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Charpy Impact Fracture Energy and Ductile-Brittle Transition Temperature of Dual-Phase 590 Steel
Technical Paper
2005-01-1413
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Advanced High strength steels (AHSS) have been introduced and gradually adopted in vehicle structures as lightweight materials in the past years. Engineering performance of AHSS in many areas have shown that they are superior to the conventional steels such as mild steel, IF (interstitial-free) steel or even HSLA (high strength, low alloy) steel. In this paper, we present the results from Charpy V-Notch impact tests on Dual Phase 590 (DP590) steel, which belongs to the family of AHSS. Tests were conducted at temperatures ranging from -120 °C (-184 °F) to 90 °C (194 °F). Specimens oriented in both L-T and T-L directions were tested. Due to its reduced thickness relative to the ASTM testing standards, specimens from a medium low carbon steel AISI-1018, having both standard and reduced thicknesses, were tested as well to justify the correction method for the DP590 data. It is shown that the ductile-brittle transition temperature (DBTT) based on 20.4 J (15 ft-lb) absorbed energy is about -95 °C (-139 °F) for DP590 which is far below the 5 °C (41 °F) of the AISI-1018 steel.
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Chao, Y., Ward, J., and Sands, R., "Charpy Impact Fracture Energy and Ductile-Brittle Transition Temperature of Dual-Phase 590 Steel," SAE Technical Paper 2005-01-1413, 2005, https://doi.org/10.4271/2005-01-1413.Also In
References
- Shaw, J.R. Zuidema, B.K. “New high Strength Steels Help Automakers Reach Future Goals for Safety, Affordability, Fuel Efficiency and Environmental Responsibility,” SAE paper 2001-01-3041
- Fekete, J.R. Stibich, A.M. Shi M.F. “A Comparison of the Response of HSLA and Dual Phase Sheet Steel in Dynamic Crush,” SAE paper 2001-01-3101
- Gaddam, R.R. “A Comparison of Static and Impact Strength of Spot Welds - Mild Steels versus Dual Phase 590 Steel,” Department of Mechanical Engineering, University of South Carolina August 2004
- ASTM Standard Test Methods for Notched Bar Impact Testing of Metallic Materials
- Wallin, K. “Upper Shelf Energy Normalization for Sub-sized Charpy-V Specimens,” International J. of Pressure Vessels and Piping 78 463 470 2001
- Lucas, G.E. Dette, G.R. Sheckherd, J.W. McConnel, P. Perrin, J. “The Use of Small Scale Specimens for Testing Irradiated Material” W.R. Corwin W.R. et. al. American Society for Testing Materials 305 1986
- Louden, B.S. Kumar, A.S. Garner, F.A. Hamilton, M.L. Hu, J. “The Influence of Specimen Size on Charpy Impact Testing of Unirradiated HT-9,” Nuclear Mater. 155 157 662 667 1988
- Schubert, L.E. Kumar, A.S. Rosinski, S.T. Hamilton, M.L. “Effect of Specimen Size on the Impact Properties of Neutron Irradiated A533B Steel,” Journal of Nuclear Materials 225 231 237 1995
- Chiang, J. Jiang, C. “Effect of Cooling Time on Fracture Toughness at the Simulated HAZ of DP600 Steels,” SAE paper 2004-01-0165
- MatWeb Material Property Data http://www.matweb.com
- Laboratory Devices Company Placerville, California
- Puzak, O. P. Eschbacher, E.W. Pellini, W. S. “Initiation and Propagation of Brittle Fracture in Structural Steels,” Welding Research Supplement Dec. 1952 569s
- Roe, G.L. Bramfitt, B.L. “Notch Toughness of Steels,” Metals Handbook, ASM International 1 10th 737 754 1996