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← ScienceWhich consequence results when a corrosive environment penetrates steel rebar?
A)Passivation layer is disrupted✓
B)Annealing process induces grain growth
C)Ferrite formation promotes ductility
D)Martensite transformation increases brittleness
💡 Explanation
The disruption of the passivation layer (caused by ionic chlorides corroding the steel) causes oxidation rather than protection, because iron ions bond with oxygen to form rust, therefore reducing the structural integrity of the rebar; rather than strengthening it.
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