Abstract
The fatigue properties of multiphase steels are an important consideration in the automotive industry. The different microstructural phases present in these steels can influence the strain life and cyclic stabilized strength of the material due to the way in which these phases accommodate the applied cyclic strain. Fully reversed strain-controlled low-cycle fatigue tests have been used to determine the mechanical fatigue performance of a dual-phase (DP) 590 and transformation-induced plasticity (TRIP) 780 steel, with transmission electron microscopy (TEM) used to examine the deformed microstructures. It is shown that the higher strain life and cyclic stabilized strength of the TRIP steel can be attributed to an increased yield strength. Despite the presence of significant levels of retained austenite in the TRIP steel, both steels exhibited similar cyclic softening behavior at a range of strain amplitudes due to comparable ferrite volume fractions and yielding characteristics. Both steels formed low-energy dislocation structures in the ferrite during cyclic straining.
Similar content being viewed by others
Notes
PHILIPS is a trademark of Philips Electronic Instruments Corp., Mahwah, NJ.
References
Y. Sakuma, O. Matsumura, H. Takechi: Metall. Trans. A, 1991, vol. 22A, pp. 489–98
R.G. Davies: Metall. Trans. A, 1978, vol. 9A, pp. 41–52
M.S. Rashid: in Formable HSLA and Dual-Phase Steels, A.T. Davenport, ed., TMS AIME, Warrendale, PA, 1979, vol. 244, pp. 1–24
O. Matsumura, Y. Sakuma, H. Takechi: Scripta Metall., 1987, vol. 21, pp. 1301–06
G.R. Speich, V.A. Demarest: Metall. Trans. A, 1981, vol. 12A, pp. 1419–28
W.W. Gerberich, P.L Hemmings, M.D. Merz, V.F. Zackay: Trans. ASM, 1968, vol. 61, pp. 834–47
I. Tamura: Met. Sci., 1982, vol. 16, pp. 245–53
V.F. Bhandarkar, V.F. Zackay, E.R. Parker: Metall. Trans., 1972, vol. 3, pp. 2619–31
J. Johansson, M. Oden: Metall. Trans. A, 2000, vol. 31A, pp. 1557–70
B. Yan and D. Urban: “Characterization of Fatigue and Crash Performance of New Generation High Strength Steels for Automotive Applications (Phase I and Phase II),” AISI/DOE Technology Roadmap Program Report, AISI, Washington, DC, Jan. 2003.
T. Yokoi, M. Takahashi, and N. Ikenaga: SAE Technical Paper 2001-01-0042, SAE, Warrendale, PA, 2002
A.M. Sherman and R.G. Davies: Int. J. Fatigue, 1981, Jan., pp. 36–40
S.R. Mediratta, V. Ramaswamy, and P. Rama Rao: Int. J. Fatigue, 1985, Apr., pp. 101–06
H.J. Roven, E. Nes: Acta Metall. Mater., 1991, vol. 39 (8), pp. 1719–33
T. Kruml, J. Polak: Mater. Sci. Eng., 2001, vol. A319–A321, pp. 564–68
K. Basu, M. Das, D. Bhattacharjee, P.C. Chakraborti: Mater. Sci. Technol., 2007, vol. 23 (11), pp. 1278–84
K. Sugimoto, M. Kobayashi, S. Yasuki, S. Hashimoto: Mater. Trans., JIM, 1995, vol. 36, pp. 632–38
K. Sugimoto, M. Kobayashi, H. Matsushima, S. Hashimoto: Trans. Jpn. Soc. Mech. Eng. A, 1995, vol. 61–581, pp. 80–86
I.B. Timokhina, P.D. Hodgson, E.V. Pereloma: Metall. Trans. A, 2004, vol. 35A, pp. 2331–41
B.D. Cullity: Elements of X-Ray Diffraction, Addison-Wesley Publishing Company, Inc., London, 1978, pp. 411–15
M. Onink, C.M. Brakman, F.D. Tichelaar, E.J. Mittemeijer, S. van der Zwaag, J.H. Root, N.B. Konyer: Scripta Metall. Mater., 1993, vol. 29 (8), pp. 1011–16
P.B. Hirsch, R.B. Nicholson, A. Howie, D.W. Pashley, M.J. Whelan: Electron Microscopy of Thin Crystals, Butterworth and Co., London, 1965, pp. 51–54
P.M. Kelly: Met. Forum, 1982, vol. 5 (1), pp. 13–23
F.J. Humphreys, M. Hatherly: Recrystallization and Related Annealing Phenomena, Pergamon, Oxford, United Kingdom, 1996, p. 30
I. Alvarez-Armas, M.C. Marinelly, J.A. Malarria, S. Degallaix, A.F. Armas: Int. J. Fatigue, 2007, vol. 29, pp. 758–64
Z.Z. Hu, M.L. Ma, Y.Q. Liu, J.H. Liu: Int. J. Fatigue, 1997, vol. 19, pp. 641–46
Acknowledgments
The authors acknowledge the support of the ARC linkage and federation fellows programs.
Author information
Authors and Affiliations
Corresponding author
Additional information
Manuscript submitted May 11, 2008.
Rights and permissions
About this article
Cite this article
Hilditch, T.B., Timokhina, I.B., Robertson, L.T. et al. Cyclic Deformation of Advanced High-Strength Steels: Mechanical Behavior and Microstructural Analysis. Metall Mater Trans A 40, 342–353 (2009). https://doi.org/10.1007/s11661-008-9732-x
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11661-008-9732-x