Abstract
The deformation behavior of AZ31B magnesium alloy sheet is studied in this paper. In view of its two characteristics, superplasticity and deformation instability, through the superplastic unidirectional tensile (initial strain ratio \( \rho_{0} < 0) \) and bidirectional tensile (bulging, the initial strain ratio \( \rho_{0} > 0) \) test, strain distribution under different deformation paths and strain path changes at the minimum cross section were studied. Besides, the tensile instability process of AZ31B magnesium alloy sheet was analyzed. The forming limit curve of AZ31B magnesium alloy sheet (FLC) was established. According to the curve analysis of the tensile load and the true strain at the minimum cross section of the tensile specimen, the industrial state AZ31B magnesium alloy sheet shows excellent superplasticity at a certain deformation velocity and temperature. When \( d\varepsilon_{2} = 0 \), the AZ31B magnesium alloy sheet was prone to present concentrated instability.
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
B. Song, R.L. Xin, N. Guo, T.T. Liu, Q.S. Yang, Research progress of strain hardening behavior at room temperature in wrought magnesium alloys. Chin. J. Nonferrous Met. 24(11), 2699–2710 (2014)
Y. Dong, J.Z. Liu, Effects of initial orientation on microstructure and mechanical properties of AZ31 magnesium alloy sheets fabricated by large strain rolling. Chin. J. Nonferrous Met. 24(7), 1700–1706 (2014)
Z.H. Chen, Wrought Magnesium Alloy AM60 (Chemical Industry Press, Beijing, 2005)
Z. Hui, Mechanical management and development. Mech. Manag. Dev. (1), 28–29 (2013)
S. Spigarelli, M.E. Mehtedi, M. Regev et al., High temperature creep and superplasticity in a Mg–Zn–Zr alloy. J. Mater. Sci. Technol. 28(5), 407–413 (2012)
T.B. Stoughton, A general forming limit criterion for sheet metal forming. Int. J. Mech. Sci. 42, 1–27 (2000)
M. Song, L. Wang, Z. Wang et al., The superplastic forming performance of hot rolled AZ31B sheet. Met. Form. Technol. 22(3), 50–52 (2004)
H. Takuda, K. Mori, N. Takakura et al., Finite element analysis of limit strains in bi-axial stretching of sheet metals allowing for ductile fracture. Int. J. Mech. Sci. 42, 785–798 (2000)
N. Duc-Toan, Y. Seung-Han, J. Dong-Won et al., A study on material modeling to predict spring-back in V-bending of AZ31 magnesium alloy sheet at various temperatures. Int. J. Adv. Manuf. Technol. 62(5–8), 551–562 (2012)
J. Park, J. Kim, N. Park et al., Study of forming limit for rotational incremental sheet forming of magnesium alloy sheet. Metall. Mater. Trans. A 41(1), 97–105 (2010)
S. Wun. The superplastic forming theory in consideration of cavity evolvement. J. Jishou Univ. 19(4), 9–19 (1998)
Li Wenjuan, Research on Forming Properties of AZ31B Magnesium Alloy Sheet Metal (Shandong University, Jinan, 2012)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Song, M., Huang, C., Jiang, W., Lu, W. (2019). Superplastic Forming Properties and Instability of Magnesium Alloy Sheet. In: Han, Y. (eds) Physics and Engineering of Metallic Materials. CMC 2018. Springer Proceedings in Physics, vol 217. Springer, Singapore. https://doi.org/10.1007/978-981-13-5944-6_52
Download citation
DOI: https://doi.org/10.1007/978-981-13-5944-6_52
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-5943-9
Online ISBN: 978-981-13-5944-6
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)