Effect of Pulsed Electric Current on the Tensile Properties of DP Type Ultra-High Strength Steel Sheets

Jung Han Song; J. Lee; I. Hwang; Y.B. Kim; S. Choi; G.A. Lee; M.J. Kang

doi:10.4028/www.scientific.net/AMM.389.284

Paper Titles

Wavelet Finite Element Method Analysis of Bending Plate Based on Hermite Interpolation
p.267

Bulk-Sheet Forming Process for Products with Thin Wall and Thick Rim
p.273

Evaluation of Residual Iron of Carbon Nanotubes Treated by Acid
p.277

The Research on Deep and Narrow Groove Grinded by Diamond Wheel
p.281

Effect of Pulsed Electric Current on the Tensile Properties of DP Type Ultra-High Strength Steel Sheets
p.284

Dynamic Fracture Toughness: Critical Review of Materials and Developments
p.289

Performance Enhancement and Applications of Ionic Polymer Metal Composites (IPMC) - A Review
p.298

Abrasive Granularity Impact on Water Jet Technology Head Vibrations during Cutting Steel
p.304

Study on Manufacturing Technology of High-Strength Composite Board
p.310

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 389Effect of Pulsed Electric Current on the Tensile...

Effect of Pulsed Electric Current on the Tensile Properties of DP Type Ultra-High Strength Steel Sheets

Abstract:

Although ultra-high strength steel (UHSS) sheets with tensile stress above 1.0 GPa have a great attention in the automotive industries for reducing the weight and improving fuel efficiency of auto-body, the poor formability of UHSS sheets is one of the main factors hindering their industrial application. Enhancing the formability is a very important and challenging problem to both automotive and manufacturing engineers. In this study, the electro-plastic effect, which is first discovered in 1960s, of ultra-high strength steel sheets is investigated to improve the formability. To begin with, a test system is built up to carry out the tensile test with heavy electric current flowing through the specimen. The evolutions of the flow stress and the electric resistivity are obtained using this test system. The significant decrease in the flow stress caused by the heavy flowing through current is observed.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 389)

Pages:

284-288

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.389.284

Citation:

Cite this paper

Online since:

August 2013

Authors:

Jung Han Song, J. Lee, I. Hwang, Y.B. Kim, S. Choi, G.A. Lee, M.J. Kang

Keywords:

Dual Phase Steel, Electro-Plasticity, Flow Stress Drop, Pulsed Electric Current

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] Information on http: /www. worldautosteel. org.

Google Scholar

[2] W.A. Salandro, J. J. Jones, T. A. NcNeal, J.T. Roth, S-T. Hong and M. T. Smith, in: Effect of Electrical Pulsing on Various Heat Treatments of 5XXX series Aluminum Alloys, Proceedings of the 2012 Design of Medical Devices Conference, AIP (2012).

DOI: 10.1115/msec_icmp2008-72512

Google Scholar

[3] O.A. Troitskii: Pis'ma v Zh. Eksp. Teor. Fiz. Vol. 10 (1969), p.18.

Google Scholar

[4] H. Conrad, J. White, W.D. Cao, X.P. Lu and A. Sprecher: Mater. Sci. Eng. A Vol. 145 (1991), p.1.

Google Scholar

[5] H. Conrad: Mater. Sci. Eng. A Vol. 287 (2000), p.276.

Google Scholar

[6] T.A. Perkins, T.J. Kronenberger and J.T. Roth: J. Manuf. Sci. Eng. -Trans. ASME Vol. 129 (2007), p.84.

Google Scholar

[7] Y.Z. Zhou, S.R. Qin, S.H. Xiao, G.H. He and B.L. Zhou: J. Mater. Res. Vol. 15 (2000) p.1056.

Google Scholar

[8] J.H. Sung, J.H. Kim and R.H. Wagoner: Int. J. Plast. Vol. 26 (2010) p.1746.

Google Scholar