Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-30T10:40:47.605Z Has data issue: false hasContentIssue false

Effect of temperature on the suppression of twinning in textured magnesium

Published online by Cambridge University Press:  05 August 2019

Roshan Plamthottam
Affiliation:
Department of Mechanical Engineering, Whiting School of Engineering, The Johns Hopkins University, Baltimore, MD 21218-2682, USA
Steven Lavenstein*
Affiliation:
Department of Mechanical Engineering, Whiting School of Engineering, The Johns Hopkins University, Baltimore, MD 21218-2682, USA
Jaafar A. El-Awady*
Affiliation:
Department of Mechanical Engineering, Whiting School of Engineering, The Johns Hopkins University, Baltimore, MD 21218-2682, USA Department of Materials Science and Engineering, Whiting School of Engineering, The Johns Hopkins University, Baltimore, MD 21218-2682, USA
*
Address all correspondence to Steven Lavenstein at [email protected] and Jaafar A. El-Awady at [email protected]
Address all correspondence to Steven Lavenstein at [email protected] and Jaafar A. El-Awady at [email protected]
Get access

Abstract

In this work, the effect of temperature, in the range of 25 to 250 °C, on deformation twinning in textured polycrystalline pure magnesium (Mg) was investigated. Compression loading was applied perpendicular to the c-axis texture direction. The yield strength and strain hardening rate are shown to drastically decrease with increasing temperature with total suppression of twinning at 200 °C. This behavior is attributed to the decrease in the critical resolved shear stress for prismatic slip and temperature insensitivity of tensile twinning. These results provide a first step in fundamentally understanding the deformation of Mg at elevated temperatures and quantify the mechanisms that lead to their improved formability at elevated temperatures.

Type
Research Letters
Copyright
Copyright © The Author(s) 2019 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Jones, T. and Kondoh, K.: Ballistic analysis of new military grade magnesium alloys for armor applications. Magnes. Technol. 2011, 425430 (2011).Google Scholar
2.Blawert, C., Hort, N., and Kainer, K.U.: Automotive applications of magnesium and its alloys. Trans. Indian Inst. Met. 57, 397408 (2004).Google Scholar
3.Kumar, D.S., Sanaska, C.T., Ravindra, K., and Suman, K.N.S.: Magnesium and its alloys in automotive applications – a review. Am. J. Mater. Sci. Technol. 4, 1230 (2015).Google Scholar
4.Song, G. and Atrens, A.: Understanding magnesium corrosion: a framework for improved alloy performance. Adv. Eng. Mater. 5, 837858 (2003).Google Scholar
5.Chino, Y., Sassa, K., Kamiya, A., and Mabuchi, M.: Enhanced formability at elevated temperature of a cross-rolled magnesium alloy sheet. Mater. Sci. Eng. A 441, 349356 (2006).Google Scholar
6.Wagoner, R.H., Lou, X.Y., Li, M., and Agnew, S.R.: Forming behavior of magnesium sheet. J. Mater. Process. Technol. 177, 483485 (2006).Google Scholar
7.Jain, A. and Agnew, S.R.: Modeling the temperature dependent effect of twinning on the behavior of magnesium alloy AZ31B sheet. Mater. Sci. Eng. A 462, 2936 (2007).Google Scholar
8.Barnett, M.R.: Twinning and the ductility of magnesium alloys: part II. “contraction” twins. Mater. Sci. Eng. A 464, 816 (2007).Google Scholar
9.Barnett, M.R., Keshavarz, Z., Beer, A.G., and Atwell, D.: Influence of grain size on the compressive deformation of wrought Mg-3Al-1Zn. Acta Mater. 52, 50935103 (2004).Google Scholar
10.Reed-Hill, R.E. and Robertson, W.D.: Deformation of magnesium single crystals by nonbasal slip. J. Met. Trans. AIME 220, 496502 (1957).Google Scholar
11.Flynn, P.W., Mote, J., and Dorn, J.E.: On the thermally activated mechanism of prismatic slip in magnesium single crystals. Trans. Metall. Soc. AIME 221, 11481154 (1961).Google Scholar
12.Chapuis, A. and Driver, J.H.: Temperature dependency of slip and twinning in plane strain compressed magnesium single crystals. Acta Mater. 59, 19861994 (2011).Google Scholar
13.Kelley, E.W. and Hosford, W.F.: Plane-strain compression of magnesium and magnesium alloy crystals. Trans. AIME 242, 99 (1968).Google Scholar
14.Wonziewicz, B.C. and Backofen, W.A.: Plasticity of magnesium crystals. Trans. AIME 239, 1422 (1967).Google Scholar
15.Yoshinaga, H. and Horiuchi, R.: On the nonbasal slip in magnesium crystals. Trans. JIM 5, 1427 (1964).Google Scholar
16.Ardeljan, M., Beyerlein, I., McWilliams, B., and Knezevic, M.: Strain rate and temperature sensitive multi-level crystal plasticity model for large plastic deformation behavior: application to AZ31 magnesium alloy. Int. J. Plast. 83, 90109 (2016).Google Scholar
17.Beyerlein, I. and Tome, C.N.: A dislocation-based constitutive law for pure Zr including temperature effects. Int. J. Plast. 24, 867895 (2008).Google Scholar
18.Ardeljan, M., McCabe, R.J., Beyerlein, I.J., and Knezevic, M.: Explicit incorporation of deformation twins into crystal plasticity finite element models. Comp. Meth. Appl. Mech. Eng. 295, 396413 (2015).Google Scholar
19.Cheng, J., Shen, J., Mishra, R.K., and Ghosh, S.: Discrete twin evolution in Mg alloys using a novel crystal plasticity finite element model. Acta Mater. 149, 142153 (2018).Google Scholar