Optimization of preparation process of aluminum bronze coating by hvof and effect of process parameters on coating properties

被引：0
|
作者：
Shi Z.-K. [1 ,2 ]
Xu L.-P. [2 ,3 ]
Zhang J.-F. [2 ,3 ]
Xiao G.-S. [4 ]
Deng C.-M. [2 ,3 ]
Song J.-B. [2 ,3 ]
Liu M. [2 ,3 ]
Hu Y.-J. [1 ]
机构：
[1] School of Materials and Energy, Guangdong University of Technology, Guangzhou
[2] National Engineering Laboratory for Modern Materials Surface Engineering Technology, Guangzhou
[3] The Key Lab of Guangdong for Modern Surface Engineering Technology, Guangdong Institute of New Materials, Guangzhou
[4] AECC Hunan Aviation Powerplant Research Institute, Zhuzhou
来源：
Surface Technology | 2021年 / 50卷 / 08期
基金：
国家重点研发计划;
关键词：
Aluminum alloy; Aluminum bronze coating; HVOF; Orthogonal experimental; Process optimization; Range ananlysis;
D O I：
10.16490/j.cnki.issn.1001-3660.2021.08.010
中图分类号：
学科分类号：
摘要：
In order to obtain aluminum bronze coating with excellent coating quality on cast aluminum surface by High Velocity Oxygen Fuel spraying technology, the effects of kerosene flux, oxygen flux, powder feeding rate and spraying distance on coating thickness, porosity, microhardness and bonding strength are studied based on orthogonal experiment. The phase composition of the spray powder and coatings is analyzed by XRD. The cross-section morphology of the coating is observed by SEM, and the coating thickness is measured. The porosity is measured by ImageJ. The microhardness and bonding strength of the coating are measured by micro hardness tester and electronic universal testing machine. Range analysis method is used to analyze the results of orthogonal experiment to determine the optimal process parameters. It is obtained by range analysis that the optimal process parameters are kerosene flux 22 L/h, the oxygen flux 900 L/min, the powder feeding rate 80 g/min, and the spraying distance 200 mm. The coating thickness is 405.43 μm, the porosity is 0.10%, the bonding strength is 61.63 MPa, and the microhardness is 330.3 HV0.3 when the optimal process is adopted. The results show that the phase composition of the spray powder and coating is the same, both of which are α phase and β' phase. According to the range analysis table, different process parameters have different effects on the porosity, thickness, microhardness and bonding strength of the coating. The powder feeding rate has the greatest influence on the coating thickness and porosity, the spraying distance has the greatest influence on the micro hardness of the coating, and the kerosene flux has the greatest influence on the bonding strength. © 2021, Chongqing Wujiu Periodicals Press. All rights reserved.
引用
收藏
页码：101 / 108
页数：7
相关论文
共 24 条
  • [1] Hai-Wei Z., Bing-Hang S.H.I., Xu-Dong L., Et al., The technology for aluminium bronze coatings prepared by plasma spray[J], Metallurgical Collections, 4, pp. 4-8, (2015)
  • [2] Yuan Yuan L.I., Ngai T.L., Wei X., Mechanical, friction and wear behaviors of a novel high-strength wear-resisting aluminum bronze[J], Wear, 197, 1-2, pp. 130-136, (1996)
  • [3] Raju D., Govindan A.R., Subramanian J., Et al., Surface alloying of aluminium bronze with chromium: Processing, testing, and characterization[J], Materials Today: Proceedings, 27, pp. 2191-2199, (2020)
  • [4] Van Der Heide E., Stam E.D., Giraud H., Et al., Wear of aluminium bronze in sliding contact with lubricated stainless steel sheet material[J], Wear, 261, 1, pp. 68-73, (2006)
  • [5] Boromei I., Ceschini L., Martini C., Et al., Aluminium bronze-steel sliding contact in packaging applications: Failure analysis and lab-scale tribological tests[J], Engineering Failure Analysis, 112, (2020)
  • [6] Li Hui L.I., Qin R., Feng Y., Et al., Friction and wear characteristics of aluminum bronze (QAl10-4-4) bearing materials under high-temperature dry sliding conditions[J], Journal of the Brazilian Society of Mechanical Sciences and Engineering, 42, 7, pp. 1-8, (2020)
  • [7] Jing Z., Composite Fretting Wear Performance of HVOF Sprayed Wc-Cocr Coatings[D], (2014)
  • [8] Chao-Ji Z., Xiao-Ming W.A.N.G., Sheng Z., Et al., Corrosion resistance of aluminum-rich bronze coating deposited by low thermal supersonic spraying technique maintaining original characteristics of particle[J], China Surface Engineering, 30, 3, pp. 66-73, (2017)
  • [9] Jie Y., Yu-Long A.N., Guo-Liang H., Et al., Fretting behaviors of aluminum bronze coatings prepared by APS and HVOF spraying technology[J], China Surface Engineering, 25, 5, pp. 105-109, (2012)
  • [10] Wen-Sheng L.I., Hai-Min Z.H.A.I., Shun-Cai W., Et al., Dry sliding wear mechanisms of Ce in aluminum bronze coatings[J], Journal of Materials Science, 55, 7, pp. 3045-3055, (2020)
123