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I. Applied electrochemistry
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I:3 Pickling of steel
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To remove surface oxides from stainless steel, the steel is
conventionally passed through a very aggressive and environmentally
undesirable electrolyte, usually a concentrated mixture of HNO3, HF and
water. Electrolytic pickling is a more advanced process where the
electrolyte is a benign sodium sulfate electrolyte, and the scale
removal in this process is caused by currents induced in the treated
steel by an imposed electric potential. Modeling of the entire process,
including the electrical fields, fluid dynamics, bubble evolution and
motion, and the scale removal reactions, and the numerical solution of
the model, as well as basic experiments, are being conducted. The
objectives are better fundamental understanding, and increased line
speed and energy efficiency.
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Supervisors: Noam Lior, Michael Vynnycky |
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FaxénLaboratoriet (FLA) |
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