占空比对铝合金微弧氧化膜层的摩擦性能影响
Effect of Anode Duty Ratio on Friction and Wear Characteristics of Ceramic Film Produced on Aluminum Alloy by Micro-Arc Oxidation
DOI: 10.12677/APP.2021.112013, PDF,    国家自然科学基金支持
作者: 文 帅, 李小晶, 张 敏*：辽宁师范大学物理与电子技术学院，辽宁 大连
关键词: 微弧氧化；铝合金；摩擦磨损；占空比；Micro-Arc Oxidation； Aluminum Alloy； Friction and Wear； Duty Cycle
摘要: 采用微弧氧化技术在2A50铝合金表面原位生成耐磨的高硬度微弧氧化膜层，考察正向占空比对2A50铝合金表面陶瓷层的影响规律。利用扫描电子电镜、X射线衍射仪表征微弧氧化膜层的微观形貌、物相组成，利用显微硬度计测试微弧氧化膜层的硬度，并通过摩擦磨损试验机与轮廓仪评价膜层的耐磨性。结果表明：陶瓷层主要成分为α-Al2O3与γ-Al2O3；当正向占空比小于25%时，随占空比的增加，不稳定的γ-Al2O3逐渐转变为稳定的α-Al2O3，陶瓷层结构逐渐致密。当占空比大于25%时，陶瓷层的致密性与结晶度降低；在占空比为25%时，陶瓷层的硬度最大(约1107 HV0.5)，磨损率较低(约2.67 × 10−10 cm3 (N∙m)−1)，磨痕表面轮廓规整且浅，综合耐磨性最佳。
Abstract: Hard and wear-resistant ceramic coatings were prepared on the surface of 2A50 aluminum alloy using micro-arc oxidation (MAO) technique to investigate the effect of the anode duty cycle on the ceramic coating. The microstructure and phase composition of the MAO ceramic coatings were characterized by scanning electron microscopy and X-ray diffractometry. The hardness of the coat-ings was tested by microhardness tester, and the wear resistance was evaluated by friction and wear tester. The results show that the main components of the ceramic coatings are α-Al2O3 and γ-Al2O3. When the anode duty ratio is less than 25%, the unstable γ-Al2O3 gradually changes into stable α-Al2O3 with the increase of duty ratio, and the ceramic coatings become gradually denser. When the duty cycle is more than 25%, the compactness and crystallinity of the ceramic coatings decrease; when the duty cycle is 25%, the hardness of the ceramic coatings is the highest (about 1107 HV0.5), the wear rate is low (about 2.67 × 10−10 cm3 (N∙m)−1), the worn track is regular and shallow, and the comprehensive wear resistance is the best.
文章引用：文帅, 李小晶, 张敏. 占空比对铝合金微弧氧化膜层的摩擦性能影响[J]. 应用物理, 2021, 11(2): 108-118. https://doi.org/10.12677/APP.2021.112013

