Characterization of cast irons by laser-ultrasonic surface acoustic waves

Surface acoustic waves generated and detected by a laser-ultrasonic system are used to characterize graphite precipitates in cast irons. Measurements of velocity and amplitude as a function of frequency are performed in samples with nodular, vermicular and lamellar forms of graphite. The results sho...

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Bibliographic Details
Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 256; no. 1-2; pp. 312 - 314
Main Authors KRUGER, S. E, GAO, W, GLORIEUX, C, CHARLIER, J, REBELLO, J. M. A, LAURIKS, W, THOEN, J
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier 15.11.1998
Subjects
Analysing. Testing. Standards
Applied sciences
Exact sciences and technology
Measurement of properties and materials state
Metals. Metallurgy
Nondestructive testing
Compacted graphite cast iron
Acoustic surface waves
Precipitate
Experimental study
Acoustic method
Grey iron
Laser beam
Wave generation
Microstructure
Non destructive test
Ultrasound
Ductile cast iron
Defect detection
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Summary:Surface acoustic waves generated and detected by a laser-ultrasonic system are used to characterize graphite precipitates in cast irons. Measurements of velocity and amplitude as a function of frequency are performed in samples with nodular, vermicular and lamellar forms of graphite. The results show that the ultasonic parameters allow classifying very clearly these different cast iron types.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0921-5093
1873-4936