Ultrasonic test and evaluation for iron-based amorphous coatings based on wave packet decomposition

被引：0
|
作者：
Zhang Y. [1 ]
Chen Y. [1 ]
Li Q. [1 ]
Lu C. [1 ]
Zhou R. [1 ]
Long S. [1 ]
机构：
[1] Key Laboratory of NDT Ministry of Education, Nanchang Hangkong University, Nanchang
来源：
Li, Qiufeng | 1600年 / Chinese Vibration Engineering Society卷 / 40期
关键词：
Coatings structure imaging; HVOF; Iron-based amorphous coating; Ultrasonic testing; Wave packet decomposition;
D O I：
10.13465/j.cnki.jvs.2021.12.006
中图分类号：
学科分类号：
摘要：
In the environment of strong friction and corrosion, iron-based amorphous coatings can provide protection for steel equipment. However, there is still no effective method of non-destructive testing and evaluation for the quality of iron-based amorphous coatings. A high frequency ultrasound detection and evaluation method for coating quality was proposed for requirements of coating quality detection. The high-frequency ultrasonic scanning for the information of iron-based amorphous coatings by high-velocity oxygen-fuel (HVOF) was completed through establishing a three-axis ultrasonic scanning system firstly. Then the mother wave packet was designed to deal with the mixing interface echo in the signals, and the detection signals were processed with convolution, wave packet decomposition, and narrow pulse substitution in turn, each interface echo can be separated and extracted and the detection signal-to-noise ratio would be improved. Finally, the reconstructed signals were imaged for visual observation of coating thickness and quality. And the relative error is 3.2% compared with the results of Scanning Electron Microscopy (SEM). © 2021, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：38 / 45
页数：7
相关论文
共 22 条
  • [1] ZHANG Xin, WANG Zehua, LIN Jinran, Et al., A study on high temperature oxidation behavior of high-velocity arc sprayed Fe-based coatings, Surface and Coatings Technology, 283, pp. 255-261, (2015)
  • [2] VIGNESH S, SHANMUGAM K, BALASUBRAMANIAN V, Et al., Identifying the optimal HVOF spray parameters to attain minimum porosity and maximum hardness in iron based amorphous metallic coatings, Defence Technology, 13, 2, (2017)
  • [3] WANG Yong, ZHENG Yugui, WANG Jianqiang, Et al., Passivation behavior of fe-based amorphous metallic coating in NaCl and H2SO4 solutions, Acta Metallurgica Sinica, 51, 1, pp. 49-56, (2015)
  • [4] GONG Yubing, WANG Shanlin, NIE Guimao, Et al., Effects of kerosene content on microstructure and properties of HVOF Fe-based amorphous coatings, China Surface Engineering, 29, 5, pp. 87-94, (2016)
  • [5] GUO Mengqiu, ZHANG Xinghua, QUE Minhong, Et al., Study on properties of HVOF 316L stainless steel Coatin, Failure Analysis and Prevention, 39, 5, pp. 42-48, (2017)
  • [6] QIAO Lei, WU Yuping, HONG Sheng, Et al., Relationships between spray parameters, microstructures and ultrasonic cavitation erosion behavior of HVOF sprayed Fe-based amorphous/nanocrystalline coatings, Ultrasonics Sonochemistry, 39, pp. 39-46, (2017)
  • [7] WANG Guan, CHEN Yao, LI Qiufeng, Et al., Ultrasonic computerized tomography imaging method with combinatorial optimization algorithm for concrete pile foundation, IEEE Access, 7, pp. 132395-132405, (2019)
  • [8] LI Qiufeng, LI Jianhui, LU Chao, Et al., Ultrasonic nonlinear evaluation for carbon-nanotubes reinforced aluminum matrix composites processed by friction stir processing method, Transactions of the China Welding Institution, 38, 11, pp. 87-92, (2017)
  • [9] LIAO Pingping, CAI Maolin, XU Qiyue, Et al., Distinguishing between directed and reflected ultrasonic signals generated by a compressed air leak source based on spectral analysis, Journal of Vibration and Shock, 32, 8, pp. 58-62, (2013)
  • [10] SUN Luoming, LIN Li, MA Zhiyuan, Measurement of the coatings debonding using ultrasonic c-scan imaging based on reflection coefficient amplitude spectrum characterizations, Journal of Mechanical Engineering, 55, 12, pp. 44-49, (2019)
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