Journal of Failure Analysis and Prevention

, Volume 5, Issue 5, pp 20–25 | Cite as

Analysis of sheet steel fracture during deep drawing

  • J. L. McDougall
  • M. E. Stevenson
  • K. McKeever
Case Histories
  • 146 Downloads

Abstract

Low-carbon steel sheet used for the fabrication of automotive brake components was tearing during deep drawing. The associated mill certificates revealed that the coil met the specified chemical composition and mechanical properties. Metallographic evaluation revealed a severe variation with respect to grain size through the thickness of the steel sheet, as well as a slight segregation of pearlite. Insufficient temperature during hot rolling in combination with a high coiling temperature resulted in the observed microstructural gradient. The anisotropic mechanical properties were amplified by the slight carbon segregation.

Keywords

carbon segregation deep drawing hot rolled sheet coil microstructural gradient 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    L.E. Samuels: Light Microscopy of Carbon Steels, ASM International, Materials Park, OH, 1999.Google Scholar
  2. 2.
    Properties and Selection: Irons, Steels, and High-Performance Alloys, vol. 1, ASM Handbook, ASM International, Materials Park, OH, 1990.Google Scholar
  3. 3.
    E.O. Hall: “The Deformation and Aging of Mild Steel: III Discussion of Results,” Proc. R. Soc. (London) B, 1951, 64, pp. 747–53.CrossRefGoogle Scholar
  4. 4.
    N.J. Petch: “The Cleavage Strength of Polycrystals,” J. Iron Steel Inst., 1953, 174, pp. 25–28.Google Scholar

Copyright information

© ASM International 2005

Authors and Affiliations

  • J. L. McDougall
    • 1
  • M. E. Stevenson
    • 1
  • K. McKeever
    • 2
  1. 1.Metals and Materials Engineers LLCSuwanee
  2. 2.Morrow

Personalised recommendations