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← ScienceWhich consequence results when excessive tensile stress weakens metallic bonds in a bridge cable?
A)Increased electron delocalization occurs
B)Creep deformation rate accelerates✓
C)Dislocation density decreases
D)Passivation layer forms rapidly
💡 Explanation
When weakened metallic bonds experience tensile stress within bridge cables, creep deformation rate accelerates as atoms slide past each other due to increased vacancy formation, rather than increased electron delocalization. Therefore, the bridge cable weakens because elevated vacancy concentrations facilitate creep.
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