Abstract
The correlation has been studied between the structure of a high-nitrogen austenitic Cr-Mn-N steel formed in the process of combined hardening treatment, including cold plastic deformation (CPD), and its mechanical and corrosion properties. The structure and properties of commercial high-nitrogen (0.8% N) 07Kh16AG13M3 steel is analyzed after rolling by CPD and aging at 500 and 800°C. It is shown that CPD of the steel occurs by dislocation slip and deformation twinning. Deformation twinning and also high resistance of austenite to martensitic transformations at true strains of 0.2 and 0.4 determine the high plasticity of the steel. The contribution of the structure imperfection parameters to the broadening of the austenite lines during CPD is estimated by X-ray diffraction. The main hardening factor is stated to be lattice microdistortions. Transmission electron microscopy study shows that heating of the deformed steel to 500°C leads to the formation of the intermediate CrN phase by a homogeneous mechanism, and the intermtallic χ phase forms along the austenite grain boundaries in the case of heating at 800°C. After hardening by all investigated technological schemes, exception for aging at 800°C, the steel does not undergo pitting corrosion and is slightly prone to a stress corrosion cracking during static bending tests, while aging at 800°C causes pitting corrosion at a pitting formation potential E pf = −0.25 V.
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References
V. Gavriljuk and H. Berns, High Nitrogen Steels (Springer, Berlin, 1999).
V. G. Gavriljuk, “Physical foundations of nitrogen steels,” in Promising Materials: Structure and Investigation Methods (TGU, Tol’yatti, 2007), pp. 5–74.
H. J. C. Speidel and M. O. Speidel, “Nickel and chromium based high nitrogen alloys,” in HNS 2003 (High Nitrogen Steels), Ed. by M. O. Markus, C. Kowanda, and M. Diener (Swiss Federal Inst. Technol., Zurich, 2003), pp. 101–112.
H. Berns, “Stickstoffmartensit, grundlage und anwendung,” HNM: Harter.-Techn., Mitt. 55(1), 8–14 (2000).
O.A. Bannykh, V. M. Blinov, V. V. Berezovskaya, M. V. Kostina, M. A. Gervas’ev, I. V. Golyakov, and I. S. Trushin, “Effect of γ → α martensitic transformation in Fe-Cr-N alloys on the stress corrosion cracking,” Russian Metallurgy (Metally), No. 4, 310–314 (2005).
V. V. Berezovskaya, “The alloying system of high-nitrogen austenite steels, the structure, mechanical properties, and corrosion properties,” in Proceedings of I International Interactive Scientific-Engineering Conference on Innovations in Materials Science and Metallurgy (Ural’skii Universitet, Yekaterinburg, 2012), pp. 257–266.
M. O. Speidel, “New nitrogen-containing austenite stainless steels with high strength and plasticity,” Metalloved. Term. Obrab. Met., No. 11, 9–14 (2005).
V. V. Berezovskaya, T. G. Lobanova, and I. A. Krutikova, “Effect of the hardening technology on the structure, properties, and SCC resistance of high-strength bandage steels,” in Proceeding of XVII St. Petersburg Readings on the Problems of the Strength Devoted to 90th Jubilee of Prof. A.N. Orlov (SPbGU, St. Petersburg, 2007), pp. 166–168.
V. V. Berezovskaya, “Effect of thermo-plastic treatment on structure and corrosion properties of high nitrogen Cr-steels,” J. Met. Eng. 2(1), 19–28 (2013).
G. Stein and I. Hucklenbroich, “Manufacturing and application of high nitrogen steels,” in HNS 2003 (High Nitrogen Steels), Ed. by M. O. Markus, S. Kowanda, and M. Diener (Swiss Federal Inst. Technol., Zürich, 2003), pp. 21–30.
R. Ritzenhoff, “Manufacturing of HNS alloys at Energietechnik Essen Gmbh—a process overview,” in Proceedings of 10th International Conference on High Nitrogen Steels (MISiS, Moscow, 2009), pp. 243–248.
State Standard GOST 9.901.1-89. General Requirements for the Methods of Corrosion Cracking Tests (Izd-vo Standartov, Moscow, 1999).
State Standard GOST 9.912.-89. Methods of Accelerated Pitting Corrosion Resistance Tests (Izd-vo Standartov, Moscow, 1993).
V. V. Berezovskaya, R. A. Savrai, E. A. Merkushkin, and V. A. Makarov, “Structure, mechanical and corrosion properties of new high-nitrogen Cr-Mn steels containing molybdenum,” Russian Metallurgy (Metally), No. 5, 380–388 (2012).
A. J. Bottger, D. E. Nanu, and A. Marashdeh, “Orderdisorder transitions in high nitrogen steels: from ab-initio to statistical thermodynamics,” in Proceedings of 10th International Conference on High Nitrogen Steels (MISiS, Moscow, 2009), pp. 31–34.
V. V. Berezovskaya, “On the nature of high sensitivity of Fe-Ni and Fe-Ni-Co maraging steels with titanium to delayed failure,” Russian Metallurgy (Metally), No. 5, 419–428 (2003).
O. A. Bannykh, P. B. Budberg, S. P. Alisova, et al., Phase Diagrams of Binary and Multicomponent Fe-Based Systems: A Handbook (Metallurgiya, Moscow, 1986).
S. S. Gorelik, L. N. Rastorguev, and Yu. A. Skakov, X-ray Diffraction and Electron-Optical Analysis (Metallurgiya, Moscow, 1970).
Ya. S. Umanskii, Yu. A. Skakov, A. N. Ivanov, and L. N. Rastorguev, Crystallography, X-ray Diffraction, and Electron Microscopy (Metallurgiya, Moscow, 1982).
S. J. Mushnikova, M. V. Kostina, Ch. A. Andreev, and L. Ts. Zhekova, “Effect of the structure and phase composition on the pitting corrosion resistance of the Cr-N steels with overequilibrium nitrogen content,” in Proceedings of 10th International Conference on High Nitrogen Steels (MISiS, Moscow, 2009), pp. 300–305.
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Original Russian Text © V.V. Berezovskaya, M.S. Khadyev, E.A. Merkushkin, Yu.A. Sokolovskaya, 2013, published in Metally, 2013, No. 6, pp. 54–62.
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Berezovskaya, V.V., Khadyev, M.S., Merkushkin, E.A. et al. Influence of deformation on the structure and mechanical and corrosion properties of high-nitrogen austenitic 07Kh16AG13M3 steel. Russ. Metall. 2013, 855–862 (2013). https://doi.org/10.1134/S0036029513110049
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DOI: https://doi.org/10.1134/S0036029513110049