High Temperature Plastic Deformation Constitutive Equation of a New Alloy for Piston Ring

  • Dejin Wei
  • Ruirui Liu
  • Chengkun Zuo
  • Haitao ZhouEmail author


Hot compression tests of a new CrMoV alloy for piston ring are conducted by Gleeble-3800 thermal mechanical simulation tester at the temperature of 950, 1000, 1050, 1100 and 1150 °C and strain rate of 0.01, 0.1, 1, 10 s−1. The results show that the true stress strain curves first go up to peak, and then go down to steady state in accord with characteristics of dynamic recrystallization, indicating that the main softening mechanism of this alloy during hot deformation is dynamic recrystallization. The hot deformation behavior of this alloy is characterized by Arrhenius hyperbolic sine relationship with the activation energy and stress index. On the basis of the true stress strain curves, the constitutive equation of the peak flow stress of this alloy is established. With the equation, the flow stress of this alloy can be predicated by numerical simulation for a new type piston ring.

Graphical abstract

The hot deformation behavior of this alloy was characterized by Arrhenius hyperbolic sine relationship, the activation energy and stress index was obtained. Constitutive equation of the peak flow stress of this alloy was established. The results can make contribution to numerical simulation of the manufacturing process for a new type piston ring.


Piston ring CrMoV alloy High temperature plastic deformation Constitutive equation Rheological stress model 



  1. 1.
    X. Gong, H.E. YunXin, P. Cheng, Status and development direction of piston rings' materials and structures. Equip. Manuf. Technol. 1, 115–117 (2012)Google Scholar
  2. 2.
    G. Feng Lei et al., Analysis on microstructure of new alloy steel for piston ring. Heat Treat. Technol. Equip. 3, 24–28 (2017)Google Scholar
  3. 3.
    L. Wenbo, A summary of engine piston ring materials. Trop. Agric. Eng. 2, 16–19 (2008)Google Scholar
  4. 4.
    Y. Wen Tao et al., Effect of spheroidizing annealing on microstructure and mechanical properties of high-carbon martensitic stainless steel 8Cr13MoV. J. Mater. Eng. Perform. 26(2), 1–10 (2016)Google Scholar
  5. 5.
    T. Müller et al., Examination of the influence of heat treatment on the corrosion resistance of martensitic stainless steels. Mater. Corros. 66(7), 656–662 (2015)CrossRefGoogle Scholar
  6. 6.
    H. Bai, W. Bojian, Progress in chemical composition, process and corrosion resistance of martensite stainless steel. Spec. Steel 30(2), 30–33 (2009)Google Scholar
  7. 7.
    J. Yang, Processing of steel piston rings. Mach. Manuf. 7, 1–14 (2000)Google Scholar
  8. 8.
    F. Qiu, Piston ring materials. Intern. Combust. Eng. Accessories 1, 3–14 (2004)Google Scholar
  9. 9.
    C. Liang, Technical status and development of piston rings for automotive engines. Automob. Accessories 16, 32–35 (2006)Google Scholar
  10. 10.
    M. Fan, Technical status and development trend of piston rings for gasoline engines and diesel engines. Automob. Maint. Maint. 10, 77–81 (2012)Google Scholar
  11. 11.
    R.D. Doherty et al., Current issues in recrystallization: a review. Mater. Sci. Eng. A 238(2), 219–274 (1997)CrossRefGoogle Scholar
  12. 12.
    Ganapathysubramanian S, Zabaras N, Multi-length scale design of deformation processes for control of orientation (texture) dependent properties, in AIP Conference American Institute of Physics (2004)Google Scholar
  13. 13.
    H.J. Mcqueen, Development of dynamic recrystallization theory. Mater. Sci. Eng. A 387, 203–208 (2004)CrossRefGoogle Scholar
  14. 14.
    Y. Wang et al., Flow behavior and microstructures of superalloy 718 during high temperature deformation. Mater. Sci. Eng. A 497(1–2), 479–486 (2008)CrossRefGoogle Scholar
  15. 15.
    T. Sakai et al., Dynamic and post-dynamic recrystallization under hot, cold and severe plastic deformation conditions. Prog. Mater. Sci. 60(1), 130–207 (2014)CrossRefGoogle Scholar
  16. 16.
    H.J. Mcqueen, N.D. Ryan, Constitutive analysis in hot working. Mater. Sci. Eng. A 322(1–2), 43–63 (2002)CrossRefGoogle Scholar
  17. 17.
    C.M. Sellars, W.J. Mctegart, On the mechanism of hot deformation. Acta Metall. 14(9), 1136–1138 (1966)CrossRefGoogle Scholar
  18. 18.
    C. Zener, J.H. Hollomon, Effect of strain rate upon plastic flow of steel. J. Appl. Phys. 15(1), 22–32 (1944)CrossRefGoogle Scholar
  19. 19.
    J. Liu, Z. Cui, C. Li, Modelling of flow stress characterizing dynamic recrystallization for magnesium alloy AZ31B. Comput. Mater. Sci. 41(3), 375–382 (2008)CrossRefGoogle Scholar
  20. 20.
    N.D. Ryan, H.J. Mcqueen, Flow stress, dynamic restoration, strain hardening and ductility in hot working of 316 steel. J. Mater. Process. Technol. 21(2), 177–199 (1990)CrossRefGoogle Scholar

Copyright information

© The Korean Institute of Metals and Materials 2019

Authors and Affiliations

  • Dejin Wei
    • 1
    • 2
  • Ruirui Liu
    • 1
    • 2
  • Chengkun Zuo
    • 1
    • 2
  • Haitao Zhou
    • 1
    • 2
    Email author
  1. 1.School of Material Science and EngineeringCentral South UniversityChangshaChina
  2. 2.Key Laboratory of Non-ferrous Metal Material Science and EngineeringCentral South UniversityChangshaChina

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