Photomicrograph Database

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Artifact ID BC 0987A/1005
Negative Number NS269
Magnification 100x
Etchant AH/HP, FeCl3, K2Cr2O7
Photo Date 8/4/2000


Alloy

impure copper

Structure

As-cast.

Metallographic Description

Cast. Long, thin, columnar grains with numerous shrinkage voids. Subgrain boundaries can be seen within the grains.The granular structure results from the low impurity content.


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