Ultrasonic NDT and Imaging of Centrifugally Cast Stainless Steel Samples

dc.contributor.author Bilgutay, Nihat
dc.contributor.author Murthy, Rashmi
dc.contributor.author Saniie, Jafar
dc.date 2018-02-14T05:50:41.000
dc.date.accessioned 2020-06-30T06:35:10Z
dc.date.available 2020-06-30T06:35:10Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 1989
dc.date.issued 1989
dc.description.abstract <p>Centrifugally cast stainless steel (CCSS) components are currently being used in many critical industrial applications such as nuclear reactors, which have stringent inspection requirements. Non-destructive testing (NDT) of these components are governed by strict guidelines to insure safe operating conditions. Current literature indicates that ultrasonic NDT techniques provide potentially the most promising and reliable methods for the inspection of CCSS components. However, the received signal often has low signal-to-noise ratio (SNR) due to ultrasonic attenuation caused by grain scattering. Furthermore, ultrasonic inspection of CCSS components is plagued by high attenuation, velocity variations, mode conversion, beam divergence and/or convergence, and skewing. Therefore, the signals arising from metallurgical discontinuities or defects caused by thermal fatigue and stress corrosion, can appear to a manual ultrasonic inspector as random, stationary-noise signals. The ability to detect such defects is at best limited with the conventional non-destructive evaluation techniques. In this paper, some spectral methods are presented to improve flaw visibility by reducing the background noise from the CCSS microstructure.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1989/allcontent/269/
dc.identifier.articleid 2495
dc.identifier.contextkey 5799616
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1989/allcontent/269
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/59374
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1989/allcontent/269/1989_Bilgutay_UltrasonicNDT.pdf|||Fri Jan 14 23:04:22 UTC 2022
dc.source.uri 10.1007/978-1-4613-0817-1_269
dc.title Ultrasonic NDT and Imaging of Centrifugally Cast Stainless Steel Samples
dc.type event
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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