Sudarsanam Suresh Babu

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Steel Processing and Microstructure Evolution

• Sudarsanam Suresh Babu
• Metals and Ceramics Division
• Oak Ridge National LaboratoryOak Ridge, TN
  37831-6096
• Departmental Lecture Course

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Although, the information presented here deals
with steel welds, the principles and results can
be extended to generic steel microstructure
evolution.
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Overview of microstructure evolution in steel
welds is controlled by variety of phase
transformations.

• The ability to describe all the events allows one
  to design a steel with required microstructure.
• The aim of this course will be to highlight
  various aspects of inclusion formation,
  solidification, and subsequent solid state
  transformation kinetics.
• We will use ThermoCalc and DicTra programs
  extensively in tutorials and exercises.

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Outline of the course

• Introduction to thermodynamic and kinetic
  calculations
• Inclusion formation
• Weld Solidification
• Solid state Transformations

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Summary

• Inclusion formation was described.
• Weld Solidification was described.
• Solid State Transformations in welds was
  described.
• Application of these models to other steels and
  other welding conditions can be routinely done,
  with new computational tools Visit
  http//mjndeweb.ms.ornl.gov/Babu to see recent
  computational tools.