Nondestructive evaluation of PVD/CVD TiN coated WC/Co by acoustic spectro-microscopy

Tatsuhiko Aizawa, Yusuke Tsukahara, Junji Kihara

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

1 Citation (Scopus)

Abstract

Acoustic spectro-microscopy has been developed and applied to the quantitative nondestructive evaluation of PVD/CVD TiN coated WC/Co cermets. From the measured Rayleigh wave velocity dispersion with frequency, the effect of Co-phase agglomeration in microstructure was evaluated: microstructural change with increase of Co content reflects on the measured acoustic structure. For PVD/CVD TiN coated WC/Co, the Rayleigh wave velocity dispersion curves for various coating thickness were assembled into one master curve which is intrinsic to coating procedure. Direct comparison of measured master curves with predicted dependency of the Rayleigh wave velocity on frequency yields different elastic properties both for PVD and CVD TiN coatings.

Original languageEnglish
Title of host publicationAcousto-Optics and Acoustic Microscopy
PublisherPubl by ASME
Pages55-70
Number of pages16
ISBN (Print)0791810755
Publication statusPublished - 1992 Dec 1
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Anaheim, CA, USA
Duration: 1992 Nov 81992 Nov 13

Publication series

NameAmerican Society of Mechanical Engineers, Applied Mechanics Division, AMD
Volume140
ISSN (Print)0160-8835

Other

OtherWinter Annual Meeting of the American Society of Mechanical Engineers
CityAnaheim, CA, USA
Period92/11/892/11/13

ASJC Scopus subject areas

  • Mechanical Engineering

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