Nondestructive X-ray tomographic microscopy of damage in various continuous-fiber metal matrix composites

Stuart R. Stock*, Thomas M. Breunig, Abbas Guvenilir, John H. Kinney, Monte C. Nichols

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

X-ray tomographic microscopy (XTM), a high resolution variant of industrial computed tomography, provides nondestructive, high-resolution 'sectioning' of samples and allows three-dimensional mapping of X-ray absorptivity multiple times during an in-situ experiment on a single sample. The capabilities of XTM for damage accumulation studies in composites are described in this paper, with emphasis on what can be accomplished using monochromatic synchrotron radiation. Results are shown for five continuous-fiber metal matrix composites (MMC) (aligned SiC/Al, [02/±45]s SiC/Al, aligned SiC/Ti3Al, aligned SiC/Ti-6Al-4V, and aligned Al2O3/NiAl). The samples' cross-sectional dimensions are approximately 1.5 by 1.5 mm or smaller, and the variation of X-ray absorptivity is measured within each (5.6-μm)3 volume element of the volume studied. An experimental approach for nondestructively quantifying damage evolution with XTM is outlined, and preliminary results are presented for the aligned-fiber SiC/Al MMC. Also discussed are the prospects for improved spatial resolution with XTM and for examining specimens under applied loads and/or with dimensions larger than the current 2 or 3 mm.

Original languageEnglish (US)
Title of host publicationASTM Special Technical Publication
PublisherPubl by ASTM
Pages25-34
Number of pages10
Edition1128
ISBN (Print)0803114745
StatePublished - Dec 1 1992
EventInternational Symposium on Damage Detection and Quality Assurance in Composite Materials - San Antonio, TX, USA
Duration: Nov 13 1990Nov 14 1990

Other

OtherInternational Symposium on Damage Detection and Quality Assurance in Composite Materials
CitySan Antonio, TX, USA
Period11/13/9011/14/90

ASJC Scopus subject areas

  • Engineering(all)

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    Stock, S. R., Breunig, T. M., Guvenilir, A., Kinney, J. H., & Nichols, M. C. (1992). Nondestructive X-ray tomographic microscopy of damage in various continuous-fiber metal matrix composites. In ASTM Special Technical Publication (1128 ed., pp. 25-34). Publ by ASTM.