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← ScienceWhich outcome occurs when compressed hydrogen leaks into steel?
A)Hydrogen embrittlement induces crack propagation✓
B)Passivation layer prevents further corrosion
C)Ferrite formation increases tensile strength
D)Austenite stabilizes grain boundary sliding
💡 Explanation
When hydrogen diffuses into steel, it causes hydrogen embrittlement, a fracture mechanism. This weakens the steel’s grain boundaries enabling crack propagation; therefore, embrittlement happens rather than increased strength, because hydrogen atoms impede dislocation motion.
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