Tool Steels: Forging Simulation and Microstructure Evolution of Large Scale Ingot

• Authors: S. Mengaroni , F. Cianetti , M. Calderini , E. Evangelista , A. Di Schino , H. McQueen
• Languages of publication: EN

Abstracts

EN

The aim of this paper is to analyze the hot working behavior of two different steels based on 3% and 5% Cr steel chemistry, respectively. Hot deformation is studied by hot torsion tests in the range of temperatures 1000-1200°C and strain rates 0.01, 0.10, 1.00 s^{-1}. At given temperatures and strain rates flow curves exhibit a peak followed by a decline towards a steady state which is indicative of dynamic recrystallization. At constant strain, flow stress increases with increasing strain rate and decreasing temperature. The analysis of the constitutive equation relating peak flow stress, strain rate and temperature shows high activation energy values for both steels. Recrystallized volume fraction of steels after hot deformation is estimated based on the grain orientation spread as measured by electron backscattered diffraction technique, on the hot deformed and quenched materials.

Keywords

EN

06.60.Ei; 61.05.J-; 81.05.Bx

Discipline

• 06.60.Ei: Sample preparation (including design of sample holders)
• 81.05.Bx: Metals, semimetals, and alloys
• 61.05.J-: Electron diffraction and scattering(for electron diffractometers, see 07.78.+s)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 4
• Pages: 629-632

Dates

published

2015-10

Contributors

author

S. Mengaroni

• Università degli Studi di Perugia, Via G. Duranti 63, I06125 Perugia, Italy

author

F. Cianetti

• Università degli Studi di Perugia, Via G. Duranti 63, I06125 Perugia, Italy

author

M. Calderini

• Società delle Fucine, Viale B. Brin 218, I05100 Terni, Italy

author

E. Evangelista

• Società delle Fucine, Viale B. Brin 218, I05100 Terni, Italy

author

A. Di Schino

• Centro Sviluppo Materiali S.p.A., Via di Castel Romano 100, I00128 Roma, Italy

author

H. McQueen

• Concordia University, 1455 Maisonneuve W. EV 3.420, Montreal, H3G 1M8, Canada

References

• [1] H.J. McQueen, E. Evangelista, in: Proc. 2nd Int. Conf. on Superhigh Strength Steels, Milano (Italy), 2010
• [2] E. Evangelista, M. Masini, M. El Methedi, S. Spigarelli, J. Alloys Comp. 378, 151 (2004), doi: 10.1016/j.jallcom.2003.11.170
• [3] H.J. McQueen, J.J. Jonas, Metal Forming: Interrelation between Theory and Practice, Plenum Press, New York 1971, doi: 10.1007/978-1-4615-1757-3
• [4] T. Sakai, A. Belyakov, R. Kuibyshev, H. Miura, J.J. Jonas, Prog. Mater. Sci. 60, 130 (2014), doi: 10.1016/j.pmatsci.2013.09.002
• [5] C. Imbert, N.D. Ryan, H.J. McQueen, Metall. Mater. Trans. A 15, 1855 (1984), doi: 10.1007/BF02664899
• [6] C. Imbert, H.J. McQueen, Mater. Sci. Tech. Ser. 16, 532 (2000)
• [7] H.J. McQueen, A.C. Imbert, in: Proc. Int. Conf. Thermomechanical Processing and Mechanical Properties of Hypereutectoid Steels, Warrendale, 1997, TMS-AIME, p. 55
• [8] H.J. McQueen, E. Evangelista, N. Ryan, in: Proc. Int. Conf. on Thermomechanical Processing: Mechanics, Microstructure and Control, Sheffield, 2003, p. 359
• [9] M.F. Abbod, C.M. Sellars, A. Tanaka, D.A. Linkens, M. Mahfouf, Mater. Sci. Eng. A 491, 290 (2008), doi: 10.1016/j.msea.2008.02.005
• [10] A. Di Schino, L. Alleva, M. Guagnelli, Mater. Sci. Forum 715-716, 860 (2012), doi: 10.4028/wwwscientific.net/MSF.715-715.860
• [11] Y. Jin, M. Bernacki, G.S. Rohrer, A.D. Rollett, B. Lin, N. Bozzolo, Mater. Sci. Forum 113-116, 120 (2013), doi: 10.4028/www.scientific.net/MSF.753.113
• [12] L. Lianos, B. Pereda, D. Jorge-Badiola, J.M. Rodriguez-Ibabe, B. Lopez, Mater. Sci. Forum 753, 443 (2013), doi: 10.4028/www.scientific.net/MSF.753.443

Identifiers

DOI

10.12693/APhysPolA.128.629