Abstract
Tensile ductility and dynamic recrystallization of AZ31 (Mg-3Al-1Zn) alloy samples were investigated at the temperature range of 25°C–200°C. Samples were cut from a strongly textured, hot rolled AZ31 plate from three different orientations in order to activate alternate deformation mechanisms during uniaxial tensile loading. Dynamic recrystallization (DRX) behavior was found to be highly dependent on the active deformation modes at temperatures between 100°C and 200°C, where non-basal slip mechanisms (prismatic and pyramidal <c+a>) retards DRX whereas basal slip promotes DRX. The final microstructure and elongation to failure vary with active deformation modes at moderately elevated temperatures (>50°C), while at room temperature elongation to failure seems to be insensitive to the deformation modes. There is a significant indication that twinning initiated shear localization and induced an earlier fracture at elevated temperatures. More homogenous deformation until necking was observed when prismatic slip was the main active deformation mode.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
S.E. Ion, F.J. Humphreys, and S.H. White, “Dynamic recrystallisation and the development of microstructure during the high temperature deformation of magnesium,” Acta Metallurgica, 30(10) (1982), 1909–1919.
M.R. Barnett, “Twinning and the ductility of magnesium alloys Part II. “Contraction” twins,” Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 464(1–2) (2007), 8–16.
S.R. Agnew and Ö. Duygulu, “Plastic anisotropy and the role of non-basal slip in magnesium alloy AZ31B,” International Journal of Plasticity, 21(6) (2005), 1161–1193.
T. Al-Samman and G. Gottstein, “Dynamic recrystallization during high temperature deformation of magnesium,” Materials Science and Engineering: A, 490(1–2) (2008), 411–420.
M.M. Myshlyaev, et al., “Twinning, dynamic recovery and recrystallization in hot worked Mg-Al-Zn alloy,” Materials Science and Engineering: A, 337(1–2) (2002), 121–133.
A.G. Beer and M. R. Barnett, “Micro structural development during hot working of Mg-3Al-1Zn,” Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 38(8) (2007), 1856–1867.
M. Al-Maharbi, et al., “Microstructure, crystallographic texture, and plastic anisotropy evolution in an Mg alloy during equal channel angular extrusion processing,” Materials Science and Engineering: A, 528(25–26) (2011), 7616–7627.
A. Jain and S.R. Agnew, “Modeling the temperature dependent effect of twinning on the behavior of magnesium alloy AZ31B sheet,” Materials Science and Engineering: A, 462(1–2) (2007), 29–36.
M.R. Barnett, “Twinning and the ductility of magnesium alloys: Part I: “Tension” twins,” Materials Science and Engineering: A, 464(1–2) (2007), 1–7.
Z. Keshavarz and M. R. Barnett ,“EBSD analysis of deformation modes in Mg-3Al-lZn,” Scripta Materialia, 55(10) (2006), 915–918.
S.M. Razavi, et al. ,“Effect of grain size on prismatic slip in Mg-3Al-1Zn alloy,” Scripta Materialia, 67(5) (2012), 439–442.
A. Jérusalem, A. Fernández, and M. T. Pérez-Prado, “Continuum modeling of {1012} twinning in a Mg-3%Al-1%Zn rolled sheet,” Revista de Metalurgia, 46(Extra) (2010), 133–137.
M. Igarashi, M. Khantha, and V. Vitek, “N-Body Interatomic Potentials For Hexagonal Close-Packed Metals,” Philosophical Magazine B-Physics of Condensed Matter Statistical Mechanics Electronic Optical and Magnetic Properties, 63(3) (1991), 603–627.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 TMS (The Minerals, Metals & Materials Society)
About this chapter
Cite this chapter
Dogan, E., Vaughan, M.W., Hayrettin, C., Karaman, I., Ayoub, G. (2014). The Role of Deformation Modes on Ductility and Dynamic Recrystallization Behavior of AZ31 Mg Alloy at Low Temperatures. In: Alderman, M., Manuel, M.V., Hort, N., Neelameggham, N.R. (eds) Magnesium Technology 2014. Springer, Cham. https://doi.org/10.1007/978-3-319-48231-6_32
Download citation
DOI: https://doi.org/10.1007/978-3-319-48231-6_32
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48589-8
Online ISBN: 978-3-319-48231-6
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)