Modelling Creep Rupture Strength of Ferritic Steel Welds

D. Cole, C. Martin-Moran, A.G. Sheard, H. K. D. H. Bhadeshia and D. J. C. MacKay

Abstract

Recent changes in the design of steam turbine power plant have necessitated the replacement of bolted flanges with welded joints. The design process therefore requires a knowledge of the creep rupture strength of the weld metal consumed in the welding process. This study presents a method which can be used to estimate the creep rupture strength of ferritic steel weld metals, from a knowledge of the creep strength of wrought plates. The method is validated using published data. The software associated with the calculations is freely available on the world-wide-web.

Science and Technology of Welding and Joining, Vol. 5, 2000, 81-90.

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	Science and Technology of Welding and Joining A journal founded and edited by S. A. David, T. Debroy and H.K.D.H. Bhadeshia Published by The Institute of Materials, London, since 1996
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	Mathematical Modelling of Weld Phenomena 2 Edited by H. Cerjak Series Editor H.K.D.H. Bhadeshia Institute of Materials, London, 1995
	Mathematical Modelling of Weld Phenomena 3 Edited by H. Cerjack Series Editor H.K.D.H. Bhadeshia Institute of Materials, London, 1997
	Mathematical Modelling of Weld Phenomena 4 Edited by H. Cerjack Series Editor H.K.D.H. Bhadeshia Institute of Materials, London, 1998