Photomicrograph Database

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Artifact ID DK 0120/0310
Negative Number NS218
Magnification 200x
Etchant AH/HP, FeCl3
Photo Date 6/30/2000


Alloy

high-tin bronze

Structure

Hot-worked and quenched.

Metallographic Description

This is a high tin beta-martensite bronze. Needles can be seen only on the edges. The alpha, which is in some places is twinned, is aligned longitudinally. At high magnification grain boundaries can be seen in the dark gamma matrix.


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