| Attributes | Values |
|---|
| rdf:type
| |
| Description
| - ToFD (Time of Flight Diffraction) is non destructive ultrasound (US) testing method which differs from other ultrasonic based methods in that it relies on the detection of diffracted signals rather then reflected signals (pulse echo). The comprehensive coverage afforded by the wide beam used for ToFD inspections make it much less dependent on probe position and defect orientation. So it is possible to detect indications independently on their position and to determinate indication height and length. One of limitations consists in unreliable determination of indication’s position with standard configuration. But when special angle of the wedges is used or transverse scan is performed (or both) then better determination of the indication position is possible. ToFD inspection together with other non destructive testing methods was applied on testing of experimental dissimilar weld joints of rings (outer diameter of 974 mm, height of a welded area was 120 mm) fabricate from NiCrMoV and NirMoV steels. TIG Hot wire welding method was used. Indications of length about 200 mm and height of 2.6 mm were detected using ToFD method, which did not correspond to results of other NDT techniques. So a set of samples were machined from the weldment and macrostructure of cross-sections was observed. The position of defect was localized on the weld joint sections. Fractographic analysis of broken samples revealed a nature of defect. The defects hardly revealed with “standard” NDT were found using the ToFD method. The results of both inspection and analysis have allowed improving the welding procedure to prevent defects reoccurrence.
- ToFD (Time of Flight Diffraction) is non destructive ultrasound (US) testing method which differs from other ultrasonic based methods in that it relies on the detection of diffracted signals rather then reflected signals (pulse echo). The comprehensive coverage afforded by the wide beam used for ToFD inspections make it much less dependent on probe position and defect orientation. So it is possible to detect indications independently on their position and to determinate indication height and length. One of limitations consists in unreliable determination of indication’s position with standard configuration. But when special angle of the wedges is used or transverse scan is performed (or both) then better determination of the indication position is possible. ToFD inspection together with other non destructive testing methods was applied on testing of experimental dissimilar weld joints of rings (outer diameter of 974 mm, height of a welded area was 120 mm) fabricate from NiCrMoV and NirMoV steels. TIG Hot wire welding method was used. Indications of length about 200 mm and height of 2.6 mm were detected using ToFD method, which did not correspond to results of other NDT techniques. So a set of samples were machined from the weldment and macrostructure of cross-sections was observed. The position of defect was localized on the weld joint sections. Fractographic analysis of broken samples revealed a nature of defect. The defects hardly revealed with “standard” NDT were found using the ToFD method. The results of both inspection and analysis have allowed improving the welding procedure to prevent defects reoccurrence. (en)
|
| Title
| - Possibility of using of ultrasound non destructive inspection method ToFD for detecting of defects in weld joint of heavy steel parts
- Possibility of using of ultrasound non destructive inspection method ToFD for detecting of defects in weld joint of heavy steel parts (en)
|
| skos:prefLabel
| - Possibility of using of ultrasound non destructive inspection method ToFD for detecting of defects in weld joint of heavy steel parts
- Possibility of using of ultrasound non destructive inspection method ToFD for detecting of defects in weld joint of heavy steel parts (en)
|
| skos:notation
| - RIV/49193864:_____/11:#0000003!RIV13-MPO-49193864
|
| http://linked.open...avai/predkladatel
| |
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - I, P(FR-TI2/080), Z(MSM4771868401)
|
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/49193864:_____/11:#0000003
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - ultrasound non destructive testing ToFD, TIG Hot wire welding, metallography, fractography (en)
|
| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...v/mistoKonaniAkce
| - Chenai Trade Centre, Chennai, India
|
| http://linked.open...i/riv/mistoVydani
| |
| http://linked.open...i/riv/nazevZdroje
| - IIW International Conference on Global Trends in Joining, Cutting and Surfacing Technology Rozsah stran 917-920
|
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Jandová, Dagmar
- Kasl, Josef
- Folková, Eva
- Petrásek, Pavel
- Zedník, Václav
|
| http://linked.open...vavai/riv/typAkce
| |
| http://linked.open.../riv/zahajeniAkce
| |
| http://linked.open...n/vavai/riv/zamer
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| - Narosa Publishing Kouse PVT. Ltd.
|
| https://schema.org/isbn
| |
![[RDF Data]](/fct/images/sw-rdf-blue.png)
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)