Electrochemical Properties and Corrosion Protection of Stainless Steel for Hot Water Tank

Seong-Jong Kim; Seok-Ki Jang; Jeong-Il Kim

Korean Journal of Chemical Engineering, Vol.21, No.3, 739-745, May, 2004

DOI10.1007/BF02705514 Export Citation

Electrochemical Properties and Corrosion Protection of Stainless Steel for Hot Water Tank

Seong-Jong Kim^†, Seok-Ki Jang, and Jeong-Il Kim

Division of Marine Engineering, Mokpo Maritime University, 571 Chukkyo-dong, Mokpo, Cheonnam 530-729, Korea

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The state in which a stainless steel (STS) exhibits a very low corrosion rate is known as passivity, which is self-healing in a wide variety of environments. However, for those STS the corrosion includes pitting, crevice corrosion, galvanic corrosion, hydrogen embrittlement and stress corrosion cracking etc. And the corrosion resistance of STS is affected by area ratio, solution temperature and solution condition etc. Corrosion characteristics of STS 304, welding parts STS 316, STS 329 and STS 444 were investigated with parameters such as corrosion potential, galvanic current measurements, cathodic and anodic polarization behaviors as a function of area ratio and solution temperature in solution for hot water tank. It was found that galvanic current is affected by the area ratio, temperature and a kind of STS for hot water tank. Corrosion potential of welding part STS 316 was lower than that of STS 304, STS 329, STS 444 in solution for #1, #2 hot water tank. Therefore, it is suggested that the welding part STS 316 acts as anode for the other STSs. The amplitude of galvanic current between welding parts STS 316 and STS 304, STS 329, STS 444 in #1 solution is smaller than that in #2 solution. This is the reason that chloride ion quantity in #2 solution is more than that for #1 solution. And then welding part STS 316 corrodes easily by acting as anode compared to the other STS.

Keywords:Electrochemical Property;Passivity;Hydrogen Embrittlement;Corrosion Characteristics;Polarization Behaviors

[References]

Akira T, Kazutoshi S, J. Jpn. Inst. Metals, 33, 219 (1969)
Bellucci F, Corrosion, 47, 808 (1991)
Fontana MG, Greene ND, "Corrosion Engineering," 242, McGraw-Hill, 2nd ed., New York (1996)
Fontana MG, Greene ND, "Corrosion Engineering," 39, McGraw-Hill, 2nd ed., New York (1978)
France R, Byrne G, Warburton GR, An Official NACE International Publication, 46 (1999)
Francis R, Br. Corrosion J., 29, 53 (1994)
Galofalo F, Chou YT, Ambeguokar V, Acta Mater., 8, 504 (1960)
Guidelines for Selection of Ni Stainless Steel for Marine Environment, Natural Water and Brines, Nickel Development Institute Reference Book, 11, 003 (1987)
Nickel Development Institute, Toronto, 4 (1989)
Jones DA, "Principles and Prevention of CORROSION," 290, Macmillan Publishing Company (1992)
Kazinczy F, J. Iron Steel Inst., 177, 85 (1954)
Kim SJ, Moon KM, Metals Mater. Int., 8(4), 387 (2002)
Kim SJ, Moon KM, Metals Mater. Int., 8(4), 395 (2002)
Kim SJ, Okido M, Moon KM, Surf. Coat. Technol., 169-170, 163 (2003)
Kim SJ, Okido M, Moon KM, Korean J. Chem. Eng., 20(3), 560 (2003)
Laque FL, "Marine Corrosion; Causes and Prevention," Wiley, New York, 179 (1975)
Lauer G, Mansfeld F, Corrosion, 26, 504 (1970)
Lu HH, Duquette DJ, Corrosion, 46, 994 (1990)
Mansfeld F, Kenkel JV, Corrosion, 33, 376 (1977)
Mansfeld F, Corrosion, 33, 224 (1977)
Mansfield F, Corrosion, 29, 403 (1973)
Mansfield F, Corrosion, 29, 56 (1973)
Mansfield F, Hengstenberg DH, Kenkel JV, Corrosion, 30, 343 (1974)
Moon KM, Lee MH, Kim KJ, Kim SJ, Surf. Coat. Technol., 169-170, 675 (2003)
Nishiyi O, Corrosion Control, 7, 13 (1964)
Pryor MJ, Corrosion LL, Shreir, ed., Vol. 1, Newnes-Butterworths, London, pp. 1.192, 1.216 (1976)
John SA, "Corrosion of Stainless Steel," Wiley Interscience, 344 (1996)
John SA, "Corrosion of Stainless Steel," Wiley Interscience, 87 (1996)
Shone EB, Malpas RE, Gallagher P, Trans. Inst. Marine Eng., 100, 193 (1988)
Wakahiro H, Mitsuaki N, Toshiro A, Toshiro N, Nisshin Seikougihou, 77 (1998)
Wallen B, Anderson T, Proceedings of the 10th Scandinavian Corrosion Congress, Stockholm (1986)
Weisstuch A, Scheel GE, Mater. Performance, 11, 23 (1972)
Yamamoto A, Ashiura T, Kamisaka E, Boshoku Gijutsu, 35, 448 (1986)

