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Validation, expansion and standardisation of procedures for high temperature defect assessment

Objective



Objectives and content

Accurate component life prediction is crucial to the safe, reliable and economic performance of all types of high temperature plant. It is particularly difficult when components are found to contain crack-like surface or embedded defects, since for these situations there are no well-established International or European Standards. Some guidelines or methodologies do exist within Germany, France and the UK but difficulties with them are the lack of commonality and very limited validation thus significantly limiting their application.

This proposal is aimed at addressing the above issues. The work will involve:
- validating and expanding the database of the existing high temperature defect assessment procedures by conducting tests on component type geometries and 'scoping' tests on standard laboratory type specimens, together with data from plant experience

- developing new methodologies for predicting the behaviour of high temperature components operating under steady and/or cyclic load conditions with a view to refining the present procedures

- unifying and refining existing procedures with a view to making recommendations for a Euro-Standard

- developing a knowledge-Based System for HIDA demonstration and applicability, and

- providing a Database for materials used in high temperature applications for fossil and nuclear power plant and for process and petrochemical plant. The materials include the pressure vessel piping materials 2.25Cr1Mo (550øC), AISI 316 Stainless Steel (550øC), and ASTM Grade 91 (600øC), a 1CrMoV forged rotor material (530øC) and a cast 1CrMoV casing material (530øC).

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

ERA Technology Ltd.
Address
Cleeve Road
KT22 7SA Leatherhead
United Kingdom

Participants (12)

COMMISSARIAT A L'ENERGIE ATOMIQUE
France
Address
Centre D'etudes De Saclay
91191 Gif Sur Yvette
ELECTRICITE DE FRANCE SERVICE NATIONAL*
France
Address
Site Des Renardifres
77818 Moret Sur Loing
Ente Nazionale per l'Energia Elettrica SpA (ENEL)
Italy
Address
Via Nino Bixio 39
29100 Piacenza
FRAMATOME ANP
France
Address
Rue Juliette De Recamier 10
69456 Lyon
IMPERIAL COLLEGE OF SCIENCE, TECHNOLOGY AND MEDICINE
United Kingdom
Address
Exhibition Road
SW7 2BX London
INSTITUTET FR METALLFORSKNING AB
Sweden
Address
48,Drottning Kristinas Vsg 48
114 28 Stockholm
INSTITUTO DE SOLDADURA E QUALIDADE ASSOCIACAO*
Portugal
Address
Km 3,Avenida Do Professor Doutorcavaco Silva 33Parque D
2740-120 Porto Salvo
METSEARCH B.V.
Netherlands
Address
11,Reelaan 11
7522 LR Enschede
Petrogal - Petroleos de Portugal SA
Portugal
Address
Leça Da Palmeira
4456 Matosinhos
SAQ Kontroll AB
Sweden
Address

100 29 Stockholm
Siempelkamp Prüf- und Gutachter-Gesellschaft mBH
Germany
Address
Struppener Strasse
1787 Pirna
Staatliche Materialprüfungsanstalt
Germany
Address
32,Pfaffenwaldring
70569 Stuttgart