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Failure analysis was carried out on a control valve in the steam system of a specialty chemical plant. Comprehensive analyses were conducted to investigate the operating conditions, base materials, macroscopic, and microscopic morphologies of the failed steam control valve and a computational fluid dynamic model was also adopted. The results showed that the synergistic effect of electrochemical corrosion...
Elbow is widely considered as a vulnerable part in the whole steam pipelines due to the special geometry and complex flow property. In this study, unexpected leakages took place on two elbows utilized in the same steam system of a specialty chemical plant. However, these two failed elbows exhibited completely different morphologies, which indicated that they might have undergone different failure...
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