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Identification of the Direction-Dependency of the Martensitic Transformation in Stainless Steel Using In Situ Magnetic Permeability Measurements

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Abstract

The evolution of the martensite content is monitored throughout uniaxial tensile experiments on anisotropic temper-rolled stainless steel 301LN. Several martensite content measurement techniques are discussed. It is found that micrography, basic X-ray diffraction and EBSD provide good qualitative results, but the absolute errors in the estimated absolute martensite content can be greater than 10%. Magnetic saturation induction measurements provide the spatial average of the martensite content over a large volume, which eliminates inaccuracies associated with metallographic surface preparation. Inverse magnetostriction of the ferromagnetic martensitic phase has a strong effect on the results from magnetic permeability measurements. It is critically important to remove all elastic strains before measuring the magnetic permeability. Neutron diffraction is used to quantify the residual lattice strains in the martensite after removing all macroscopic elastic strains. The results demonstrate that the linear relationship between the magnetic permeability and the martensite content holds true despite the presence of small residual strains. In situ measurements of the martensite content evolution during tensile tests along the rolling, the cross-rolling and the 45° direction of the anisotropic sheet material reveal that the transformation kinetics are independent of the loading direction in stainless steel 301LN under uniaxial tension.

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Notes

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    This output signal corresponds to the ferrite content when ferrite is the only ferromagnetic phase of the sample.

References

  1. 1.

    Jacques PJ, Furnemont Q, Lani F, Pardoen T, Delannay F (2007) Multiscale mechanics of TRIP-assisted multiphase steels: II Micromechanical modeling. Acta Mater 55(11):3695–3705

  2. 2.

    Angel T (1954) Formation of martensite in austenitic stainless steels, effect of deformation, temperature and composition. J Iron Steel Inst 177:165–174

  3. 3.

    Lecroisey F, Pineau A (1972) Martensitic transformations induced by plastic deformation in the Fe–Ni–Cr–C system. Metall Trans 3(2):387

  4. 4.

    Olson GB, Cohen M (1975) Kinetics of strain-induced martensitic nucleation. Metall Mater Trans A 6(3):791–795

  5. 5.

    Stringfellow RG, Parks DM, Olson GB (1992) A constitutive model for transformation plasticity accompanying strain-induced martensitic transformations in metastable austenitic steels. Acta Metall 40(7):1703

  6. 6.

    Greenwood GW, Johnson RH (1965) The deformation of metals under small stresses during phase transformation. Proc Roy Soc A283:403

  7. 7.

    Zhao L, van Dijk NH, Bruck E, Sietsma J, van der Zwaag S (2001) Magnetic and X-ray diffraction measurements for the determination of retained austenite in TRIP steels. Mater Sci Eng A 313(1–2):145–152

  8. 8.

    Smaga M, Walther F, Eifler D (2008) Deformation-induced martensitic transformation in metastable austenitic steels. Mater Sci Eng A 483–484:394–397

  9. 9.

    Post J, Nolles H, Datta K, Geijselaers HJM (2008) Experimental determination of the constitutive behavior of a metastable austenitic stainless steel. Mater Sci Eng A 498:179–190

  10. 10.

    Radu M, Valy J, Gourgues AF, Le Strat F, Pineau A (2005) Continuous magnetic method for quantitative monitoring of martensitic transformation in steels containing metastable austenite. Scr Mater 52:525–530

  11. 11.

    Talonen J, Aspegren P, Hanninen H (2004) Comparison of different methods for measuring strain induced alpha ’-martensite content in austenitic steels. Mater Sci Technol 20(12):1506–1512

  12. 12.

    Mohr D, Jacquemin J (2008) Large deformation of anisotropic austenitic stainless steel sheets at room temperature: multi-axial experiments and phenomenological modeling. J Mech Phys Solids 56(10):2935–2956

  13. 13.

    Jenkins R, Snyder R (1996) Introduction to X-ray powder diffractometry. Wiley-Interscience

  14. 14.

    Hecker SS, Stout MG, Staudhammer KP, Smith LJ (1982) Effects of strain state and strain rate on deformation-induced transformation in 304 stainless steel: Part I. Magnetic measurements and mechanical behavior. Metall Trans A 13A:619–626

  15. 15.

    Bozorth R (1951) Ferromagnetism. New York, United States

  16. 16.

    Villari E (1865) Change of magnetization by tension and by electric current. Annu Rev Phys Chem 126:87–122

  17. 17.

    Morishita K, Gilanyi A, Sukegawa T, Uesaka T, Miya K (1998) Magnetic non-destructive evaluation of accumulated fatigue damage in ferromagnetic steels for nuclear plant component. J Nucl Mat 258–263:1946–1952

  18. 18.

    Allen AJ, Hutchings MT, Windsor CG (1985) Neutron diffraction methods for the study of residual stress fields. Adv Phys 34(4):445–473

  19. 19.

    Allen AJ, Bourke MAM, Dawes S, Hutchings MT, Withers PJ (1992) The analysis of internal strains measured by neutron diffraction in Al/SiC metal matrix composites. Acta Metall Mater 40(9):2361–2373

  20. 20.

    Brown EN, Rae PJ, Dattelbaum DM, Clausen B, Brown DW (2008) In situ measurement of crystalline lattice strains in polytetrafluoroethylene. Exp Mech 48:119–131

  21. 21.

    Noyan IC, Brugger A, Betti R, Clausen B (2010) Measurement of strain/load transfer in parallel seven-wire strands with neutron diffraction. Exp Mech 50:265–272

  22. 22.

    Proust G, Kaschner GC, Beyerlein IJ, Clausen B, Brown DW, McCabe RJ, Tome CN (2010) Detwinning of high-purity zirconium: in situ neutron diffraction experiments. Exp Mech 50:125–133

  23. 23.

    Santacreu PO, Glez JC, Chinouilh G, Frohlich T (2006) Behaviour model of austenitic stainless steels for automotive structural parts. Steel Res Int 77(9–10):714

  24. 24.

    Kocks UF, Tome CN, Wenk H-R (1998) Texture and anisotropy: preferred orientations in polycrystals and their effect on materials properties. Cambridge, United Kingdom

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Acknowledgement

Thanks are due to Dr. Pierre-Olivier Santacreu and Benoit Proult of ArcelorMittal for valuable discussions and their help on the martensite content measurements. Dr. Eva Heripre from LMS is thanked for performing the EBSD measurements. Thanks are also due to Dr. Scott Speakman of MIT for assistance with X-ray diffraction analysis, as well as Dr. Camden Hubbard, Josh Schmidlin, and Brian Cady at ORNL for their assistance in carrying out the neutron diffraction experiments. This work made use of the MRSEC Shared Experimental Facilities supported by the National Science Foundation under award number DMR-0819762. Neutron diffraction research sponsored by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of FreedomCAR and Vehicle Technologies, as part of the High Temperature Materials Laboratory User Program, Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract number DE-AC05-00OR22725. The partial support of the MIT Fracture Consortium on Advanced High Strength Steels is gratefully acknowledged. Allison Beese was supported by the Department of Defense (DoD) through the National Defense Science & Engineering Graduate Fellowship (NDSEG) Program.

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Correspondence to D. Mohr.

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Beese, A., Mohr, D. Identification of the Direction-Dependency of the Martensitic Transformation in Stainless Steel Using In Situ Magnetic Permeability Measurements. Exp Mech 51, 667–676 (2011). https://doi.org/10.1007/s11340-010-9374-y

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Keywords

  • Stainless steel
  • Anisotropy
  • Phase transformation
  • Magnetic permeability
  • Ferritescope
  • Villari effect