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← ScienceWhich consequence results when hydrogen embrittlement degrades pipelines?
A)Increased risk of brittle fracture✓
B)Decreased methane production efficiency
C)Elevated corrosion resistance
D)Enhanced material plasticity
💡 Explanation
Hydrogen embrittlement causes brittle fracture because hydrogen atoms diffuse into and weaken the metal lattice, reducing its fracture toughness. Therefore, the risk of brittle fracture increases rather than improved corrosion resistance under safe operating pressure.
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