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← ScienceWhich outcome occurs when rapid quenching traps a metallic alloy in a highly disordered molecular configuration?
A)Increased susceptibility to hydrogen embrittlement✓
B)Enhanced resistance to thermal expansion
C)Improved electrical conductivity at temperature
D)Decreased yield strength under high stress
💡 Explanation
Increased susceptibility happens because rapid quenching freezes the alloy's atoms in non-equilibrium positions, thereby increasing grain boundary density via the mechanism of molecular disorder. Therefore, hydrogen embrittlement risk rises, rather than alternatives like thermal or electrical enhancements expected in standard alloy microstructures.
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