[1] Akira T, Kazutoshi S, J. Jpn. Inst. Metals, 33, 219 (1969)

[2] Bellucci F, Corrosion, 47, 808 (1991)

[3] Fontana MG, Greene ND, "Corrosion Engineering," 242, McGraw-Hill, 2nd ed., New York (1996)

[4] Fontana MG, Greene ND, "Corrosion Engineering," 39, McGraw-Hill, 2nd ed., New York (1978)

[5] France R, Byrne G, Warburton GR, An Official NACE International Publication, 46 (1999)

[6] Francis R, Br. Corrosion J., 29, 53 (1994)

[7] Galofalo F, Chou YT, Ambeguokar V, Acta Mater., 8, 504 (1960)

[8] Guidelines for Selection of Ni Stainless Steel for Marine Environment, Natural Water and Brines, Nickel Development Institute Reference Book, 11, 003 (1987)

[9] Nickel Development Institute, Toronto, 4 (1989)

[10] Jones DA, "Principles and Prevention of CORROSION," 290, Macmillan Publishing Company (1992)

[11] Kazinczy F, J. Iron Steel Inst., 177, 85 (1954)

[12] Kim SJ, Moon KM, Metals Mater. Int., 8(4), 387 (2002)

[13] Kim SJ, Moon KM, Metals Mater. Int., 8(4), 395 (2002)

[14] Kim SJ, Okido M, Moon KM, Surf. Coat. Technol., 169-170, 163 (2003)

[15] Kim SJ, Okido M, Moon KM, Korean J. Chem. Eng., 20(3), 560 (2003)

[16] Laque FL, "Marine Corrosion; Causes and Prevention," Wiley, New York, 179 (1975)

[17] Lauer G, Mansfeld F, Corrosion, 26, 504 (1970)

[18] Lu HH, Duquette DJ, Corrosion, 46, 994 (1990)

[19] Mansfeld F, Kenkel JV, Corrosion, 33, 376 (1977)

[20] Mansfeld F, Corrosion, 33, 224 (1977)

[21] Mansfield F, Corrosion, 29, 403 (1973)

[22] Mansfield F, Corrosion, 29, 56 (1973)

[23] Mansfield F, Hengstenberg DH, Kenkel JV, Corrosion, 30, 343 (1974)

[24] Moon KM, Lee MH, Kim KJ, Kim SJ, Surf. Coat. Technol., 169-170, 675 (2003)

[25] Nishiyi O, Corrosion Control, 7, 13 (1964)

[26] Pryor MJ, Corrosion LL, Shreir, ed., Vol. 1, Newnes-Butterworths, London, pp. 1.192, 1.216 (1976)

[27] John SA, "Corrosion of Stainless Steel," Wiley Interscience, 344 (1996)

[28] John SA, "Corrosion of Stainless Steel," Wiley Interscience, 87 (1996)

[29] Shone EB, Malpas RE, Gallagher P, Trans. Inst. Marine Eng., 100, 193 (1988)

[30] Wakahiro H, Mitsuaki N, Toshiro A, Toshiro N, Nisshin Seikougihou, 77 (1998)

[31] Wallen B, Anderson T, Proceedings of the 10th Scandinavian Corrosion Congress, Stockholm (1986)

[32] Weisstuch A, Scheel GE, Mater. Performance, 11, 23 (1972)

[33] Yamamoto A, Ashiura T, Kamisaka E, Boshoku Gijutsu, 35, 448 (1986)