Computed tomography (CT) is a powerful evaluation tool for advanced propulsion engine materials and components. CT uses X-rays nondestructively to produce images of two-dimensional slices or planes through an object. This paper will present data from CT investigations of metal-matrix composite (MMC) ring, rod, and coupon structures. Moderate resolution CT data identified density variations within reinforced sections, which were correlated with fiber packing densities. Also, some composite lay-up features were also imaged. High-resolution CT data provided information on fiber spacing and distribution. Correlation with other NDE techniques and destructive analysis was good. CT proved to provide valuable information on the internal state of these metal-matrix composite components. Use of CT during process development of MMCs and the components made from MMCs is encouraged given the results of this study.
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July 1994
Research Papers
Computed Tomography Evaluation of Metal-Matrix Composites for Aeropropulsion Engine Applications
R. N. Yancey,
R. N. Yancey
Advanced Research and Applications Corporation, Dayton, OH 45431
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G. Y. Baaklini
G. Y. Baaklini
NASA Lewis Research Center, Cleveland, OH 44135
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R. N. Yancey
Advanced Research and Applications Corporation, Dayton, OH 45431
G. Y. Baaklini
NASA Lewis Research Center, Cleveland, OH 44135
J. Eng. Gas Turbines Power. Jul 1994, 116(3): 635-639 (5 pages)
Published Online: July 1, 1994
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Received:
February 12, 1993
Online:
April 24, 2008
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Yancey, R. N., and Baaklini, G. Y. (July 1, 1994). "Computed Tomography Evaluation of Metal-Matrix Composites for Aeropropulsion Engine Applications." ASME. J. Eng. Gas Turbines Power. July 1994; 116(3): 635–639. https://doi.org/10.1115/1.2906867
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