Artifact ID DK 0126/0320
Negative Number NS259
Etchant ferric nitrate
Photo Date 8/2/2000
StructureHot-worked and quenched.
Metallographic DescriptionA high-tin beta martensitic structure. The alpha grains line up in the same direction; some alpha is twinned. The needles are very dense, so dense that the dark matrix is almost invisible. Nonetheless, grain boundaries are clear.
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