Abstract
The influence of hydrogen charged cathodically on the tensile behavior of pressure vessel steel SA508 Cl.3 has been investigated in the temperature range 200– 350 °C. It was found that the charged hydrogen induced a marked softening and a decrease in ductility at these temperatures, especially in the dynamic strain aging (DSA) region. Correspondingly, some flat or brittle-like areas appeared on the fracture surfaces locally and the dimples became smaller and shallower. Moreover, the presence of hydrogen moved the critical temperature at which DSA takes place to a higher temperature. The possible interactions between hydrogen and DSA at relatively high temperatures and the related mechanisms are also discussed according to the above experimental results.
References
[1] C.J. McMahon Jr, Eng. Fract. Mech. 68 (2001) 773.10.1016/S0013-7944(00)00124-7Search in Google Scholar
[2] G.P. Tiwari, A. Bose, J.K. Chakravartty, S.L. Wadekar, M.K. Totlani, R.N. Arya, R.K. Fotedar: Mater. Sci. Eng. A 286 (2000) 269.10.1016/S0921-5093(00)00793-0Search in Google Scholar
[3] H.K. Birnbaum, P. Sofronis: Mater. Sci. Eng. A 176 (1994) 191.10.1016/0921-5093(94)90975-XSearch in Google Scholar
[4] S.P. Lynch: Acta Metall. 36 (1988) 2639.10.1016/0001-6160(88)90113-7Search in Google Scholar
[5] J.P. Hirth: Metall. Trans. A 11 (1980) 861.10.1007/BF02654700Search in Google Scholar
[6] H. Takaku, H. Kayano: J. Nucl. Mater. 78 (1978) 299.10.1016/0022-3115(78)90451-8Search in Google Scholar
[7] W.Y. Chu, Y.B. Wang, L.J. Qiao: J. Nucl. Mater. 280 (2000) 250.10.1016/S0022-3115(00)00065-9Search in Google Scholar
[8] S.G. Lee, I.S. Kim: J. Press Vess. Technol. 123 (2001) 173.10.1115/1.1334378Search in Google Scholar
[9] Y. Katada, N. Nagata: Corros. Sci. 25 (1985) 693.10.1016/0010-938X(85)90006-XSearch in Google Scholar
[10] J.D. Atkinson, J. Yu: Fatigue Fract. Eng. Mater. Struct. 20 (1997) 1.10.1111/j.1460-2695.1997.tb00396.xSearch in Google Scholar
[11] S.G. Lee, I.S. Kim: J. Nucl. Sci. Technol. 38 (2001) 120.10.1080/18811248.2001.9715014Search in Google Scholar
[12] I.G. Park, A.W. Thompson: Metall. Trans. A 21 (1990) 465.10.1007/BF02782427Search in Google Scholar
[13] I.S. Kim, M.C. Chaturvedi: Mater. Sci. Eng. 37 (1979) 165.10.1016/0025-5416(79)90081-8Search in Google Scholar
[14] I.S. Kim, M.C. Chaturvedi: Trans. Japan Inst. Met. 28 (1987) 205.10.2320/matertrans1960.28.205Search in Google Scholar
[15] H.J. Maier, W. Popp, H. Kaesche: Mater. Sci. Eng. A 191 (1995) 17.10.1016/0921-5093(94)09623-5Search in Google Scholar
[16] L. Fournier, D. Delafosse, T. Magnin: Mater. Sci. Eng. A 269 (1999) 111.10.1016/S0921-5093(99)00167-7Search in Google Scholar
[17] M. Beghini, G. Benamati, L. Bertini, I. Ricapito, R. Valentini: J. Nucl. Mater. 288 (2001) 1.10.1016/S0022-3115(00)00716-9Search in Google Scholar
[18] O.N. Senkov, J.J. Jonas: Metall. Mater. Trans. A 27 (1996) 1877.10.1007/BF02651937Search in Google Scholar
[19] E.O. Hall, Yield Point Phenomena in Metals and Alloys, Macmillan Press, London (1970).10.1007/978-1-4684-1860-6Search in Google Scholar
[20] I.S. Kim, S.S. Kang: Int. J. Pres. Vess. Piping. 62 (1995) 123.10.1016/0308-0161(95)93969-CSearch in Google Scholar
[21] P.J. Ferreira, I.M. Roberston, H.K. Birnbaum: Acta Metall. 46 (1998) 1749.10.1016/S1359-6454(97)00349-2Search in Google Scholar
[22] B.H. Lee, I.S. Kim: J. Nucl. Mater. 226 (1995) 216.10.1016/0022-3115(95)00092-5Search in Google Scholar
[23] T.D. Lee, I.M. Bernstein: Acta Metall. Mater. 39 (1991) 363.10.1016/0956-7151(91)90315-RSearch in Google Scholar
[24] M.F. Maday: J. Nucl. Mater. 283–287 (2000) 689.10.1016/S0022-3115(00)00280-4Search in Google Scholar
[25] P.G. McCormick: Acta Metall. 21 (1973) 873.10.1016/0001-6160(73)90144-2Search in Google Scholar
[26] P. Sofronis, H.K. Birnbaum: J. Mech. Phys. Solids. 43 (1995) 49.10.1016/0022-5096(94)00056-BSearch in Google Scholar
© 2003 Carl Hanser Verlag, München
