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← HistoryWhich outcome resulted when early crucible steel lacked 'deoxidation' during casting?
A)Bloomery iron became porous
B)Crucible steel was brittle✓
C)Cast-iron became laminar
D)Shear steel became fibrous
💡 Explanation
Crucible steel became brittle because dissolved oxygen reacts with carbon causing gas porosity, which weakens grain boundaries via GAS ADSORPTION. Therefore brittleness arose from this casting issue, rather than porosity in the bloomery stage by slag inclusions.
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