Manufacturing Technology 2012, 12(2):222-227 | DOI: 10.21062/ujep/x.2012/a/1213-2489/MT/12/2/222

Influence of microstructural heterogeneities on capacity to absorb energy of dual-phase steels

Gejza Rosenberg1, Iveta Sinaiová1, Ľuboš Juhár2
1 Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic
2 Unit GM for Research USSE, U. S. Steel Košice, s. r. o, Vstupný areál US Steel Košice, 044 54 Košice, Slovak Republic

The effect of microstructural banding (or so called segregation bands) on energy absorption capacity of dual-phase steels (DP steels) was examined by product of tensile strength and uniform elongation (TS×UE), as well as by Charpy V-notch impact test. A series of DP steels with different volume fractions of martensite (VFM) was prepared by intercritical annealing at temperatures ranging 740 to 840 °C. It was found that increasing of VFM has an inverse effect on values TS×UE and notch toughness. The results on samples with a notch and pre-cycled crack showed that presence of segregation bands influences capacity of steels to absorb the energy in initial stage as well as in stage of crack propagation.

Keywords: dual phase steel, microstructural banding, energy absorption capacity

Published: December 1, 2012  Show citation

ACS AIP APA ASA Harvard Chicago IEEE ISO690 MLA NLM Turabian Vancouver
Rosenberg G, Sinaiová I, Juhár Ľ. Influence of microstructural heterogeneities on capacity to absorb energy of dual-phase steels. Manufacturing Technology. 2012;12(2):222-227. doi: 10.21062/ujep/x.2012/a/1213-2489/MT/12/2/222.
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open article abstract

    References

    1. http://www.autosteel.org/~/media/Files/Autosteel/Research/Lightweighting/future_generation_passenger_compartment.ashx.org
    2. KONIECZNY A.: On Formability Assessment of the Automotive Dual-Phase Steels, https://shop.sae.org/technical/papers/2001-01-3075
    3. CHAKRABORTI, P.C., MITRA, M.K.: Microstructure and tensile properties of high strength duplex ferrite-martensite (DFM) steels, Materials Science and Engineering A 466 (2007) 123-133 Go to original source...
    4. MAZINANI, M., and POOLE, W.J.: Effect of Martensite Plasticity on the Deformation Behavior of a Low-Carbon Dual-Phase Steel, Metall. Mater. Trans. A, 38A (2007) 2 328-339 Go to original source...
    5. SUN, S., PUGH, M.: Properties of thermomechanically processed dual-phase steels containing fibrous martensite, Materials Science and Engineering A335 (2002) 298-308 Go to original source...
    6. AVRAMOVIC-CINGARA, G., SALEH, Ch.A.R., JAIN, M.K. and WILKINSON, D.S.: Void Nucleation and Growth in Dual-Phase Steel 600 during Uniaxial Tensile Testing, Metall. Trans. A, 40A (2009) 12 3117-3127 Go to original source...
    7. JUHAR, Ľ.: Influence of temperature-deformation conditions during rolling on multi-phase steels structure creation and their properties, PhD Thesis, Technical University in Košice, Košice 2009 (in Slovak)
    8. VERHOEVEN, J. D.: A Review of Microsegregation Induced Banding Phenomena in Steels, JMEPEG 9 (2000) 3 286-296 Go to original source...
    9. CABALLERO, F.G., GARCÍA-JUNCEDA, A., CAPDEVILA, C. and GARCÍA de ANDRÉS, C.: Evolution of Microstructural Banding during the Manufacturing Process of Dual Phase Steels, Materials Transactions, 47 (2006) 9 2269 to 2276 Go to original source...
    10. YURIOKA, N.: Weldability calculation, http://homepage3.nifty.com/yurioka/exp.html. Accessed November 18 2008.XX
    11. BURÍKOVA, K.: Microstructural nature of multiphase steels, PhD Thesis, Institute of Material Research, SAS in Košice, Košice 2009 (in Slovak)
    12. DELINCÉ, M., BRÉCHET, Y., EMBURY, J.D., GEERS, M.G.D., JACQUES, P.J., PARDOEN, T.: Structure-property optimization of ultrafine-grained dual-phase steels using a microstructure-based strain hardening model, Acta Materialia 55 (2007) 2337-2350 Go to original source...
    13. BAG A., RAY, K., DWARAKADASA, E.S.: Influence of Martensite Content and Morphology on Tensile and Impact Properties of High-Martensite Dual-Phase Steels Metall. Mater. Trans. 30A (1999) 1193-1202 Go to original source...
    14. ROSENBERG, G.: The influence of grain size temperature and stress state on brittle fracture of steel, Kovové materiály,(1996) 4 201-216.

    Return to the content