Manufacturing Technology 2017, 17(6):881-887 | DOI: 10.21062/ujep/x.2017/a/1213-2489/MT/17/6/881

The Effect of Annealing Temperature on Microstructure and Mechanical Properties of Lightweight Steel with Increased Aluminium Content

Ludmila Kučerová, Martin Bystrianský, ©těpán Jeníček
Regional Technological Institute, University of West Bohemia in Pilsen, Univerzitní 8, 30614 Plzeň. Czech Republic

A demand for enlightening of constructions in an automotive industry resulted in an intensive development of high strength steels and in attempts to decrease the weight of the steel by intensive alloying by lighter elements. This work used chemical concept of AHSS (advanced high strength steel) TRIP (transformation induced plasticity) steel with 0.2%C and micro-alloyed by 0.06%Nb and increased manganese content to 4% and aluminium to 6.5% to produce lightweight steel, which was cast and re-forged and subsequently annealed at various temperatures in the range of 300°C - 800°C. The resulting microstructures were analysed by light microscopy, laser scanning confocal microscopy, scanning electron microscopy and X-ray diffraction phase analysis and mechanical properties were measured by a tensile test. Tensile strengths in the region of 600 MPa - 757 MPa and total elongations around 20% were obtained for annealed samples.

Keywords: aluminium alloyed steel, light-weight steel, annealing, microstructure

Published: December 1, 2017  Show citation

ACS AIP APA ASA Harvard Chicago IEEE ISO690 MLA NLM Turabian Vancouver
Kučerová L, Bystrianský M, Jeníček ©. The Effect of Annealing Temperature on Microstructure and Mechanical Properties of Lightweight Steel with Increased Aluminium Content. Manufacturing Technology. 2017;17(6):881-887. doi: 10.21062/ujep/x.2017/a/1213-2489/MT/17/6/881.
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. KUČEROVÁ, L., BYSTRIANSKÝ, M., JENÍČEK, M., FRANCISKO, P. (2017). Effect of deformation conditions on microstructure and mechanical properties of low alloyed steel, In: Manufacturing Technology, Vol. 17, No. 5, 752-756. Go to original source...
    2. KUČEROVÁ, L., JIRKOVÁ, H., KÁŇA, J. (2016). The suitability of 42SiCr steel for Quenching and Partitioning Process. In: Manufacturing Technology, Vol. 16, No. 5, 984-989. Go to original source...
    3. WU, Z. Q. DING, H., AN, X.H., HAN, D., LIAO, X.Z. (2015). Influence of Al content on the strain-hardening behaviour of aged low density Fe-Mn-Al-C steels with high Al content. In: Materials Scinece and Engineering A, Vol. 639, 187-191. Go to original source...
    4. SUH, Dong-Woo, KIM, Nack J. (2013). Low-density steels. In: Scripta Materialia, Vol. 68, 337-338. Go to original source...
    5. KIM, H., SUH, D.-W., FIM, N.J. (2013). Fe-Al-Mn-C lightweight structural alloys: a review on the microstructures and mechanical properties, In: Sci. Technol. Adv. Mater., Vol. 14, 1-11. Go to original source...
    6. RANNA, R., LIU, C., RAY, R.K. (2014). Evolution of microstructure and mechanical properties during thermomechanical processing of a low-density multiphase steel for automotive application, In: Acta materialia, Vol. 75, 227-245. Go to original source...
    7. XUA, R-CH., et al. (2017). Microstructures and mechanical properties of ferrite-based lightweight steel with different compositions, In: Journal of Iron and Steel Research, International, Vol. 24, Is. 7, 737-742. Go to original source...
    8. CHOO, W.K., KIM, J.H., YOON, Y.C. (1997). Microstructural change in austenitic Fe-30.0wt%Mn-7.8wt%Al-1.3wt%C initiated by spinodal decomposition and its influence on mechanical properties In: Acta Mater, Vol. 45, 4877. Go to original source...
    9. LU, W.J., ZHAND, X.F. QIN, R.S. (2015). K-carbide hardening in a low-density high-Al high-Mn multiphase steel, In: Materials Letters, Vol. 138, 96-99. Go to original source...
    10. SOHN, S.S., SONG, H., SUH, B.-C., KWAK, J.-H., LEE, B.-J., KIM, N.J., LEE, S. (2015). Novel ultra-high-strength (ferrite + austenite) duplex lightweight steels achieved by fine dislocation substructures (Taylor lattices), grain refinement, and partial recrystallization, In: Acta Mater., Vol. 96, 301-310. Go to original source...
    11. FROMMEYER, G. (2006). Microstructures and Mechanical Properties of High-Strength Fe-Mn-Al-C Light-Weight TRIPLEX Steels, In: Steel Res Int, Vol. 77, 627. Go to original source...
    12. JOHANSSON, J., ODEN, M., ZHENG, X.H. (1999). Evolution of the residual stress state in a duplex stainless steel during loading, In: Acta Mater, Vol. 47, 2669. Go to original source...
    13. PARK, S.J., et al. (2013). Microstructure and tensile behaviour of duplex low-density steel containing 5 mass % aluminium, In: Scripta Materialia, Vol. 68, 365-369. Go to original source...
    14. SEO, C-H., et al. (2011). Effect of Carbon Content on Cracking Phenomenon Occurring during Cold Rolling of Three Light-Weight Steel Plates, In: Metall. Mater. Trans., Vol. 42A, 138-146. Go to original source...
    15. KUZIAK, R., KAWALLA, R., WAENGLER, S. (2008). Advanced high strength steels for automotive industry, In: Arch. Civ. Mech. Eng., Vol. 8, 103-117. Go to original source...
    16. LU, W.J., QIN, R.S. (2016). Influence of κ-carbide interface structure on the formability of lightweight steels, In: Materials and Design, Vol. 104, 211-216. Go to original source...
    17. LEE, S., JEONG, J., LEE, Y.-K. (2015). Precipitation and dissolution behavior of k-carbide during continuous heating in Fe-9.3Mn-5.6Al-0.16C lightweight steel, In: Journal of Alloys and Compounds, Vol. 648, 149-153. Go to original source...
    18. SEOL, J.-B., RAABE, D., CHOI, P., PARK, H.-S., KWAKC, J.-H., PARK, CH.-G. (2013). Direct evidence for the formation of ordered carbides in a ferrite-based low-density Fe-Mn-Al-C alloy studied by transmission electron microscopy and atom probe tomography. In: Scripta Materialia, Vol. 68, 348-353. Go to original source...

    Return to the content