Abstract
The influence of aging treatment on the shape memory effect and corrosion resistance of a newly developed Fe–Mn–Si–Cr–Ni-based alloy containing C, N, and V elements was investigated. Results showed that V(CN) and Cr23C6 particles, precipitated during aging, could improve the shape recovery ratio to 72%, compared with that of 21% for the solution treated sample, when the alloy was aged for 24 h. The corrosion behavior in 0.5 M H2SO4 solution was almost the same for all the samples, barring a slight difference in the passivation range. In addition, the passivation current and critical current required for the onset of passivation of the aged samples were almost triple that of the unaged. In 3.5% NaCl solution the corrosion behavior of all aged samples was that of general dissolution with localized attack (pitting), which can be attributed to the micro-cathodic effect of the V(CN) and Cr23C6 particles precipitated during aging. Although the best corrosion resistance in both H2SO4 and NaCl solutions was shown by the solution treated sample, 24 h-aged sample exhibited an improved corrosion resistance, ascribed to the improved chemical homogeneity of the austenite matrix due to long aging time (24 h).
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References
A. Sato, E. Chishima, K. Soma, and T. Mori: Shape memory effect in γ⇄ε transformation in Fe-30Mn-1Si alloy single crystals. Acta Metall. 30(6), 1177 (1982).
K. Otsuka and C.M. Wayman (eds.): (Cambridge University Press, Cambridge, 1988).
O. Söderberg, X.W. Liu, P.G. Yakovenko, K. Ullakko, and V.K. Lindroos: Corrosion behaviour of Fe–Mn–Si based shape memory steels trained by cold rolling. Mater. Sci. Eng., A 273, 543 (1999).
H.C. Lin, K.M. Lin, C.S. Lin, and T.M. Ouyang: The corrosion behavior of Fe-based shape memory alloys. Corros. Sci. 44(9), 2013 (2002).
Bikas C. Maji, C.M. Das, Madangopal Krishnan, and R.K. Ray: The corrosion behaviour of Fe–15Mn–7Si–9Cr–5Ni shape memory alloy. Corros. Sci. 48(4), 937 (2006).
C.A. Della Rovere, J.H. Alano, R. Silva, P.A.P. Nascente, J. Otubo, and S.E. Kuri: Influence of alloying elements on the corrosion properties of shape memory stainless steels. Mater. Chem. Phys. 133(2–3), 668 (2012).
S. Kajiwara, D.Z. Liu, T. Kikuchi, and N. Shinya: Remarkable improvement of shape memory effect in Fe-Mn-Si based shape memory alloys by producing NbC precipitates. Scr. Mater. 44(12), 2809 (2001).
S. Kajiwara, D.Z. Liu, T. Kikuchi, and N. Shinya: Development of Fe-Mn-Si based shape memory alloys with no necessity of “training”. J. Phys. IV France 11(PR8), 199 (2001).
A. Baruj, T. Kikuchi, S. Kajiwara, and N. Shinya: Effect of pre-deformation of austenite on shape memory properties in Fe-Mn-Si-based alloys containing Nb and C. Mater. Trans. 43(3), 585 (2002).
Y.H. Wen, L.R. Xiong, N. Li, and W. Zhang: Remarkable improvement of shape memory effect in an Fe–Mn–Si–Cr–Ni–C alloy through controlling precipitation direction of Cr23C6. Mater. Sci. Eng., A 474(1–2), 60 (2008).
Z.Z. Dong, U.E. Klotz, C. Leinenbach, A. Bergamini, C. Czaderski, and M. Motavalli: A novel Fe-Mn-Si shape memory alloy with improved shape recovery properties by VC precipitation. Adv. Eng. Mater. 11(1–2), 40 (2009).
S. Farjami, K. Hiraga, and H. Kubo: Crystallography and elastic energy analysis of VN precipitates in Fe–Mn–Si–Cr shape memory alloys. Acta Mater. 53(2), 419 (2005).
H. Kubo, K. Nakamura, F. Susan, and T. Maruyama: Characterization of Fe–Mn–Si–Cr shape memory alloys containing VN precipitates. Mater. Sci. Eng., A 378(1–2), 343 (2004).
B. Dutta, E.J. Palmiere, and C.M. Sellars: Modelling the kinetics of strain induced precipitation in Nb microalloyed steels. Acta Mater. 49(5), 785 (2001).
W.M. Rainforth, M.P. Black, R.L. Higginson, E.J. Palmiere, C.M. Sellars, I. Prabst, P. Warbichler, and F. Hofer: Precipitation of NbC in a model austenitic steel. Acta Mater. 50(4), 735 (2002).
ACKNOWLEDGMENTS
The authors are grateful to the Natural Science Foundation of Tianjin (No. 13JCZDJC31900 and No. 14JCZDJC38700), China National Funds for Distinguished Young Scientists (No. 51325401), the National Nature Science Foundation of China (No. 51474155), and the International Thermonuclear Experimental Reactor (ITER) Program Special Project (No. 2014GB125006) for grant and financial support.
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Liu, Y., Dong, Z., Yu, L. et al. Influence of aging on shape memory effect and corrosion resistance of a new Fe–Mn–Si-based alloy. Journal of Materials Research 30, 179–185 (2015). https://doi.org/10.1557/jmr.2014.363
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DOI: https://doi.org/10.1557/jmr.2014.363