The kinetics of the transformation from ferrite to austenite have been modelled to form the basis of a theory for the formation of microstructure in steel welds.
Materials Science and Engineering A, Vol. 118A, 1989, pp. 155-170.
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This research paper examines the kinetics of reaustenitisation in high-strength steel weld deposits, focusing on how different initial microstructures transform back into austenite. By utilising dilatometry and transmission electron microscopy, the authors analyse the growth of austenite from starting mixtures of acicular ferrite or bainite.
The documentation outlines the following thermodynamic and experimental principles:
Ultimately, the paper provides a theoretical model to predict these microstructural changes, which is essential for designing more mechanically homogeneous and durable multirun welds.
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