Paper Title:
In-Process Damage Monitoring and Stress Analysis of Thermal Spray Coating
  Abstract

AE method is a well-known technique for in-situ monitoring of damage behavior by attached piezoelectric transducer. However, this conventional detection of AE signals has certain limitations. In recent years, numerous efforts have addressed the substitution of laser-based techniques for ultrasonic nondestructive evaluation in place of conventional piezoelectric transducers. Especially, a laser interferometer can be used to measure a displacement or velocity at materials surface using Doppler-shift. However, there are few reports referring to the detection of AE signals in the practical materials and testing because of the difficulty of experiments. We developed the AE measurement system with laser interferometer to apply this technique to microcrack evaluation and reported the quantitative AE analysis in various materials. This paper demonstrates AE results from thermal spray coatings at elevated temperature.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
2403-2406
DOI
10.4028/www.scientific.net/KEM.353-358.2403
Citation
K. Taniguchi, M. Enoki, K. Tomita, "In-Process Damage Monitoring and Stress Analysis of Thermal Spray Coating", Key Engineering Materials, Vols. 353-358, pp. 2403-2406, 2007
Online since
September 2007
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Price
$32.00
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