Matches in SemOpenAlex for { <https://semopenalex.org/work/W267689968> ?p ?o ?g. }
Showing items 1 to 62 of
62
with 100 items per page.
- W267689968 abstract "In the rail industry, sections of high strength Manganese steel are employed at critical locations in railroad networks. Ultrasonic inspections of Manganese steel microstructures are difficult to inspect with conventional means, as the propagation medium is highly attenuative, coarse-grained, anisotropic and nonhomogeneous in nature. Current in-service inspection methods are ineffective while pre-service X-ray methods (used for full-volumetric examinations of components prior to shipment) are time-consuming, costly, require special facilities and highly trained personnel for safe operations, and preclude manufacturers from inspecting statistically meaningful numbers of frogs for effective quality assurance. In-service examinations consist of visual inspections only and by the time a defect or flaw is visually detected, the structural integrity of the component may already be compromised, and immediate repair or replacement is required. A novel ultrasonic inspection technique utilizing low frequency ultrasound (100 to 500 kHz) combined with a synthetic aperture focusing technique (SAFT) for effective reduction of signal clutter and noise, and extraction of important features in the data, has proven to be effective for these coarse grained steel components. Results from proof-of-principal tests in the laboratory demonstrate an effective means to detect and localize reflectors introduced as a function of size and depth from the top more » of the frog rail. Using non-optimal, commercially available transducers coupled with the low-frequency/SAFT approach, preliminary evaluations were conducted to study the effects of the material microstructure on ultrasonic propagation, sensitivity and resolution in thick section frog components with machined side-drilled holes. Results from this study will be presented and discussed. « less" @default.
- W267689968 created "2016-06-24" @default.
- W267689968 creator A5002597537 @default.
- W267689968 creator A5073284706 @default.
- W267689968 creator A5091597843 @default.
- W267689968 date "2004-11-01" @default.
- W267689968 modified "2023-09-27" @default.
- W267689968 title "Low Frequency-SAFT Inspection Methodology for Coarse-Grained Steel Rail Components (Manganese Steel Frogs)" @default.
- W267689968 cites W64184890 @default.
- W267689968 hasPublicationYear "2004" @default.
- W267689968 type Work @default.
- W267689968 sameAs 267689968 @default.
- W267689968 citedByCount "0" @default.
- W267689968 crossrefType "journal-article" @default.
- W267689968 hasAuthorship W267689968A5002597537 @default.
- W267689968 hasAuthorship W267689968A5073284706 @default.
- W267689968 hasAuthorship W267689968A5091597843 @default.
- W267689968 hasConcept C121332964 @default.
- W267689968 hasConcept C127413603 @default.
- W267689968 hasConcept C139730468 @default.
- W267689968 hasConcept C192562407 @default.
- W267689968 hasConcept C24890656 @default.
- W267689968 hasConcept C41008148 @default.
- W267689968 hasConcept C56318395 @default.
- W267689968 hasConcept C66938386 @default.
- W267689968 hasConcept C81288441 @default.
- W267689968 hasConceptScore W267689968C121332964 @default.
- W267689968 hasConceptScore W267689968C127413603 @default.
- W267689968 hasConceptScore W267689968C139730468 @default.
- W267689968 hasConceptScore W267689968C192562407 @default.
- W267689968 hasConceptScore W267689968C24890656 @default.
- W267689968 hasConceptScore W267689968C41008148 @default.
- W267689968 hasConceptScore W267689968C56318395 @default.
- W267689968 hasConceptScore W267689968C66938386 @default.
- W267689968 hasConceptScore W267689968C81288441 @default.
- W267689968 hasLocation W2676899681 @default.
- W267689968 hasOpenAccess W267689968 @default.
- W267689968 hasPrimaryLocation W2676899681 @default.
- W267689968 hasRelatedWork W109127843 @default.
- W267689968 hasRelatedWork W1633171600 @default.
- W267689968 hasRelatedWork W1965980624 @default.
- W267689968 hasRelatedWork W1979002796 @default.
- W267689968 hasRelatedWork W1999455324 @default.
- W267689968 hasRelatedWork W2001963193 @default.
- W267689968 hasRelatedWork W2008107437 @default.
- W267689968 hasRelatedWork W200944710 @default.
- W267689968 hasRelatedWork W2036340311 @default.
- W267689968 hasRelatedWork W2091829014 @default.
- W267689968 hasRelatedWork W2109197236 @default.
- W267689968 hasRelatedWork W2110674128 @default.
- W267689968 hasRelatedWork W2139475117 @default.
- W267689968 hasRelatedWork W2164798445 @default.
- W267689968 hasRelatedWork W2460649172 @default.
- W267689968 hasRelatedWork W2506858619 @default.
- W267689968 hasRelatedWork W591429728 @default.
- W267689968 hasRelatedWork W7275014 @default.
- W267689968 hasRelatedWork W766456231 @default.
- W267689968 hasRelatedWork W837603014 @default.
- W267689968 isParatext "false" @default.
- W267689968 isRetracted "false" @default.
- W267689968 magId "267689968" @default.
- W267689968 workType "article" @default.