Weld strength for high temperature components design and operation

Objective

The present design rules for high temperature plant are based on the creep rupture strength of the base material. Frequently failure of components in service occurs at the welds, often in times shorter than anticipated by the design rules. To improve the operational performance of new and existing plant there are clear technical needs to incorporating the effect of welds in the design and to account for this effect in life and failure assessment procedures. This project will make a study of the design and performance requirements of welds, bringing together comprehensive reviews of weld performance in service, research experience of weld properties and a validation test programme on different types of ferritic, martensitic and dissimilar metal welds, typical of those used in high temperature plants. The test programme has been designed to provide the required stress rupture and creep deformation design data on standard laboratory specimens for correlation with data from multi axial feature tests. A continuum damage mechanics approach using FE will be used to analyse the welds.

Programme(s)

• FP5-GROWTH - Programme for research technological development and demonstration on "Competitive and sustainable growth 1998-2002"

Topic(s)

• 1.1.3.-5. - RTD Activities of a Generic Nature : materials and their technologies for production and transformation and new and improved materials and production technologies in the steel field

Call for proposal

Data not available

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

INSTITUTO DE SOLDADURA E QUALIDADE ASSOCIACAO*

Address

Km 3,avenida Do Professor Doutorcavaco Silva 33parque D
2740-120 Porto Salvo
Portugal

Participants (6)

CESI CENTRO ELETTROTECNICO SPERIMENTALE ITALIANO GIACINTO MOTTA SPA

Italy

Address

Via Rubattino 54
Milano

EQUIPOS NUCLEARES SA

Spain

Address

Avenida Juan Carlos I 8
39600 Maliano

INTEGRIDADE, SERVICOS DE MANUTENCAO E INTEGRIDADE ESTRUTURAL LDA.

Portugal

Address

Rua Francisco Antonio Silva
2780 Oeiras

METSEARCH B.V.

Netherlands

Address

11,reelaan 11
7522 LR Enschede

SIEMPELKAMP PRUEF- UND GUTACHTER-GESELLSCHAFT MBH

Germany

Address

Am Lagerplatz 6a
01072 Dresden

UNIVERSITY OF NOTTINGHAM

United Kingdom

Address

University Park
NG7 2RD Nottingham