Abstract
The quasi-static tensile electroplasticity of 1180CP ultra-high strength steels (UHSS) is experimentally investigated. A single pulse of electric current with a short duration less than 0.5 sec is applied to the specimen under tensile plastic loading. The experimental result shows that flow stress of the UHSS nearly instantly drops at moment of electric current, followed by strain hardening until necking of the specimen. Empirical models to describe the instantaneous stress-drop without effect of thermal expansion at the electric current and the hardening behavior after electric current are suggested as functions of applied electric energy density.
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Matsuoka, S., Hasegawa, K., and Tanaka, Y., “Newly-Developed Ultra-High Tensile Strength Steels with Excellent Formability and Weldability,” JFE Technical Report, Vol. 12, pp. 13–18, 2007.
Salandro, W., Khalifa, A., and Roth, J., “Tensile Formability Enhancement of Magnesium AZ31B-O Alloy Using Electrical Pulsing,” North American Manufacturing Research Institution of SME, Vol. 37, pp. 387–394, 2009.
Hartl, C., “Research and Advances in Fundamentals and Industrial Applications of Hydroforming,” Journal of Materials Processing Technology, Vol. 167, No. 2, pp. 383–392, 2005.
Luo, M., Dunand, M., and Mohr, D., “Experiments and Modeling of Anisotropic Aluminum Extrusions under Multi-Axial Loading-Part II: Ductile Fracture,” International Journal of Plasticity, Vol. 32, pp. 36–58, 2012.
Golovashchenko, S. and Krause, A., “Improvement of Formability of 6xxx Aluminum Alloys Using Incremental Forming Technology,” Journal of Materials Engineering and Performance, Vol. 14, No. 4, pp. 503–507, 2005.
Troitskii, O., “Electromechanical Effect in Metals,” ZhETF Pisma Redaktsiiu, Vol. 10, pp. 18–22, 1969.
Conrad, H., “Effects of Electric Current on Solid State Phase Transformations in Metals,” Materials Science and Engineering: A, Vol. 287, No. 2, pp. 227–237, 2000.
Conrad, H., “Electroplasticity in Metals and Ceramics,” Materials Science and Engineering: A, Vol. 287, No. 2, pp. 276–287, 2000.
Kim, M.-J., Lee, K., Oh, K. H., Choi, I.-S., Yu, H.-H., et al., “Electric Current-Induced Annealing during Uniaxial Tension of Aluminum Alloy,” Scripta Materialia, Vol. 75, pp. 58–61, 2014.
Ross, C. D., Kronenberger, T. J., and Roth, J. T., “Effect of DC on the Formability of Ti-6Al-4V,” Journal of Engineering Materials and Technology, Vol. 131, No. 3, Paper No. 031004, 2009.
Jones, J. J. and Roth, J. T., “Effect on the Forgeability of Magnesium AZ31B-O When Continuous DC Electricity is Applied,” Proc. of the ASME International Manufacturing Science and Engineering Conference, pp. 589–598, 2009.
Perkins, T. A., Kronenberger, T. J., and Roth, J. T., “Metallic Forging Using Electrical Flow as an Alternative to Warm/Hot Working,” Journal of Manufacturing Science and Engineering, Vol. 129, No. 1, pp. 84–94, 2007.
Andrawes, J. S., Heigel, J. C., Roth, J. T., and Warley, R. L., “Effects of DC Current on the Stress-Strain Curve and Hardness of 6061 T6511 Aluminum,” Proc. of the ASME International Mechanical Engineering Congress and Exposition, pp. 169–178, 2004.
Ross, C. D., Irvin, D. B., and Roth, J. T., “Manufacturing Aspects Relating to the Effects of Direct Current on the Tensile Properties of Metals,” Journal of Engineering Materials and Technology, Vol. 129, No. 2, pp. 342–347, 2007.
Roth, J., Loker, I., Mauck, D., Warner, M., Golovashchenko, S., et al., “Enhanced Formability of 5754 Aluminum Sheet Metal Using Electric Pulsing,” North American Manufacturing Research Institution of SME, Vol. 36, pp. 405–412, 2008.
