Superplastic Behaviour of an Extruded AZ91 Alloy

• Authors: Z. Trojanová , K. Turba , Z. Száraz , T. Ryspaev , P. Palček , M. Chalupová
• Languages of publication: EN

Abstracts

EN

Plastic deformation of extruded AZ91 magnesium alloy was investigated at various strain rates and in a temperature range of 360-420°C. Samples exhibiting superplastic behaviour were prepared with different thermo-mechanical treatments. Microstructure of samples was observed by light and scanning electron microscopy. The strain rate sensitivity parameter m has been estimated by the abrupt strain rate change method. Possible physical mechanisms of the superplastic flow are discussed.

Keywords

EN

81.05.Bx; 62.20.fq

Discipline

• 81.05.Bx: Metals, semimetals, and alloys
• 62.20.fq: Plasticity and superplasticity

• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 3
• Pages: 597-600

Dates

published

2012-09

Contributors

author

Z. Trojanová

• Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Ke Karlovu 5, CZ-121 16 Praha 2, Czech Republic

author

K. Turba

• Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Ke Karlovu 5, CZ-121 16 Praha 2, Czech Republic

author

Z. Száraz

• Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Ke Karlovu 5, CZ-121 16 Praha 2, Czech Republic

author

T. Ryspaev

• Institute of Welding Engineering and Cutting Manufacturing Processes (ISAF), Clausthal University of Technology, Agricola Str. 2, D-38678 Clausthal-Zellerfeld, Germany

author

P. Palček

• Department of Materials Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, SK-010 26 Žilina, Slovak Republic

author

M. Chalupová

• Department of Materials Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, SK-010 26 Žilina, Slovak Republic

References

• [1] R. von Mises, Z. Angew. Math. Mech. 8, 161 (1928)
• [2] M. Knezevic, A. Levinson, R. Harris, R.K. Mishra, R.D. Doherty, S.R. Kalidindi, Acta Mater. 58, 6230 (2010)
• [3] K. Máthis, J. Čapek, Z. Zdražilová, Z. Trojanová, Mater. Sci. Eng. A 528, 5904 (2011)
• [4] R.Z. Valiev, O.A. Kaibyshev, Phys. Status Solidi A 44, 477 (1977)
• [5] R.Z. Valiev, O.A. Kaibyshev, Phys. Status Solidi A 45, 77 (1978)
• [6] A. Bussiba, A. Ben Artzy, A. Shtechman, S. Ifergan, M. Kupiec, Mater. Sci. Eng. A 302, 56 (2001)
• [7] D.L. Yin, K.F. Zhang, G.F. Wang, W.B. Han, Mater. Lett. 59, 1714 (2005)
• [8] J.C. Tan, M.J. Tan, Mater. Sci. Eng. A 339, 81 (2003)
• [9] J.C. Tan, M.J. Tan, Scr. Mater. 47, 101 (2002)
• [10] M. Mabuchi, K. Ameyama, H. Iwasaki, K. Higashi, Acta Mater. 47, 2047 (1999)
• [11] D.L. Yin, K.F. Zhang, G.F. Wang, W.B. Han, Mater. Lett. 59, 1714 (2005)
• [12] M. Furui, C. Xu, T. Aida, M. Inoue, H. Anada, T.G. Langdon, Mater. Sci. Eng. A 410-411, 439 (2005)
• [13] O. Sivakesavam, Y.V.R.K. Prasad, Mater. Sci. Eng. A 323, 270 (2002)
• [14] K. Nakashima, H. Iwasaki, T. Mori, M. Mabuchi, M. Nakamura, T. Asahina, Mater. Sci. Eng. A 293, 15 (2000)
• [15] V. Wesling, T. Ryspaev, A. Schram, Mater. Sci. Eng. A 462, 144 (2007)
• [16] T. Ryspaev, Z. Trojanová, O. Padalka, V. Wesling, Mater. Lett. 62, 4041 (2008)
• [17] M. Mabuchi, H. Iwasaki, K. Yanase, K. Higashi, Scr. Mater. 36, 681 (1997)
• [18] V.N. Chuvil'deev, T.G. Nieh, M.Yu. Gryaznov, V.I. Kopylov, A.N. Sysoev, J. Alloys Comp. 378, 253 (2004)
• [19] Y.H. Wei, Q.D. Wang, Y.P. Zhu, H.T. Zhou, W.J. Ding, Y. Chino, M. Mabuchi, Mater. Sci. Eng. A 360, 107 (2003)
• [20] Z. Száraz, Z. Trojanová, T. Ryspaev, V. Wesling, Mater. Sci. Forum 567-568, 365 (2008)
• [21] Z. Trojanová, Z. Száraz, T. Ryspaev, V. Wesling, Kovove Mater. 46, 285 (2008)
• [22] M. Mabuchi, K. Higashi, Acta Mater. 47, 1915 (1999)

Identifiers

DOI

10.12693/APhysPolA.122.597