Photomicrograph Database

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Artifact ID BT 0533/1175
Negative Number 1293
Magnification 100x
Etchant AH/HP
Photo Date 3/20/1991


Alloy

bronze or copper

Structure

As-cast.

Metallographic Description

The macrostructure suggests a nodule of slag with prills, but a pseudomorphic dendritic structure in the corrosion implies that the whole piece was once metal. The islands of remaining metal are heavily corroded cored dendrites. There are large gas porosity voids.


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