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Bainite
is a two phase material composed of ferrite and cementite. It is an equilibrium
structure in a carbon steel that has been isothermally transformed from
the high temperature austenite phase at a temperature below the nose of
the T-T-T curve. The photograph shows a Bainite produced by isothermal
transformation of a Fe - 0.8 wt% C austenite at 316 C. The morphology of
the Fe3C can be either
needles or plates depending on the transformation temperature. The microstructure
of the material is fine scale and needs an SEM photograph to be resolved. |
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