Photomicrograph Database

First Previous of 220 records Next Last
Artifact ID BCES 2020B/1982
Negative Number NS294
Magnification 100x
Etchant FeCl3, K2Cr2O7
Photo Date 7/3/2001


Alloy

impure copper

Structure

As-cast.

Metallographic Description

Cast. Small irregular grains, some columnar, outlined by bead-like precipitates. Granular structure reflects the low tin content. Another prill in this crucible was high-tin bronze.




For more information: View Artifact Data