性能研究 |
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| 引用本文： | 杨钦鹏,汤皎宁,高继华,李均钦,谷坤明,龚晓钟. Ni-Al2O3复合镀层的腐蚀摩擦学性能研究[J]. 化学世界, 2004, 45(7): 350-352,347 |
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| 作者姓名： | 杨钦鹏 汤皎宁 高继华 李均钦 谷坤明 龚晓钟 |
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| 作者单位： | 深圳大学理学院深圳市特种功能材料重点实验室,广东,深圳,518060;深圳大学理学院深圳市特种功能材料重点实验室,广东,深圳,518060;深圳大学理学院深圳市特种功能材料重点实验室,广东,深圳,518060;深圳大学理学院深圳市特种功能材料重点实验室,广东,深圳,518060;深圳大学理学院深圳市特种功能材料重点实验室,广东,深圳,518060;深圳大学理学院深圳市特种功能材料重点实验室,广东,深圳,518060 |
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| 基金项目： | 广东省自然科学基金资助项目(000843) |
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| 摘 要： | 用电镀方法制得Ni-Al2O3复合镀层,研究电镀Ni-Al2O3复合镀层的结构以及其硬度、耐磨性、抗腐蚀性与电镀电流密度的关系。结果表明:复合镀层的显微硬度比纯镍镀层硬度成倍提高,复合镀层耐磨性比镍镀层提高20%以上;抗腐蚀性提高70%以上。X射线衍射结果显示,复合镀层由Ni及非晶Al2O3组成,Ni相为面心立方晶体结构,晶格常数为0.353nm,小于纯镍镀层,晶粒尺寸为23.8nm,大于纯镍镀层。
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| 关 键 词： | 电镀 复合 磨损 腐蚀 |
| 文章编号： | 0367-6358(2004)07-0350-03 |
Wear and Corrosion of the Ni-Al2O3 Composite Coating |
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| YANG Qin-peng,TANG Jiao-ning,GAO Ji-hua,LI Jun-qin,Gu Kun-mingGONG Xiao-zhong. Wear and Corrosion of the Ni-Al2O3 Composite Coating[J]. Chemical World, 2004, 45(7): 350-352,347 |
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| Authors: | YANG Qin-peng TANG Jiao-ning GAO Ji-hua LI Jun-qin Gu Kun-mingGONG Xiao-zhong |
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| Abstract: | Ni-nanoAl_2O_3 composite coating on A3 steel substrate was prepared by electrodeposition technique. The influence of current density on the microtructure, micro-hardness, wear and corrosion of the composite coating was investigated. The results indicate that the micro-hardness of the composite coating is twice as that of pure nickel coating. The micro-hardness of the former increases first and reaches a maximum value of 810HV, then decreases as current density increases. As comparing with pure nickel coating, the composite coating enhances 20%～50% in resistance to wear and 70% in resistance to corrosion. XRD analysis indicates that Ni-Al_2O_3 composite coating consists of amorphous Al_2O_3 and FCC Ni phase with a = 0.353 nm, smaller than that in pure nickel coating, but the granule of Ni in composite coating is 23.8 nm, larger than that in pure Ni coating. |
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| Keywords: | electrodeposition composite wear corrosion |
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