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Magnetic Evaluation of Tensile Deformation Behaviour of TRIP Assisted Steels

  • J. N. MohapatraEmail author
  • Arbind Kumar Akela
Article
  • 7 Downloads

Abstract

Two grades (690 and 980 MPa) of Transformation Induced Plasticity (TRIP) assisted steels were tensile-deformed to various strain levels to find the effect of tensile deformation on the mechanical properties of the steels. Brinell hardness was measured to find the hardening behaviour of the tensile-deformed steels. Magnetic Barkhausen Emissions (MBE) and magnetic hysteresis loop measurements were carried out on the specimens for the correlation of magnetic properties with the mechanical properties of the steels for their non-destructive magnetic evaluations. Coercivity and hardness were found to increase with the increase in plastic strain indicating work hardening of the steels whereas a continuous decrease in Root Mean Square (RMS) voltage of the MBE was found after an early increase. The early increase in RMS voltage of the MBE is due to the stress relaxation effect on the early stage of plastic deformation. A strong correlation was found between the coercivity and hardness of the steels indicating the potential application of the magnetic technique for the non-destructive evaluation of deformation behaviour of TRIP steels.

Keywords

TRIP assisted steels Tensile deformation Microstructure Magnetic properties Hardness Non-destructive evaluation 

References

  1. 1.
    Luo, L., Li, W., Wang, L., Zhou, S., Jin, X.: Tensile behaviours and deformation mechanism of a medium Mn-trip steel at different temperatures. Mater Sci & Eng A. 682, 698–703 (2017)CrossRefGoogle Scholar
  2. 2.
    Bhargava, M., Shanta, C., Asim, T., Sushil, M.: Texture developed during deformation of Transformation Induced Plasticity (TRIP) steels. 17th Int. Conf. on Textures of Mater., (ICOTOM 17). IOP Conf Series 82, 012067 (2015).  https://doi.org/10.1088/1757-899X/82/1/012067 CrossRefGoogle Scholar
  3. 3.
    Pruger, S., Gandhi, A., and Balzani, D.: Modeling of low-alloyed TRIP-steels based on direct micro-macro simulations, ECCOMAS Congress 2016, VII European Congress on Computational Methods in Appl. Sci. and Eng. M. Papadrakakis, V. Papadopoulos, G. Stefanou, V. Plevris (eds.) Crete Island, Greece, 5–10 June 2016Google Scholar
  4. 4.
    Khan, M.I., Kuntz, M.L., Zhou, Y.: Effects of weld microstructure on static and impact performance of resistance spot welded joints in advanced high strength steels. Sci Technol Weld Join. 13, 294–304 (2008)CrossRefGoogle Scholar
  5. 5.
    Tetsuya, M., Kohei, H., Hidetaka, K.: Ultra high- strength steel sheets for bodies, reinforcement parts and sear frame parts of automobile ultra high-strength steel sheets leading to great improvement in crashworthiness. JFE Technical Report, No. 4, Nov 2004Google Scholar
  6. 6.
    Sourabh, C.: Transformations in TRIP-assisted steels; Microstructure and properties. Thesis, Darwin College, University of Cambridge Nov (2006)Google Scholar
  7. 7.
    Grajcar, A., Opiela, M.: Influence of plastic deformation on CCT-diagrams of low-carbon and medium carbon TRIP steels. J Achiev Mater Manuf Eng. 29, 71–78 (2008)Google Scholar
  8. 8.
    Park, K.K., Oh, S.T., Baeck, S.M., Kim, D.I., Han, J.H., Han, H.N., Park, S.-H., Lee, C.G., Kim, S.-J., Oh, K.H.: In-situ deformation behaviour of retained austenite on TRIP steel. Mater. Sci. Forum 408–412, 571–576 (2002)CrossRefGoogle Scholar
  9. 9.
    Harjo, S., Tsuchida, N., Abe, J., Gong, W.: Martensite phase stress and the strengthening mechanism in TRIP steel by neutron diffraction. Sci Rep. 7, 15149 (2017).  https://doi.org/10.1038/s41598-017-15252-5 CrossRefGoogle Scholar
  10. 10.
    Hanzaki, A.Z., Hodgson, P.D., Yue, S.: The influence of bainite on retained austenite characteristics in Si-Mn TRIP steels. ISIJ Int. 35, 324–331 (1995)CrossRefGoogle Scholar
  11. 11.
    Hristoforou, E., Ktena, A., Vourna, P., Argiris, K.: Dependence of magnetic permeability on residual stresses in alloyed steels. AIP Adv. 8, 047201 (2018)CrossRefGoogle Scholar
  12. 12.
    Kouli, M.E., Giannakis, M.: Stress state evaluation in low carbon and TRIP steels by magnetic permeability. IC-MAST2015. IOP Conf. Series 108, 012013 (2016).  https://doi.org/10.1088/1757-899X/108/1/012013 CrossRefGoogle Scholar
  13. 13.
    Istvan, M.: Magnetic characterization of phase transformation in TRIP steels. J Elec Eng. 59, 86–89 (2008)Google Scholar
  14. 14.
    Miguel, V., Avellaneda, F. J., Coello, J., Martínez, A., Calatayud, A.: Evaluation of the strain-induced martensite of TRIP 800 steel by magnetic induction. AIP Conference Proceedings, 2012;, vol. 1431, p. 82 (2012).  https://doi.org/10.1063/1.4707553
  15. 15.
    Callahan, M., Hubert, O., Schmitt, J-H.: Quantification of TRIP kinetics in medium Mn steels by in situ magnetic measurements. HAL Id: hal-01560742. https://hal.archivesouvertes.fr/hal-01560742 (2017). Accessed 22 Mar 2018
  16. 16.
    Miguel-Eguia, V., Avellaneda, F.J., Coello, J., Martínez, A., Calatayud, A.: A procedure based on magnetic induction to evaluate the effect of plastic deformation by multiaxial stresses on TRIP steels. Mater. Sci. Forum 713, 1–6 (2012).  https://doi.org/10.4028/www.scientific.net/MSF.713 CrossRefGoogle Scholar
  17. 17.
    Zhao, L., Van, D.N.H., Bruck, E., Sietsma, J., Van der Zwaag, S.: Magnetic and X-Ray diffraction measurements for the determination of retained austenite in TRIP steels. Mater. Sci. Eng., A 313, 145–152 (2001)CrossRefGoogle Scholar
  18. 18.
    Mohapatra, J.N., Kumar, S., Akela, A.K., Rao, S.P., Kaza, M.: Magnetic hysteresis loop as a tool for the evaluation of microstructure and mechanical properties of DP steel. J Mater Eng Perf. 25, 2318–2325 (2016)CrossRefGoogle Scholar
  19. 19.
  20. 20.
    ftp://ftp.technofour.com/pub/catalogs/MagStar.pdf (2017). Accessed 21 Oct 2017Google Scholar

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.JSW Steel LtdBellaryIndia

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