1. Prediction of Microstructure in HAZ of Welds.
- Author
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Khurana, S. P., Yancey, R., Jung, G., Ghosh, S., Castro, J.C., and Lee, J.K.
- Subjects
MICROSTRUCTURE ,STEEL ,FERRITES ,BAINITE ,AUSTENITE ,FINITE element method ,PHYSICS - Abstract
A modeling technique for predicting microstructure in the heat-affected zone (HAZ) of the hypoeutectoid steels is presented. This technique aims at predicting the phase fractions of ferrite, pearlite, bainite and martensite present in the HAZ after the cool down of a weld. The austenite formation kinetics and austenite decomposition kinetics are calculated using the transient temperature profile. The thermal profile in the weld and the HAZ is calculated by finite-element analysis (FEA). Two kinds of austenite decomposition models are included. The final phase fractions are predicted with the help of a continuous cooling transformation (CCT) diagram of the material. In the calculation of phase fractions either the experimental CCT diagram or the mathematically calculated CCT diagram can be used. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR]
- Published
- 2004
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