Acta Metall Sin  1998, Vol. 34 Issue (9): 959-965    DOI:

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EFFECT OF POTENTIAL PERTURBATION POLARIZATION ON THE STRESS CORROSION CRACKING OF 1Cr18Ni9Ti STAINLESS STEEL

NIU Lin; CAO Chunan; LIN Haichao (State Key Laboratary for Corrosion and Protection; Institute of Corrosion and Protection of Metals; The Chinese Academy of Sciences; Shenyang 110015)Correspondent: NIU Lin; Tel: (024)23915893; Fax: (094)23894149; E-mail: lin.h.c@icpm.syb.ac.cn

NIU Lin; CAO Chunan; LIN Haichao (State Key Laboratary for Corrosion and Protection; Institute of Corrosion and Protection of Metals; The Chinese Academy of Sciences; Shenyang 110015)Correspondent: NIU Lin; Tel: (024)23915893; Fax: (094)23894149; E-mail: lin.h.c@icpm.syb.ac.cn. EFFECT OF POTENTIAL PERTURBATION POLARIZATION ON THE STRESS CORROSION CRACKING OF 1Cr18Ni9Ti STAINLESS STEEL. Acta Metall Sin, 1998, 34(9): 959-965.

Abstract References Related Articles Recommended Metrics Download:  PDF(1601KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The SCC susceptibility of 1Cr18Ni9Ti austenitic stainless steel in 0.75mol·L-1HCl +0.25mol·L-1NaCl solution has been studied by slow strain rate tests(SSRT) and SEM. During the slow rate tensile process, the specimen was polarized with different potential perturbation modes such as potentiostatic, cyclic potential scan and cyclic potential step methods. The results indicated that potential scan rate and step frequency played an essential role in the initiation and propagation of crack. Potential step at high frequency led to much higher cracking susceptibility than potential scan within the same potential ranges. Key words:  1Cr18Ni9Ti stainless steel      stress corrosion cracking      potential perturbation      polarization      Received:  18 September 1998      Service E-mail this article Add to citation manager E-mail Alert RSS Collect articles（0） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1998/V34/I9/959 1 Hoar T P, Hines J G Corrosion, 1963; 19: 331t 2 Hehemann R F. Metall Trans A, 1985; 16A: 1909 3 Haruyama S, Asawa S. Corros Sci, 1973;13:395 4 Tanno K, Yashiro H, Kawamura Y, Umegai K, Kumagai N. Corrosion, 1993; 49: 319 5 Maier I, Galvele J R. Corrosion, 1980; 36: 309 6 Congleton J, Yang W Corros Sci, 1995; 37: 429 7 Manfredi C, Maier I A, Galvele J R. CorrosSci, 1987; 27: 887 8 Parkins R N. Corros Sci, 1980; 20: 147 9 Magniu T, Chieragatti R, Oltra R. Acta Metall Mater, 1990; 38: 1313 10 KanfmanM J, Fink J K. 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