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← ScienceWhich risk significantly increases when compressed hydrogen permeates certain metal pipelines?
A)Hydrogen embrittlement reduces fracture toughness✓
B)Increased thermal expansion causes buckling
C)Creep deformation exceeds design tolerances
D)Galvanic corrosion accelerates metal wastage
💡 Explanation
Hydrogen embrittlement occurs when hydrogen atoms diffuse into the metal lattice, reducing its ductility and leading to brittle fracture because the metal is more susceptible to crack propagation; therefore, embrittlement is the primary risk, rather than corrosion or creep, which occur over longer timescales.
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