Influence of rolling conditions and aging process on mechanical properties of high manganese steels

• Autorzy: Mazancova E. , Ruziak I. , Schindler I.
• Języki publikacji: EN

Abstrakty

EN

Three laboratory cast and rolled high manganese steels with different Mn (in the range of 24–28 wt%), C (in the interval of 0.2–1.2 wt%) and Al (from 2.3 wt% to 12 wt%) contents has been investigated. Differences in chemical compositions, rolling conditions and followed by aging process at the temperature of 500 °C and four different aging dwells (in the range of 6 min to 60 min) have led to various k-carbides precipitation. The k-carbides have been responsible for the mechanical properties. The intragranular type of nano-size has increased the strength, respectively hardness level whereas the k-carbides nucleated in the intergranular form have reached size of micrometre and in lower volume fraction have not been importantly able to increase the matrix hardness, especially in case of lower C portion. Balanced Mn, C and Al contents for optimised k-carbides precipitation have been also discussed. The materials were hot rolled to strips of 1.9 mm in thickness from the heating temperature of 1100 °C using the rolling mill Tandem.

Słowa kluczowe

EN

high-manganese steel; hot rolling; aging; k-carbides; hardness

PL

walcowanie na gorąco; starzenie się; węglik; twardość

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2012
• Tom: Vol. 12, no. 2
• Strony: 142--147
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Mazancova E.

• Technical University of Ostrava, Faculty of Materials Engineering, Tr. 17. listopadu 15/2192, 708 33 Ostrava-Poruba, Czech Republic

autor

Ruziak I.

• Technical University of Ostrava, Faculty of Materials Engineering, Tr. 17. listopadu 15/2192, 708 33 Ostrava-Poruba, Czech Republic

autor

Schindler I.

• Technical University of Ostrava, Faculty of Materials Engineering, Tr. 17. listopadu 15/2192, 708 33 Ostrava-Poruba, Czech Republic

Bibliografia

• [1] G. Frommeyer, U. Brux, Microstructures and mechanical properties of high-strength Fe–Mn–Al–C high-weight TRI-PLEX steels, Steel Research International 77 (9–10) (2006) 627–633.
• [2] C. Scott, S. Alain, M. Farral, N. Tsuji, Y. Tanaka, Austenitic steel for automotive application, Revue de Metallurgie 103 (6) (2006) 293–302.
• [3] E. Mazancova, New Material Types for Automotive Industry Physical Engineering Properties of High Strength Material Alloyed with Manganese and of Metal Hydrides Alloys for Hydrogen Storage, first ed., VSB-Technical University of Ostrava, Ostrava, 2007 (in Czech).
• [4] V.H. Schumann, Martensitische Umwandlung in austenitischen Mangan–Kohlenstoff–Stahlen, Neue Hutte 17 (10) (1972) 605–609.
• [5] A.S. Hamada, Manufacturing mechanical properties and corrosion behaviour of high-Mn TWIP steels, Acta University of Oulu C281 (2007) http://herkules.oulu.fi/issm03553213/
• [6] E. Mazancova, I. Schindler, P. Kozelsky Some mechanical and corrosion aspects of chosen TWIP alloys, Metallurgical Journal 63 (6) (2010) 127–130.
• [7] O. Akselrad, I.C. Kalashnikov, E.M. Silva, M.C. Chadiev, R.A. Simao, Diagram of phase transformations in austenite quenched Fe–28%Mn–8.5%Al–1%C–1.25%Si alloy as a result of aging at isothermal heating, MITOM 618 (12) (2006) 16–23 (in Russian).
• [8] T.F. Liu, J.S. Chou, C.C. Wu, Effect of Si addition on the microstructure of an Fe–8.0Al–29.0Mn–0.90C alloy, Metallurgical and Materials Transactions 21A (7) (1990) 1891–1899.
• [9] http://www.fmmi.vsb.cz/model/
• [10] E. Mazancova, K. Mazanec, The stacking fault energy evaluation of the TWIP and TRIPLEX alloys, Metallic Materials 47 (6) (2009) 1–6.
• [11] A. Dumay, L.P. Chateau, S. Allain, S. Migot, O. Bonaziz, Influence of addition elements on the stacking fault energy and mechanical properties of an austenite Fe–Mn–C steel, Materials Science and Enginering A 483–484 (6) (2008) 174–187.
• [12] K. Ishida, H. Ohtani, N. Satoh, R. Kainuma, T. Nishizawa, Phase equilibrium in Fe–Mn–Al–C alloys, ISIJ International 30 (8) (1990) 680–686.
• [13] K. Sato, M. Ichinose, Y. Hirotsu, Y. Inonue, Effects of deformation induced phase transformation and twinning on the mechanical properties of austenitic Fe–Mn–Al-alloys, ISIJ International 29 (10) (1989) 868–877.
• [14] V. Rigaut, D. Daloz, J. Drillet, A. Perlade, P. Maugis, G. Lesoult, Phase equilibrium study in quaternary iron-rich Fe–Al–Mn–C alloys, ISIJ International 47 (6) (2007) 898–906.
• [15] I. Schindler, E. Mazancova, E. Hadasik, D. Kuc, G. Niewielski, P. Kawulok, S. Rusz, M. Legerski, Structural and mechanical properties of laboratory rolled high-alloyed steels with Mn and Al, in: Proceedings of the Steel Sheets Conference, 2011.