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Which outcome occurs when dissolved hydrogen affects steel pipe?

A)Embrittlement reduces fracture toughness sharply
B)Uniform oxidation increases material mass
C)Creep rate slows down significantly
D)Ductility increases to facilitate deformation

💡 Explanation

Hydrogen embrittlement occurs because hydrogen atoms diffuse into the steel’s grain boundaries, weakening the metallic bonds. This reduces fracture toughness, leading to sudden, brittle failures, rather than oxidation, creep reduction or ductility increases.

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