Abstract
The effects of pulse current on the microstructure and mechanical properties of two kinds of ultrahigh-strength steels (UHSS) were studied by electrically assisted tension tests. The elongation of the two UHSS (MS1300 and QP980) moderately increases at relatively low current density, while their microstructures keep almost unchanged. For MS1300 steel, the elongation can be increased from 8.3% at room temperature to 12.4% at the current density of 6.58 A/mm2. The peak stress of QP980 is reduced to 900 MPa at the current density of 7.46 A/mm2, and the elongation is increased from 22.3% at room temperature to 38.4%. If the current density is further increased, the tensile strengths of UHSS are greatly reduced. Meanwhile, their microstructures are also obviously varied. Therefore, the appropriate current density should be selected in order to maintain the UHSS grades.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Liu C, Wang L, Liu Y (2012) Development of advanced high-strength steel used for automobile and its application in body design. Spec Steel Technol 18(2):1–4
Lin ZG (2016) Research progress and present technique application situation of advanced high-strength automobile steel sheet. Hebei Metallurgy
Li Y, Liu HW, Du YH (2011) Applications and developments of AHSS in automobile industry. Mater Rev 25:101–116
Ding JH, Li H, Bian TJ (2018) Electroplasticity and electrically-assisted forming: a critical review. Acta Aeronautica et Astronautica Sinica. 39(1):15–32
Li XH (2015) Effect of pulse current on the microstructure and properties of different initial state 40Cr steels. Jilin University
Bunget CJ, Salandro WA, Mears L (2013) Thermomechanical modeling sensitivity analysis of electrically assisted forming. Proc Inst Mech Eng, Part B: J Eng Manuf 227(8):1089–1098
Li XF, Zhou Q, Zhao SJ, Chen J (2014) Effect of pulse current on bending behavior of Ti6Al4 V alloy. Procedia Eng 81:1799–1804
Jiang B, Yang WB, Zhang ZY, Li XF, Ren XP, Wang YQ (2020) Numerical simulation and experiment of electrically-assisted incremental forming of thin TC4 titanium alloy sheet. Materials 13(6):1335
Zhu XD, Xue P, Li W (2017) Status of the development and application of Baosteel’s cold rolled martensitic steel sheets. Baosteel Technology
Xie HY, Dong XH, Liu K (2015) Experimental investigation on electroplastic effect of DP980 advanced high strength steel. Mater Sci Eng A 637:23–28
Lin X, Zhang QD (2017) Constitutive model of HC1150/1400MS martensitic steel at high temperature. Heat Treat Met 42(10):197–202
Liu SF (2009) Grain boundary martensite formation and tempering brittleness at low temperature of steels. Hebei University of Technology
Song PC, Li XF, Ding W, Chen J (2014) Electroplastic tensile behavior of 5A90 Al-Li alloys. Acta Metallurgica Sinica (English Letters). 27(4):642–648
Li XF, Ji BY, Zhou Q, Chen J, Gao P (2016) Influence of grain size on electrically-assisted tensile behavior of Ti-6Al-4V alloy. J Mater Eng Perform 25(10):4514–4520
Acknowledgments
This work was supported by NSFC-Liaoning Province United Foundation (No. U1908229) and Equipment Pre-research Fund (No. 61409230408). The authors are grateful for this financial support.
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
Chen, X., Xu, D., Shi, L., Xiao, H., Li, X., Chen, J. (2021). Effect of Pulse Current on Mechanical Properties and Microstructure of Ultrahigh-Strength Steel. 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_72
Download citation
DOI: https://doi.org/10.1007/978-3-030-75381-8_72
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)