Abstract
Magnesium alloys have been used in the automotive and aerospace industry for several years, thanks to their high strength-to-density ratio. Their mechanical characteristics at room and even at elevated temperature have been well studied, whereas, when it comes to temperatures lower than room one, only a few studies are available in the literature. To this aim, the present paper investigates the mechanical behavior of AZ31 magnesium alloy sheets deformed at different temperature regimes. Tensile tests till fracture were carried out at room temperature, −100, −50, 100, and 300 °C using different specimen geometries in order to vary the stress triaxiality. The fracture strain values were identified making use of a combined numerical–experimental approach, whereas the fracture surfaces were qualitatively characterized by means of stereoscopy and scanning electron microscopy. Finally, the AZ31 fracture locus as a function of the stress state and temperature was constructed.
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
References
Liu Z, Dong Y, Mao P, Yu J (2019) Dynamic tensile and compressive properties of vacuum and ordinary die-casting AT72 magnesium alloy at high strain rates. J Magnes Alloy 1:150–162. https://doi.org/10.1016/j.jma.2013.07.004
Yoo MH (1981) Slip, twinning, and fracture in hexagonal close-packed metals. Metall Trans A 12:409–418
Sambasiva Rao G, Prasad YVRK (1982) Grain boundary strengthening in strongly textured magnesium produced by hot rolling. Metall Trans A 13(12):2219–2226
Huang X, Suzuki K, Watazu A, Shigematsu I, Saito N (2009) Improvement of formability of Mg–Al–Zn alloy sheet at low temperatures using differential speed rolling. J Alloy Compd 470(1–2):263–268
Doege E, Dröder K (2001) Sheet metal forming of magnesium wrought alloys-formability and process technology. J Mater Process Technol 115(1):14–19
Bussiba A (2003) Fracture and deformation potential of magnesium alloys at low temperatures 84:84–91. https://doi.org/10.1063/1.1472529
Jiang Y, Chen D, Chen Z, Liu J (2010) Effect of cryogenic treatment on the microstructure and mechanical properties of AZ31 magnesium alloy. Mater Manuf Process 25:837–841. https://doi.org/10.1080/10426910903496862
Wang H, Dong S, Lv G (2016) Plastic deformation characteristics of an Mg–3Al–1Zn alloy at low temperatures. Mater Des 92:143–150. https://doi.org/10.1016/j.matdes.2015.12.027
Bao Y, Wierzbicki T (2004) On fracture locus in the equivalent strain and stress triaxiality space. Int J Mech Sci 46:81–98. https://doi.org/10.1016/j.ijmecsci.2004.02.006
Wang Q, Bertolini R, Bruschi S, Ghiotti A (2019) Anisotropic fracture behavior of AZ31 magnesium alloy sheets as a function of the stress state and temperature. Int J Mech Sci 163. https://doi.org/10.1016/j.ijmecsci.2019.105146
Valoppi B, Brushi S, Ghiotti A, Shivpuri R (2017) Johnson–Cook based criterion incorporating stress triaxiality and deviatoric effect for predicting elevated temperature ductility of titanium alloy sheets. Int J Mech Sci 123:94–105. https://doi.org/10.1016/j.ijmecsci.2017.02.005
Jiao XD, Li LF, Liu HJ, Yang K (2006) Mechanical properties of low density alloys at cryogenic temperatures. AIP Conf Proc 824(1):69–76. https://doi.org/10.1063/1.2192335
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 The Minerals, Metals & Materials Society
About this paper
Cite this paper
Bertolini, R., Wang, Q., Ghiotti, A., Bruschi, S. (2021). Temperature-Dependent Fracture Loci of AZ31 Magnesium Alloy Sheets. In: Daehn, G., Cao, J., Kinsey, B., Tekkaya, E., Vivek, A., Yoshida, Y. (eds) Forming the Future. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-75381-8_130
Download citation
DOI: https://doi.org/10.1007/978-3-030-75381-8_130
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-75380-1
Online ISBN: 978-3-030-75381-8
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)