Salandro, W. A., Jones, J. J., McNeal, T. A., Roth, J. T., Hong, S.-T., et al., “Formability of Al 5xxx Sheet Metals Using Pulsed Current for Various Heat Treatments,” Journal of Manufacturing Science and Engineering, Vol. 132, No. 5, Paper No. 051016, 2010.
Roh, J.-H., Seo, J.-J., Hong, S.-T., Kim, M.-J., Han, H. N., et al., “The Mechanical Behavior of 5052-H32 Aluminum Alloys under a Pulsed Electric Current,” International Journal of Plasticity, Vol. 58, pp. 84–99, 2014.
Kinsey, B., Cullen, G., Jordan, A., and Mates, S., “Investigation of Electroplastic Effect at High Deformation Rates for 304SS and Ti-6Al-4V,” CIRP Annals-Manufacturing Technology, Vol. 62, No. 1, pp. 279–282, 2013.
McNeal, T. A., Beers, J. A., and Roth, J. T., “The Microstructural Effects on Magnesium Alloy AZ31B-O While Undergoing an Electrically-Assisted Manufacturing Process,” Proc. of the ASME International Manufacturing Science and Engineering Conference, pp. 641–650, 2009.
Zhang, D., To, S., Zhu, Y., Wang, H., and Tang, G., “Dynamic Electropulsing Induced Phase Transformations and Their Effects on Single Point Diamond Turning of AZ91 Alloy,” Journal of Surface Engineered Materials and Advanced Technology, Vol. 2, No. 1, pp. 16–21, 2012.
Yu, W. P., Qin, R. S., and Wu, K. M., “The Effect of Hot-and Cold-Rolling on the Electropulse-Induced Microstructure and Property Changes in Medium Carbon Low Alloy Steels,” Steel Research International, Vol. 84, pp. 1–7, 2012.
Bunget, C., Salandro, W., Mears, L., and Roth, J. T., “Energy-Based Modeling of an Electrically-Assisted Forging Process,” North American Manufacturing Research Institution of SME, Vol. 38, pp. 647–654, 2010.
Salandro, W. A., Bunget, C., and Mears, L., “Electroplastic Modeling of Bending Stainless Steel Sheet Metal Using Energy Methods,” Journal of Manufacturing Science and Engineering, Vol. 133, No. 4, Paper No. 041008, 2011.
Jones, J. J. and Mears, L., “Thermal Response Modeling of Sheet Metals during Electrically-Assisted Forming,” Journal of Manufacturing Science and Engineering, Vol. 135, No. 2, Paper No. 021011-5, 2013.
Magargee, J., Morestin, F., and Cao, J., “Characterization of Flow Stress for Commercially Pure Titanium Subjected to Electrically Assisted Deformation,” Journal of Engineering Materials and Technology, Vol. 135, No. 4, Paper No. 041003, 2013.
Hong, S.-T. and Weil, K. S., “Niobium-Clad 304L Stainless Steel PEMFC Bipolar Plate Material: Tensile and Bend Properties,” Journal of Power Sources, Vol. 168, No. 2, pp. 408–417, 2007.
Kim, M.-S., Vinh, N. T., Yu, H.-H., Hong, S.-T., Lee, H.-W., et al., “Effect of Electric Current Density on the Mechanical Property of Advanced High Strength Steels under Quasi-Static Tensile Loads,” Int. J. Precis. Eng. Manuf., Vol. 15, No. 6, pp. 1207–1213, 2014.
Hariharan, K., Lee, M.-G., Kim, M.-J., Han, H. N., Kim, D., et al., “Decoupling Thermal and Electrical Effect in an Electrically Assisted Uniaxial Tensile Test Using Finite Element Analysis,” Metallurgical and Materials Transactions A, Vol. 46, No. 7, pp. 3043–3051, 2015.
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This paper was presented at ISGMA2016
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Thien, N.T., Jeong, YH., Hong, ST. et al. Electrically assisted tensile behavior of complex phase ultra-high strength steel. Int. J. of Precis. Eng. and Manuf.-Green Tech. 3, 325–333 (2016). https://doi.org/10.1007/s40684-016-0041-3
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DOI: https://doi.org/10.1007/s40684-016-0041-3