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Artifact ID BC 0613/582
Class amorphous
Material copper-base
Site Ban Chiang BC
Period Middle Period

Provenience Status/Description Metallography Elemental/Hardness
Alloy: bronze.
Where Cut: in half
How Mounted: cut side up
Structure: Post-casting treatment possible.
Metallographic description: Dendritic structure with much interdendritic corrosion. The remaining solid dendrites have largely recrystallized and acquired twins. Remnants of "Chinese script" alpha+delta eutectoid can be seen. The grains are surrounded by a fringe or film of paler color; this may be beta (see Scott:14). Inside the grains are numerous round or oval globules, probably Pb. Twinned redeposited copper has occupied some of the corrosion voids. The composition is complex. A seam or fold in the metal was produced probably at the time of manufacture.
BC 0613/582<br>irregular
BC 0613/582<br>irregular
BC 0613/582<br>irregular

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