Modelling of Steel Welds
H. K. D. H. Bhadeshia
University of Cambridge


Abstract

Physical models for the development of microstructure have the potential of revealing new phenomena and properties. They can also help identify the controlling variables. The ability to estimate quantitatively the weld metal microstructure relies on a thorough understanding of the phase transformation theory governing the changes that occur as the weld solidifies and cools to ambient temperature. Considerable progress has been made with the help of thermodynamic and kinetic theory, which accounts for the variety of alloying additions, non-equilibrium cooling conditions, and other variables necessary to specify fully the welded component. These aspects are illustrated with the aim of presenting a brief account of the methodology and of those problems which have yet to be solved.

Materials Science and Technology, Vol. 8, 1992, pp. 123-133.

Some of the computer programs associated with this paper can be obtained from the Materials Algorithms Project





JNL

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

MMWP1

Mathematical Modelling of Weld Phenomena

Eds. H. Cerjak and K. E. Eastering
Institute of Materials, London, 1993

MMWP2

Mathematical Modelling of Weld Phenomena 2

Edited by H. Cerjak
Series Editor H.K.D.H. Bhadeshia
Institute of Materials, London, 1995

MMWP3

Mathematical Modelling of Weld Phenomena 3

Edited by H. Cerjack
Series Editor H.K.D.H. Bhadeshia
Institute of Materials, London, 1997

mmpw4

Mathematical Modelling of Weld Phenomena 4

Edited by H. Cerjack
Series Editor H.K.D.H. Bhadeshia
Institute of Materials, London, 1998