Photomicrograph Database

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Artifact ID BT 0623/1439
Negative Number NS205
Magnification 100x
Etchant AH/HP, FeCl3
Photo Date 6/20/2000


Alloy

bronze or copper

Structure

Post-casting treatment possible.

Metallographic Description

Heavily corroded dendrites, with a clear fringe around the arms. Annealing or mechanical twins and grain boundaries are visible in a few of the dendritic islands.


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