Effect of electric current density on the mechanical property of advanced high strength steels under quasi-static tensile loads

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• 作者：Min-Sung Kim (1)
  Nguyen Thai Vinh (1)
  Hyeong-Ho Yu (1)
  Sung-Tae Hong (1)
  Hyun-Woo Lee (2)
  Moon-Jo Kim (3)
  Heung Nam Han (3)
  John T. Roth (4)
  
• 关键词：Advanced high strength steels ; Electric current density ; Mechanical property ; Springback
• 刊名：International Journal of Precision Engineering and Manufacturing
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：15
• 期：6
• 页码：1207-1213
• 全文大小：
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  2. Conrad, H., 鈥淓ffects of Electric Current on Solid State Phase Transformations in Metals鈥?Materials Science and Engineering: A, Vol. 287, No. 2, pp. 227鈥?37, 2000. CrossRef
  3. Conrad, H., 鈥淓lectroplasticity in Metals and Ceramics鈥?Materials Science and Engineering: A, Vol. 287, No. 2, pp. 276鈥?87, 2000. CrossRef
  4. Ross, C. D., Irvin, D. B., and Roth, J. T., 鈥淢anufacturing Aspects Relating to the Effects of Direct Current on the Tensile Properties of Metals鈥?Journal of Engineering Materials and Technology, Vol. 129, No. 2, pp. 342鈥?47, 2007. CrossRef
  5. Perkins, T. A., Kronenberger, T. J., and Roth, J. T., 鈥淢etallic Forging using Electrical Flow as an Alternative to Warm/Hot Working鈥?Journal of Manufacturing Science and Engineering, Vol. 129, No. 1, pp. 84鈥?4, 2007. CrossRef
  6. Roth, J. T., Loker, I., Mauck, D., Warner, M., Golovashchenko, S., and Krause, A., 鈥淓nhanced Formability of 5754 Aluminum Sheet Metal using Electric Pulsing鈥?Transactions of the North American Manufacturing Research Institute of SME, Vol. 36, pp. 405鈥?12, 2008.
  7. Green, C. R., McNeal, T. A., and Roth, J. T., 鈥淪pringback Elimination for Al-6111 Alloys using Electrically-Assisted Manufacturing (EAM)鈥?Transactions of the North American Manufacturing Research Institute of SME, Vol. 37, No. pp. 2009, 2009.
  8. Salandro, W. A., Khalifa, A., and Roth, J. T., 鈥淭ensile Formability Enhancement of Magnesium AZ31B-O Alloy using Electrical Pulsing鈥?Transacrions, North American Manufacturing Research Institute of the Society of Manufacturing Engineers, Vol. 37, pp. 387鈥?94, 2009.
  9. Salandro, W. A., Hong, S. -T., Smith, M. T., Jones, J. J., McNeal, T. A., and Roth, J. T., 鈥淔ormability of Al 5xxx Sheet Metals using Pulsed Current for Various Heat Treatments鈥?Journal of Manufacturing Science and Engineering, Vol. 132, No. 5, Paper No. 051016, 2010.
  10. Roh, J. H., Seo, J. J., Hong, S. -T., Kim, M. J., Han, H., N., and Roth, J. T., 鈥淭he Mechanical Behavior of 5052-H32 Aluminum Alloys under a Pulsed Electric Current鈥?International Journal of Plasticity, Vol. 58, pp. 84鈥?9, 2014. CrossRef
  11. Kim, M. J., Lee, K., Oh, K. H., Choi, I. S., Yu, H. H., and et al., 鈥淓lectric Current-Induced Annealing during Uniaxial Tension of Aluminum Alloy鈥?Scripta Materialia, Vol. 75, No. 15, pp. 58鈥?1, 2014. CrossRef
  12. Petrov, R., Kestens, L., Wasilkowska, A., and Houbaert, Y., 鈥淢icrostructure and Texture of a Lightly Deformed TRIP-Assisted Steel Characterized by Means of the EBSD Technique鈥?Materials Science and Engineering: A, Vol. 447, No. 1, pp. 285鈥?97, 2007. CrossRef
  13. Belyakov, A., Kimura, Y., and Tsuzaki, K., 鈥淢icrostructure Evolution in Dual-Phase Stainless Steel during Severe Deformation鈥?Acta Materialia, Vol. 54, No. 9, pp. 2521鈥?532, 2006. CrossRef
  
• 作者单位：Min-Sung Kim (1)
  Nguyen Thai Vinh (1)
  Hyeong-Ho Yu (1)
  Sung-Tae Hong (1)
  Hyun-Woo Lee (2)
  Moon-Jo Kim (3)
  Heung Nam Han (3)
  John T. Roth (4)
  
  1. School of Mechanical Engineering, University of Ulsan, Ulsan, South Korea
  2. Innovative engineering team, MS-Autotech Company, Anyang, South Korea
  3. Department of Materials Science & Engineering and Center for Iron & Steel Research, RIAM, Seoul National University, Seoul, South Korea
  4. School of Engineering, Mechanical Engineering, Penn State Erie, The Behrend College, Erie, PA, USA
  
• ISSN：2005-4602

文摘

The effect of a single pulse of electric current on the mechanical property of advanced high strength steels (AHSS) under quasi-static tensile loads is investigated by experiments. During a typical quasi-static tensile test, electric current is applied to a specimen for a short duration (less than 1 second) while the specimen is in plastic region. The stress-strain curve shows that the flow stress almost instantly decreases significantly (stress-drop) when the electric current is applied, while the tensile strength from the following stress-strain curve after the short pulse of electric current is not changed much. The experimental result suggests that the stress-drop at the moment of a short pulse of electric current can be effectively used to reduce the springback of material, as successfully demonstrated in the present study.