Photomicrograph Database

Artifact ID BC 0719/1589
Negative Number 1686
Magnification 100x
Etchant AH/HP
Photo Date 6/28/1994

Alloy

bronze or copper

Structure

As-cast.

Metallographic Description

One end of the sample is dendritic, with interdendritic corrosion. The other end has a structure of large grains with large twins, probably mechanical and not the result of working. The color suggests the presence of tin. At higher magnification, subgrains can be seen with the larger grains.


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