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Which risk increases greatly when austenitic stainless steel corrodes in moist hydrogen sulfide?

A)Erosion efficiency dramatically decreases overall
B)Oxidation weakens oxide layer formation
C)Hydrogen embrittlement markedly reduces ductility
D)Decreased heat transfer hinders heat exchange

💡 Explanation

Hydrogen sulfide causes corrosion, releasing atomic hydrogen that diffuses into the steel; therefore hydrogen embrittlement occurs, because the hydrogen collects at grain boundaries and precipitates rather than reacting like general oxidation might with oxide layer increase.

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