Advertisement

Effect of slid-roll ratio on the contact fatigue behavior of sintered and hardened steels

  • R. Gnanamoorthy
  • N. Govindaraian
  • Y. Mutoh
Peer Reviewed Articles

Abstract

Powder metal processed gears and bearings find increasing application in automotive and other engineering industries. Failure of these machine elements is mostly due to the presence of sliding action in addition to the prevailing rolling action during transmission of motion and power. This rolling-sliding contact fatigue behavior of sintered and hardened steel rollers was investigated using a test machine designed and developed in the laboratory. Sintered and hardened steel rollers were mated against the hardened wrought tool steel roller at different slide-roll ratios and contact stresses. Contact stress versus number of cycles-to-failure data was generated under drop lubrication conditions. An increase in slideroll ratio significantly affected the life of the rollers at all contact stress levels investigated. Failed surfaces were analyzed using the optical microscope. Significant peeling-type failure was observed in the specimens tested, but no marked difference in the failure appearance was noted due to the introduction of traction forces.

Key words

contact fatigue failure analysis powder metal steels slide-roll ratios 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    G.F. Bocchini: Int. J. Powder Metall., 1986, 22(3), pp. 185–200.Google Scholar
  2. 2.
    N.A. Fleck and R.A. Smith: Powder Metall., 1981, 3, pp. 121–25.Google Scholar
  3. 3.
    P. Beiss and M. Dalgic: Mater. Chem. Phys., 2001, 67, pp. 37–42.CrossRefGoogle Scholar
  4. 4.
    C.M. Sonsino: Powder Metall., 1993, 33(3), pp. 235–45.Google Scholar
  5. 5.
    P. Beiss: Metal Powder Report, 1987, 34, pp. 244.Google Scholar
  6. 6.
    I. Bertillson, B. Karllsson, and J. Wasen: Modern Development in Powder Metallurgy, vol. 16, Metal Powder Industries Federation, 1985, pp. 19–32.Google Scholar
  7. 7.
    J.T. Barnby, D.C. Ghosh, and K. Dinsdale: Powder Metall., 1973, 16, pp. 55–71.Google Scholar
  8. 8.
    A.M. Kumar, G.T. Hahn, and C.A. Rubin: Metall. Trans. A, 1993, 24A, pp. 351–59.Google Scholar
  9. 9.
    Y. Murakami, C. Sakar, and K. Ichimaru: Tribol. T., 1994, 37, pp. 445–54.Google Scholar
  10. 10.
    N. Rajiv: Rolling Contact Fatigue Behavior of Sintered Steels, master’s thesis, Indian Institute of Technology, Dept. of Mechanical Eng., Madras, Chennai, India, 2001.Google Scholar
  11. 11.
    G. Straffiline, T.M. Marcaus Puscas, and A. Molinar: Metall. Mater. Trans., 2000, 31A, pp. 3091–99.CrossRefGoogle Scholar
  12. 12.
    G. Hoffman, C.M. Sonsino, and K. Michaelis: P/M in Automotive Industry, Society of Automotive Engineers, Inc., 1999.Google Scholar
  13. 13.
    P. Calyton and X. Su: Wear, 1996, 200, pp. 63–73.CrossRefGoogle Scholar
  14. 14.
    J.O. Smith and C.K. Liu: J. Appl. Mech., 1953, 20, pp. 157–66.Google Scholar
  15. 15.
    A. Seireg: Friction and Lubrication in Mechanical Design, 1998, Marcel Dekker, Inc.Google Scholar
  16. 16.
    M. Kaneta and Y. Murakami: Tribol. Int., 1987, 20(4), pp. 210–17.CrossRefGoogle Scholar

Copyright information

© ASM International 2004

Authors and Affiliations

  • R. Gnanamoorthy
    • 1
  • N. Govindaraian
    • 1
  • Y. Mutoh
    • 2
  1. 1.Department of Mechanical EngineeringIndian Institute of Technology MadrasChennaiIndia
  2. 2.Department of Mechanical EngineeringNagaoka University of TechnologyNagaoka ShiJapan

Personalised recommendations