What is the theory of dendritic growth in pure metals and alloys during solidification?

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Michael Issigonis

Not too many people would profess to know the answer. However, the dendritic path looks like is following very small openings for the metal solutions to go through that overall would look like a tree with its branches.

Ricardo Sanson Namur

Professor Bhadeshia has a few lectures on this issue.

I suggest you to look over lectures 3-5 on this link:

http://www.phase-trans.msm.cam.ac.uk/abstracts/lectures.html