Abstract
For some modern steels with a body-centered cubic (bcc) crystal structure, it is observed that both tensile strength and ductility are significantly improved with decreasing temperature, which motivates the exploration of the cryogenic formability and fracture properties of these materials. The temperature-dependent plasticity and fracture phenomena of a modern bainitic steels with the bcc structure have been investigated by performing a comprehensive experimental program and finite element simulations, covering a broad range of loading conditions. Uniaxial tensile tests have been performed at different temperatures along three loading directions. Tensile tests using flat specimens with various geometries, including shear, central hole and notched dog bone, have been performed along the rolling direction at room temperature and –196 ℃. An advanced non-associated constitutive plasticity model is used to describe the temperature-dependent strength and hardening properties of the material. The local critical stress and strain variables extracted from finite element simulations of different fracture tests have been used to calibrate a unified fracture criterion, which considers the stress state dependence. The effects of temperature on the plasticity and stress state dependent fracture behavior of the modern bcc steels have been quantitatively determined.
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
Wang, X., Fan, X., Chen, X., Yuan, S.: Cryogenic deformation behavior of 6061 aluminum alloy tube under biaxial tension condition. J. Mater. Process. Technol. 303 (2022)
Yuan, S., Cheng, W., Liu, W.: Cryogenic formability of a solution-treated aluminum alloy sheet at low temperatures. J. Mater. Process. Technol. 298 (2021)
Liu, W., Hao, Y.: Damage and fracture prediction of 7075 high-strength aluminum alloy during cryogenic stamping process. Mech. Mater. 163 (2021)
Shen, F., Münstermann, S., Lian, J.: A unified fracture criterion considering stress state dependent transition of failure mechanisms in bcc steels at –196 °C. Int. J. Plast. 156 (2022)
Shen, F., Münstermann, S., Lian, J.: Cryogenic ductile and cleavage fracture of bcc metallic structures – influence of anisotropy and stress states. J. Mech. Phys. Solids, 105299 (2023)
Mu, L., Jia, Z., Ma, Z., Shen, F., Sun, Y., Zang, Y.: A theoretical prediction framework for the construction of a fracture forming limit curve accounting for fracture pattern transition. Int. J. Plast. 129 (2020)
Bao, Y., Wierzbicki, T.: On fracture locus in the equivalent strain and stress triaxiality space. Int. J. Mech. Sci. 46(1), 81–98 (2004)
Shen, F., et al.: Local formability of medium-Mn steel. J. Mater. Process. Technol. 299 (2022)
Zhang, Y., et al.: Ductility prediction of HPDC aluminum alloy using a probabilistic ductile fracture model. Theor. Appl. Fract. Mech. 119 (2022)
Bai, Y., Wierzbicki, T.: A new model of metal plasticity and fracture with pressure and Lode dependence. Int. J. Plast. 24(6), 1071–1096 (2008)
Lou, Y., Huh, H., Lim, S., Pack, K.: New ductile fracture criterion for prediction of fracture forming limit diagrams of sheet metals. Int. J. Solids Struct. 49(25), 3605–3615 (2012)
Mohr, D., Marcadet, S.J.: Micromechanically-motivated phenomenological Hosford-Coulomb model for predicting ductile fracture initiation at low stress triaxialities. Int. J. Solids Struct. 67–68, 40–55 (2015)
Barlat, F., Aretz, H., Yoon, J.W., Karabin, M.E., Brem, J.C., Dick, R.E.: Linear transfomation-based anisotropic yield functions. Int. J. Plast. 21(5), 1009–1039 (2005)
Barlat, F., et al.: Plane stress yield function for aluminum alloy sheets—Part 1: theory. Int. J. Plast. 19(9), 1297–1319 (2003)
Stoughton, T.B., Yoon, J.W.: Anisotropic hardening and non-associated flow in proportional loading of sheet metals. Int. J. Plast. 25(9), 1777–1817 (2009)
Shen, F., Münstermann, S., Lian, J.: Investigation on the ductile fracture of high-strength pipeline steels using a partial anisotropic damage mechanics model. Eng. Fract. Mech. 227, 106900 (2020)
Stoughton, T.B.: A non-associated flow rule for sheet metal forming. Int. J. Plast. 18(5–6), 687–714 (2002)
Lian, J., et al.: An evolving non-associated Hill48 plasticity model accounting for anisotropic hardening and r-value evolution and its application to forming limit prediction. Int. J. Solids Struct. 151, 20–44 (2018)
Shen, F., Münstermann, S., Lian, J.: An evolving plasticity model considering anisotropy, thermal softening and dynamic strain aging. Int. J. Plast 132, 102747 (2020)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Shen, F., Xu, H., Münstermann, S., Lian, J. (2024). Temperature-Dependent Plasticity and Fracture Properties of Modern BCC Steels. In: Mocellin, K., Bouchard, PO., Bigot, R., Balan, T. (eds) Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity. ICTP 2023. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-40920-2_50
Download citation
DOI: https://doi.org/10.1007/978-3-031-40920-2_50
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-40919-6
Online ISBN: 978-3-031-40920-2
eBook Packages: EngineeringEngineering (R0)