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Download Corrosion and corrosion control : an introduction to by R Winston Revie; Herbert Henry Uhlig PDF

By R Winston Revie; Herbert Henry Uhlig

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REFERENCES 1. W. Tragert and W. D. Robertson, J. Electrochem. Soc. 102, 86 (1955). 2. C. S. Barrett and T. B. , 1980, p. 210. 19 PROBLEMS 3. N. Berry, Corrosion 2, 261 (1946). 4. H. H. Uhlig and O. Noss, Corrosion 6, 140 (1950). 5. V. B. , Cambridge, MA, 1950. 6. R. W. Revie and N. D. Greene, Corros. Sci. 9, 755 (1969). 7. Bopinder Phull, Evaluating intergranular corrosion, in ASM Handbook, Vol. 13A, Corrosion: Fundamentals, Testing, and Protection, ASM International, Materials Park, OH, 2003, p.

These cells are found in heat exchangers, boilers, immersion heaters, and similar equipment. In copper sulfate solution, the copper electrode at the higher temperature is the cathode, and the copper electrode at the lower temperature is the anode [3]. On short-circuiting the cell, copper deposits on the hot electrode and dissolves from the cold electrode. Lead acts similarly, but for silver the polarity is reversed. For iron immersed in dilute aerated sodium chloride solutions, the hot electrode is anodic to colder metal of the same composition; but after several hours, depending on aeration, stirring rate, and whether the two metals are short-circuited, the polarity may reverse [4, 5].

Latimer, The Oxidation States of the Elements and Their Potentials in Aqueous Solutions, 2nd edition, Prentice-Hall, Englewood Cliffs, NJ, 1952. 3. G. Milazzo and S. Caroli, Tables of Standard Electrode Potentials, Wiley, Chichester, 1978. 4. M. S. Antelman, The Encyclopedia of Chemical Electrode Potentials, Plenum Press, New York, 1982. 38 THERMODYNAMICS: CORROSION TENDENCY AND ELEC TRODE POTENTIALS 5. H. P. Hack, Evaluating galvanic corrosion, in ASM Handbook, Vol. 13A, Corrosion: Fundamentals, Testing, and Protection, ASM International, Materials Park, OH, 2003, p.

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