唐明奇,禹业帅,辛畅,冯在强,周波,蒋正权,王峰,谢屹鹏,闫镇威.纳米镍颗粒改性钛合金微弧氧化膜的摩擦性能[J].表面技术,2024,53(17):94-102.
TANG Mingqi,YU Yeshuai,XIN Chang,FENG Zaiqiang,ZHOU Bo,JIANG Zhengquan,WANG Feng,XIE Yipeng,YAN Zhenwei.Friction Properties of Microarc Oxidation Coating on Titanium Alloy Modified by Ni Nanoparticles[J].Surface Technology,2024,53(17):94-102 |
| 纳米镍颗粒改性钛合金微弧氧化膜的摩擦性能 |
| Friction Properties of Microarc Oxidation Coating on Titanium Alloy Modified by Ni Nanoparticles |
| 投稿时间：2023-09-26 修订日期：2024-03-04 |
| DOI：10.16490/j.cnki.issn.1001-3660.2024.17.008 |
| 中文关键词: 钛合金 微弧氧化 纳米镍颗粒 膜层 摩擦性能 |
| 英文关键词:titanium alloy microarc oxidation Ni nanoparticles coating friction properties |
| 基金项目:河南省科技攻关项目(242102221040，242102220010);河南省基本科研业务费支持项目(2022KY11) |
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| Author | Institution |
| TANG Mingqi | School of Material Science and Engineering, Zhengzhou 450045, China |
| YU Yeshuai | School of Material Science and Engineering, Zhengzhou 450045, China |
| XIN Chang | School of Material Science and Engineering, Zhengzhou 450045, China |
| FENG Zaiqiang | School of Material Science and Engineering, Zhengzhou 450045, China |
| ZHOU Bo | Henan Boiler and Pressure Vessel Inspection Technology Research Institute, Zhengzhou 450016, China |
| JIANG Zhengquan | School of Material Science and Engineering, Zhengzhou 450045, China |
| WANG Feng | Henan Boiler and Pressure Vessel Inspection Technology Research Institute, Zhengzhou 450016, China |
| XIE Yipeng | Henan Boiler and Pressure Vessel Inspection Technology Research Institute, Zhengzhou 450016, China |
| YAN Zhenwei | School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China |
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| 中文摘要: |
| 目的 基于微弧成膜机制形成的类陶瓷氧化膜层中存在大量孔洞、裂纹和凸起，使得膜层的致密性和耐磨性不够理想。通过在钛合金微弧氧化膜中引入镍，从而改善膜层的组织结构，提高膜层的抗磨性能。方法 利用不同含量纳米镍颗粒的碱性电解液，在TC4钛合金表面制备微弧氧化膜层。利用SEM、EDS、XRD、XPS对微弧氧化膜层的微观结构、截面形貌、相组成和元素组成进行分析，采用显微维氏硬度计和摩擦磨损试验机检测膜层的硬度和摩擦学性能。结果 纳米镍颗粒的引入，使得微弧氧化膜的厚度增加，提高了膜层的致密性。当纳米镍颗粒的加入量(质量浓度)为2 g/L，且微弧氧化时间为45 min时，膜层表面微孔分布均匀，凸起和微裂纹较少。微弧氧化膜主要由金红石相和锐钛矿相组成，进入膜层的Ni主要以NiO的形式存在。在添加2 g/L纳米镍颗粒、微弧氧化时间为45 min时，制备的膜层硬度为452HV，抗磨性能表现最好，其摩擦因数一直稳定在0.75左右，抗磨性能相较于基础膜层提升了约67%。结论 适当加入纳米镍颗粒及采用合理的微弧氧化时间能够减少膜层的微孔和微裂纹，进一步提高膜层的硬度和抗磨性能。 |
| 英文摘要: |
| Titanium alloys have the advantages of light weight, high specific strength, and good corrosion resistance, but the disadvantages of low hardness and poor abrasion resistance limit their applications. Ceramic-like oxide coatings metallurgically bonded with the matrix can be prepared on titanium alloys by microarc oxidation (MAO), improving the hardness and friction resistance of the titanium alloys. However, these oxide coatings are usually composed mainly of TiO2, and there are many discharge holes and bulges, so the density, hardness, and abrasion resistance of MAO coatings are not good enough. The MAO coatings were modified by adding Ni nanoparticles in the MAO electrolyte of TC4 alloy. On the one hand, the densification of the coating could be increased; on the other hand, the excellent toughness of Ni could enhance the hardness and brittleness of the MAO coatings. Finally, the abrasion resistance of the MAO coatings could be improved. The effects of the amount of Ni nanoparticles in the electrolyte on the surface microstructure, cross-sectional morphology, phase composition, and elemental composition of the MAO coatings were analyzed by scanning electron microscope (SEM), energy dispersive spectrometer (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS). A Vickers hardness tester and a friction and wear testing machine were used to detect the hardness and friction performance of the MAO coatings prepared in different electrolytes. The morphology and volume loss of the MAO coatings after the friction test were studied by 3D topography instrument. The results showed that the thickness and compactness of the MAO coatings increased with the increase of the content of Ni nanoparticles in the electrolyte. The oxide coatings prepared in different electrolytes mainly comprised rutile TiO2 and anatase TiO2. The Ni nanoparticles added in the electrolyte participated in the MAO coating formation process and existed in the coatings in the form of NiO. When the amount of Ni nanoparticles was 2 g/L, the surface micropores of the MAO coatings were evenly distributed, and the pores and cracks were few. The MAO treatment increased the hardness of TC4 alloy. The hardness of the MAO coatings prepared in the base electrolyte for 45 min was about 420HV. The MAO coatings obtained in the electrolyte containing 2 g/L nickel nanoparticles for 45 min had the highest hardness (about 452HV). The friction coefficient of the base MAO coatings changed significantly during the friction experiment, while the addition of Ni nanoparticles could stabilize the friction coefficient of the MAO coatings. The base MAO coatings was worn through in the friction test, and the addition of Ni nanoparticles reduced the wear volume of the oxide coating. The MAO coating formed in the electrolyte with 2 g/L Ni nanoparticles was the best, its friction coefficient as stable at 0.75, and the wear volume was reduced by 67% compared with the base MAO coating. Adding an appropriate amount of Ni nanoparticles in the electrolyte and a reasonable MAO time can reduce the micropores and microcracks of MAO coatings, change their phase composition, and further improve the hardness and abrasion resistance of MAO coatings. |
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