ULTRASONIC MICROSTRUCTURAL NOISE PARAMETERS IN A POWDER METAL ALLOY.

B. R. Tittmann, L. A. Ahlberg, K. W. Fertig

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

2 Scopus citations

Abstract

The ultrasonic backscattering characteristics were measured for IN-100, a powder metallurgy alloy used for engine disk components. The data were obtained with a variety of different transducers placed either in a waterbath or in sample contact for a frequency range from about 2 to 18 MHz and statistically averaged over numerous volume elements of the samples. Micrographical examination provided size and number distributions for grain and pore structure and showed that the predominant source for backscatter were the larger micropores. Two samples with different micropore densities were used to demonstrate the feasibility of calculating microstructural parameters from the ultrasonic data.

Original languageEnglish (US)
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation
EditorsDonald O. Thompson, Dale E. Chimenti
PublisherPlenum Press
Pages57-64
Number of pages8
Volume3 A
ISBN (Print)0306416786
StatePublished - 1984

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Tittmann, B. R., Ahlberg, L. A., & Fertig, K. W. (1984). ULTRASONIC MICROSTRUCTURAL NOISE PARAMETERS IN A POWDER METAL ALLOY. In D. O. Thompson, & D. E. Chimenti (Eds.), Review of Progress in Quantitative Nondestructive Evaluation (Vol. 3 A, pp. 57-64). Plenum Press.