TOMOWELD

Development of Quantitative Radiographic Tomography technology for the in-situ Inspection of welded austenitic safety critical pipework in the nuclear power generation and petrochemical industries

Coordinatore	TWI LIMITED    more  Organization address address: Granta Park, Great Abington city: CAMBRIDGE postcode: CB21 6AL contact info Titolo: Ms. Nome: Debbie Cognome: Mcconnell Email: send email Telefono: +44 1223899256
Nazionalità Coordinatore	United Kingdom [UK]
Totale costo	1˙412˙376 €
EC contributo	1˙084˙000 €
Programma	FP7-SME Specific Programme "Capacities": Research for the benefit of SMEs
Code Call	FP7-SME-2012
Funding Scheme	BSG-SME
Anno di inizio	2013
Periodo (anno-mese-giorno)	2013-01-01   -   2015-04-30

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	TWI LIMITED  Organization address address: Granta Park, Great Abington city: CAMBRIDGE postcode: CB21 6AL contact info Titolo: Ms. Nome: Debbie Cognome: Mcconnell Email: send email Telefono: +44 1223899256	UK (CAMBRIDGE)	coordinator	84˙223.00
2	INNOSPEXION APS  Organization address address: Horseager 14 city: HVALSO postcode: 4330 contact info Titolo: Dr. Nome: Joergen Cognome: Rheinlaender Email: send email Telefono: +45 4640 9070 Fax: +45 4640 9044	DK (HVALSO)	participant	302˙281.00
3	OY AJAT LTD  Organization address address: Tietotie 3 city: ESPOO postcode: 2150 contact info Titolo: Mr. Nome: Klaus Cognome: Härkönen Email: send email Telefono: +358 400 243 929	FI (ESPOO)	participant	269˙481.00
4	PRODUCT TECHNOLOGY PARTNERS  Organization address address: COWLEY ROAD WILLIAM JAMES HOUSE city: CAMBRIDGE postcode: CB4 0WX contact info Titolo: Mrs. Nome: Rachel Cognome: Wood Email: send email Telefono: +44 1223 264445 Fax: +44 1223 263273	UK (CAMBRIDGE)	participant	158˙277.00
5	NEXUS ENGINEERING OOD  Organization address address: "Ul. Riben Bukwar, Bldg. 12, Wh.9," city: SOFIA postcode: 1330 contact info Titolo: Mr. Nome: Svetoslav Cognome: Kulzarov Email: send email Telefono: +359 878 180 778 Fax: +359 297 18374	BG (SOFIA)	participant	150˙521.00
6	BUNDESANSTALT FUER MATERIALFORSCHUNG UND -PRUEFUNG  Organization address address: Unter den Eichen 87 city: BERLIN postcode: 12205 contact info Titolo: Mrs. Nome: Eva-Maria Cognome: Mueller Email: send email Telefono: +49 30 8104 2257 Fax: +49 30 8104 2207	DE (BERLIN)	participant	64˙200.00
7	AREVA NP GMBH  Organization address address: Paul-Gossen-Str. 100 city: ERLANGEN postcode: 91052 contact info Titolo: Mr. Nome: Christian Cognome: Weisse Email: send email Telefono: +49 9131 900 92181 Fax: +49 9131 900 94010	DE (ERLANGEN)	participant	55˙017.00

Mappa

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 Obiettivo del progetto (Objective)

'Austenitic stainless steel is often used in the construction of critical pipework in nuclear power plant and petrochemical plant due to its resistance to corrosion and its high fracture resistance. Pipelines are usually constructed by joining sections of pipe together, using welding. These welds can host many types of defects that may go undetected if not inspected and in-service and under stress these defects can grow and lead to mechanical failure through mechanisms such as fatigue.

Currently inspecting austenitic welds using ultrasonic techniques is difficult due to the materials inhomogeneity and anisotropy that causes the beam to scatter at grain boundaries. Conventional Film Radiography is the current technique used for inspecting these materials as the grain structure does not significantly affect the radiographic results. Film radiography is limited due to its long exposure times and the information available from the inspection results because the output provides a 2D image of a 3D object. This causes the superimposition of internal features (reducing the contrast sensitivity) and the inability to position the depth of defects in the direction of the X-ray beam.

The TomoWELD project proposes to develop a robust mobile X-ray tomographic system for the accurate inspection of austenitic steel welds at the sensitivity levels required in the nuclear industry. The application of X-ray Computed Tomography will overcome the limitations of current inspection techniques by providing 3D information of the internal structure allowing detailed cross sectional analysis and dimensional measurements to be obtained.

The design and manufacture of this system requires further development of existing X-ray tomography techniques and algorithms, hardware (mobile X-ray source and digital detector arrays) and robust field manipulators for easy onsite operation.'