Investigation of the microstructure of cast iron by laser ultrasonic surface wave spectroscopy

Autor:	Vitalyi Gusev, Silvio Elton Kruger, Kris Van de Rostyne, Weimin Gao, Jan Thoen, Walter Lauriks, Christ Glorieux
Rok vydání:	2001
Předmět:	Materials science Scattering business.industry Mechanical Engineering Attenuation Ultrasound engineering.material Condensed Matter Physics Microstructure Optics Mechanics of Materials Surface wave engineering General Materials Science Ultrasonic sensor Graphite Cast iron business
Zdroj:	Materials Science and Engineering: A. 313:170-179
ISSN:	0921-5093
DOI:	10.1016/s0921-5093(01)01143-1
Popis:	We have used an all-laser surface wave ultrasonic method to investigate cast iron samples with a variety of morphologies of included graphite precipitation. The relation between ultrasonic attenuation and the microstructure of cast iron is discussed. The frequency dependence of ultrasonic attenuation was obtained in a broad frequency band including the three characteristic regions of scattering. The scatterer size of the samples could be evaluated from the measurement, and good agreement was found between the average scatterer size estimated from our ultrasonic data and micrographic data. The demonstrated sensitivity of the ultrasonic propagation parameters to the microstructural properties of cast iron illustrates the strong potential of this technique for non-destructive microstructural characterization of polycrystalline materials.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::34a7f855732ffe3861b48f6c70101662 https://doi.org/10.1016/s0921-5093(01)01143-1 Zobrazit plný text záznamu Full Text from ScienceDirect