Which outcome arises when a wrought iron chain experiences sustained tensile loading in a corrosive marine environment?

💡 Explanation

When wrought iron is subjected to sustained tensile loading in a corrosive environment, intergranular stress corrosion cracking occurs because the corrosion preferentially attacks grain boundaries weakened by stress, leading to crack propagation. Therefore, intergranular stress corrosion cracking results, rather than uniform oxidation, embrittlement, or increased ductility, which are results of different mechanisms/conditions.

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