Abstract
The effects of polarization potentials and of stress levels on the environmental cracking of eutectoid steel wire in bainitic, sorbitic and cold drawn conditions in sulphate, nitrate, sulphide and chloride environments have been studied. Failure mechanisms involve both hydrogen embrittlement and anodic solution mechanisms, depending particularly on the polarization applied. Potential, stress and temperature are complementary in their effects and under combinations of these likely to be encountered in service the steel, especially in high strength conditions, is liable to fail by cracking in a wide range of chemical environments.
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