Estimation of mechanical properties of ferritic steel welds. Part 2: Elongation and Charpy toughness

Abstract Previous work presented models which can be used to estimate the yield and ultimate tensile strengths of ferritic steel welds. The present paper deals with properties that are much more difficult to predict: the elongation and Charpy impact toughness. While the models are found to be useful and emulate expectations from current physical metallurgy principles, it is clear that much more systematic experimental data are needed before the predictability becomes as good as the strength models of Part 1.

[1]  W. H. Erickson Physical Metallurgy Research Laboratories Fortieth Anniversary , 1983 .

[2]  R. Klueh,et al.  Development of low-chromium, chromium-tungsten steels for fusion , 1995 .

[3]  Djc MacKay,et al.  Neural network analysis of steel plate processing , 1998 .

[4]  D. Mackay,et al.  Impact toughness of C-Mn steel arc welds : Bayesian neural network analysis , 1995 .

[5]  H. Bhadeshia,et al.  The estimation of non-uniform elongation in low-alloy steel weld deposits , 1990 .

[6]  R. Klueh The effect of carbon on 2.25 Cr-1 Mo steel: (I). Microstructure and tensile properties☆ , 1974 .

[7]  V. Raiter,et al.  Influence of Molybdenum on the Microstructure and Properties of Weld Metal with Different Manganese Contents , 1989 .

[8]  Ronald L. Klueh,et al.  Microstructure-mechanical properties correlation of irradiated conventional and reduced-activation martensitic steels , 1995 .

[9]  R. Klueh,et al.  Effect of vanadium and titanium on mechanical properties of chromium-tungsten steels , 1994 .

[10]  J. D. Embury,et al.  A model of ductile fracture based on the nucleation and growth of voids , 1981 .

[11]  W. C. Leslie,et al.  The physical metallurgy of steels , 1981 .

[12]  A. Batte,et al.  Reheat cracking in 2·25Cr–Mo weld metal: influence of residual elements and microstructure , 1979 .

[13]  H. Bhadeshia,et al.  A model for the strength of the As-deposited regions of steel weld metals , 1988 .

[14]  A. O. Kluken,et al.  Mechanisms of inclusion formation in Al−Ti−Si−Mn deoxidized steel weld metals , 1989 .

[15]  David J. C. MacKay,et al.  A Practical Bayesian Framework for Backpropagation Networks , 1992, Neural Computation.

[16]  A. T. Price MATHEMATICAL MODELLING OF WELD PHENOMENA , 1993 .

[17]  I. Hrivňák,et al.  Effect of carbon content on the characteristics of as-welded and step-cooled AWS E-8018B2 type weld metal , 1991 .

[18]  Sir Alan Cottrell Fifty years on the shelf , 1995 .