Photomicrograph Database

Artifact ID BT 0889/1694
Negative Number NS210
Magnification 200x
Etchant AH/HP, FeCl3
Photo Date 6/26/2000




Post-casting treatment

Metallographic Description

This hook-shaped fragment of wire is heavily corroded. The structure is one of fine grains with numerous twins. Intergranular cracking extending from the surface is common. The numerous blue-gray inclusions are all flattened along the length of the specimen, showing fairly extensive working. A few annealing twins are bent. Working, annealing; cycle may have been repeated several times.

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