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Volume 35 Issue 8
Aug.  2009
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Journal of Beijing University of Aeronautics and Astronautics  > 2009  >  35(8): 1031-1034.
Gao Yifei, Zhou Zhenggan, He Fangchenget al. Homogeneity testing of aluminum metal matrix composites by TIRP method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(8): 1031-1034. (in Chinese)
Citation: Gao Yifei, Zhou Zhenggan, He Fangchenget al. Homogeneity testing of aluminum metal matrix composites by TIRP method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(8): 1031-1034. (in Chinese)
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Homogeneity testing of aluminum metal matrix composites by TIRP method

  • 1.

    School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 2. Department of Non-Destructive Testing, Beijing Institute of Aeronautical Materials, Beijing 100095, China

  • Received Date: 20 Jun 2008
  • Publish Date: 31 Aug 2009
    Abstract
  • In order to evaluate the homogeneity of SiCp reinforced aluminum metal-matrix composites (MMC) fabricated by powder metallurgy, an ultrasonic velocity imaging was carried out with the method of thickness independent reflector plate (TIRP). Accuracy and precision were improved and the thickness was unnecessary in the velocity imaging with TIRP method. Firstly, the purpose of ultrasonic velocity imaging of MMC and basic principle of TIRP were introduced. Secondly, the structure of ultrasonic scan system was described. A double-scan method was applied to improve accuracy. Thirdly, the experiment results of ultrasonic velocity imaging of MMC specimen obtained with back surface echo (BSE), single-scan and double-scan method of TIRP respectively were compared and discussed. The images generated with double-scan method of TIRP have more details than those with BSE and single-scan method. Finally, the factors affecting accuracy and precision in the implementation were considered which may be used to advance the experiment.

     

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  • [1] Lemster K, Graule T, Minghetti T, et al. Mechanical and machining properties of X38CrMoV5-1/Al2O3 metal matrix composites and components[J]. Materials Science and Engineering A,2006,420(1/2):296-305 [2] 魏勤,张迎元. SiCp /Al复合材料中增强体SiC含量的测定方法研究[J].华东船舶工业学院学报:自然科学版, 2005, 19(4): 86-89 Wei Qin, Zhang Yingyuan. Research on volume fraction mensuration of SiC reinforcer in SiCp/Al composites[J]. Journal of East China Shipbuilding Institute:Natural Science Edition, 2005, 19(4):86-89(in Chinese) [3] Liaw P K. Determining material properties of metal-matrix composites by NDE[J]. JOM, 1992(10):36-40 [4] Dong Fei, Hsu D K, Warchol M. Simultaneous velocity, thickness and profile imaging by ultrasonic scan[J].Journal of Nondestructive Evaluation, 2001, 20(3):95-112 [5] 他得安,王威琪,余建国.松质骨中两种纵波的传播特性分析[J].中国生物医学工程学报,2005,24(1):17-20 Ta Dean, Wang Weiqi, Yu Jianguo. Analysis of the propagation properties of two compressional waves in cancellous bone[J]. Chinese Journal of Biomedical Engineering,2005,24(1):17-20(in Chinese) [6] Hsu D K. Simultaneous velocity and thickness imaging by ultrasonic scan [J]. QNDE, 2001, 20B:695-702
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