S. V. Afanasiev, E. G. Volkova, V. V. Sagaradze
THE STRUCTURE AND PROPERTIES OF HARDENED STAINLESS STEELS WITH A SHAPE MEMORY EFFECT
DOI: 10.17804/2410-9908.2015.6.019-026 A possibility of obtaining the shape memory effect has been investigated as a result of γ→ε→γ transformations in stainless steels hardened by VC carbides. Age hardening conditions at 650 and 720 °C for stainless steels containing (in mass %) 0.20 – 0.35 C, 1 V, 3 – 4 Si, 9 and 13 – 14 Cr are presented. The values of reversible strain e determined after heating to 400 °C in specimens preliminarily deformed by 3.5 – 4 % vary from 0.15 to 2.7 % depending on the composition of the steels and the conditions of stabilizing and destabilizing aging.
Keywords: shape memory effect, stainless steel, VC carbide, martensite transformation, ε-phase, electron microscopy References:
- Sagaradze V.V., Belozerov Ye.V., Pecherkina N.L., Mukhin M.L., Zaynutdinov Yu.R. The shape memory effect in high-strength precipitation-hardening austenitic steels. Materials Science and Engineering: A, 2006, vol. 438–440, pp. 812–815. DOI: 10.1016/j.msea.2006.01.113.
- Sagaradze V.V., Belozerov E.V., Mukhin M.L., Zainutdinov Yu.R., Pecherkina N.L., Zavalishin V.A. A new approach to creation of high-strength austenitic steels with a controlled shape-memory effect. The Physics of Metals and Metallography, 2006, vol. 101, iss. 5, pp. 506–512. DOI: 10.1134/S0031918X06050127.
- Sagaradze V.V., Mukhin M.L., Belozerov E.V., Zainutdinov Yu.R., Pecherkina N.L., Filippov Yu.I. Controlled shape memory effect in high strength Mn and Cr-Mn steels. Materials Science and Engineering: A, 2008, vol. 481–482, pp. 742–746. DOI:10.1016/j.msea.2007.02.155.
- Sagaradze V.V., Kositsyna I.I., Muкhin M.L., Belozerov E.V., Zaynutdinov Yu.R. Highstrength precipitation-hardening austenitic Fe-Mn-V-Mo-C steels with shape memory effect. Materials Science and Engineering: A, 2008, vol. 481–482, pp. 747–751. DOI: 10.1016/j.msea.2007.02.158.
- Sagaradze V.V., Voronin V.I., Filippov Yu.I., Kazantsev V.A., Mukhin M.L., Belozerov E.V., Pecherkina N.L., Kataeva N.V., Popov A.G. Martensitic transformations γ-ε(α) and the shape-memory effect in aging high-strenght manganese austenitic steels. The Physics of Metals and Metallography, 2008, vol. 106, iss.6, pp 630–640. DOI: 10.1134/S0031918X08120120.
- Sagaradze V. V., Afanas'ev S. V., Kataeva N. V. Shape memory effect in Mn-V-C austenitic steels involving deformation reorientation of ε-martensite. The Physics of Metals and Metallography, 2013, vol. 114, iss. 4, pp. 322–326. DOI: 10.1134/S0031918X13020117.
- Gavriljuk V.G., Bliznuk V.V., Shanina V.D., Kolesnik S.P. Effect of silicon on atomic distribution and shape memory in Fe-Mn base alloys. Materials Science and Engineering: A, 2005, vol. 406, iss. 1–2, pp. 1–10. DOI: 10.1016/j.msea.2005.05.043.
- Baruj A., Kikuchi T., Kajivara S., Shinya N. Improved shape memory properties and internal structures in Fe-Mn-Si-based alloys containing Nb and C. J. Phys. IV France, 2003, vol. 112, pp. 373–376. DOI: 10.1051/jp4:2003904.
- Dong Z.Z., Kajiwara S., Kikuchi T., Sawaguchi T. Effect of pre-deformation at room temperature on shape memory properties of stainless type Fe-15Mn-5Si-9Cr-5Ni-(0.5-l .0)NbC alloys. Acta Materialia, 2005, vol. 53, iss. 15, pp. 4009–4018. DOI: 10.1016/j.actamat.2005.04.035.
- Malyshev K.A., Vasilevskaya M. A change in the physical properties of martensite in titanium-alloyed iron-nickel alloys under tempering. Fizika Metallov i Metallovedenie, 1964, vol. 18, no. 5, pp. 793–795. (In Russian).
- Sagaradze V.V., Uvarov A.I. Uprochnenie i svoistva austenitnykh stalei [Hardening and Properties of Austenitic Steels]. Ekaterinburg, RIO UO RAS Publ., 2013, 720 p. (In Russian).
- Romanova R.R., Pushin V.G., Uksusnikov A.N., Buinov N.N. Strukturnyy mekhanizm stareniya austenitnykh zhelezomargantsevykh i zhelezonikelevykh stalei, uprochnyaemykh karbidom vanadiya. In: Struktura i svoistva nemagnitnykh stalei [Structure and Properties of Non-Magnetic Steels]. M., Nauka Publ., 1982, pp. 107–114.
- Van Aswegen J.S.T., Honeycombe R.W.K. Segregation and precipitation in stacking faults. Acta Metallurgica, 1962, vol.10, iss. 3, pp. 262–264.
Article reference
Afanasiev S. V., Volkova E. G., Sagaradze V. V. The Structure and Properties of Hardened Stainless Steels with a Shape Memory Effect // Diagnostics, Resource and Mechanics of materials and structures. -
2015. - Iss. 6. - P. 19-26. - DOI: 10.17804/2410-9908.2015.6.019-026. -
URL: http://eng.dream-journal.org/issues/2015-6/2015-6_59.html (accessed: 12/02/2024).
|