参考文献

[1] 董星, 郭睿智, 段雄. 前混合水射流喷丸强化表面力学特性及疲劳寿命试验[J]. 机械工程学报, 2011, 47(14): 164-170.
[2] 邓伟林, 冯可芹, 王均, 等. 挤压比对6061铝合金耐腐蚀性能的影响[J]. 四川大学学报(工程科学版), 2012(S1): 291-296.
[3] 唐大富. 超声冲击处理对7A52铝合金焊接接头疲劳性能的影响[D]: [硕士学位论文]. 呼和浩特: 内蒙古工业大学, 2015.
[4] 初鑫, 任鑫, 郝胜智, 等. 铝合金表面改性技术的发展现状[J]. 热加工工艺, 2010, 39(20): 123-127.
[5] Wei, X., Huang, H., Sun, M., et al. (2019) Effects of Honeycomb Pretreatment on MAO Coating Fabricated on Aluminum. Surface and Coatings Technology, 363, 265-272. [Google Scholar] [CrossRef] 
[6] 刘莉, 张鲲, 熊辉辉, 等. 阳极氧化工艺对6061铝合金草酸氧化膜耐磨耐蚀性的影响[J]. 材料热处理学报, 2015, 36(11): 229-236.
[7] 张瑞珠, 贾新杰, 唐明奇, 等. TiN颗粒对镁合金微弧氧化过程及膜层性能的影响[J]. 表面技术, 2017, 46(9): 81-86.
[8] Guo, Q.Q., Xu, D.P., Yang, W., et al. (2020) Synthesis, Corrosion, and Wear Resistance of a Black Microarc Oxidation Coating on Pure Titanium. Surface and Coatings Technology, 386, Article ID: 125454. [Google Scholar] [CrossRef] 
[9] Jiang, Z.H., Zeng, X.B. and Zhong, P.Y. (2006) Preparation of Micro-Arc Oxidation Coatings on Magnesium Alloy and Its Thermal Shock Resistance Property. Rare Metals, 25, 270-273. [Google Scholar] [CrossRef] 
[10] Jiang, H., Shao, Z. and Jing, B. (2011) Effect of Electrolyte Composition on Photocatalytic Activity and Corrosion Resistance of Micro-Arc Oxidation Coating on Pure Titanium. Procedia Earth & Planetary Science, 2, 156-161. [Google Scholar] [CrossRef] 
[11] Wu, Y.F., Wang, Y.M., Jing, Y.B., et al. (2017) In Vivo Study of Microarc Oxidation Coated Biodegradable Magnesium Plate to Heal Bone Fracture Defect of 3 mm Width. Colloids and Surfaces B Biointerfaces, 158, 147-156. [Google Scholar] [CrossRef] [PubMed]
[12] Guo, X., Du, K., Ge, H., et al. (2013) Good Sensitivity and High Stability of Humidity Sensor Using Micro-Arc Oxidation Alumina Film. Electrochemistry Communications, 28, 95-99. [Google Scholar] [CrossRef] 
[13] 陈泉志, 童庆, 黄德宇, 等. 电能量参数对微弧氧化技术及能耗影响的研究进展[J]. 材料导报, 2018, 32(31): 278-283.
[14] 唐仕光, 陈泉志, 李少波, 等. 金属复合材料微弧氧化研究进展[J]. 表面技术, 2016, 45(11): 23-31.
[15] Hussein, R.O., Nie, X. and Northwood, D.O. (2012) A Spectroscopic and Microstructural Study of Oxide Coatings Produced on a Ti-6Al-4V Alloy by Plasma Elec-trolytic Oxidation. Materials Chemistry and Physics, 134, 484-492. [Google Scholar] [CrossRef] 
[16] Yilmaz, M.S. and Sahin, O. (2018) Applying High Volt-age Cathodic Pulse with Various Pulse Durations on Aluminium via Micro-Arc Oxidation (MAO). Surface and Coat-ings Technology, 347, 278-285. [Google Scholar] [CrossRef] 
[17] Lu, L.H., Shen, D.J., Zhang, J.W., et al. (2011) Evolution of Micro-Arc Oxidation Behaviors of the Hot-Dipping Aluminum Coatings on Q235 Steel Substrate. Applied Surface Sci-ence, 257, 4144-4150. [Google Scholar] [CrossRef] 
[18] 陈喜娣, 蔡启舟, 尹荔松. 占空比对6061铝合金微弧氧化膜层结构与耐蚀性的影响[J]. 特种铸造及有色合金, 2011, 31(7): 671-675.
[19] 金小越, 吴杰, 杨璇, 等. 槽电压对纯铁表面液相等离子体电解硼碳氮三元共渗层摩擦磨损性能的影响[J]. 材料工程, 2017, 45(4): 58-64.
[20] 米天健. 微弧氧化系统下等离子体的形成机制与膜层自组织生长动力学[D]: [博士学位论文]. 西安: 西安理工大学, 2016.
[21] Wang, J., Huang, S., Huang, H., et al. (2019) Effect of Micro-Groove on Microstructure and Performance of MAO Ceramic Coating Fabricated on the Surface of Aluminum Alloy. Journal of Alloys and Compounds, 777, 94-101. [Google Scholar] [CrossRef] 

为你推荐