Photomicrograph Database

Artifact ID BC 0603/0471
Negative Number NS102
Magnification 100x
Etchant FeCl3
Photo Date 2/14/2000


bronze or copper


post-casting treatment possible

Metallographic Description

Cast and annealed or slow cooled, with small equiaxed grains showing no sign of working. Alternately, this was chill cast and the cut happened to be through columnar dendrites. Intergranular corrosion on the edges. Some large round gas pores. Many blue-gray non-metallic inclusions.

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