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Evolution of the Bauschinger Effect During Fabrication of Micro-Alloyed Pipeline Steels

[+] Author Affiliations
J. B. Wiskel, M. Rieder, H. Henein

University of Alberta, Edmonton, AB, Canada

Paper No. IPC2004-0438, pp. 1865-1869; 5 pages
doi:10.1115/IPC2004-0438
From:
  • 2004 International Pipeline Conference
  • 2004 International Pipeline Conference, Volumes 1, 2, and 3
  • Calgary, Alberta, Canada, October 4–8, 2004
  • Conference Sponsors: International Petroleum Technology Institute
  • ISBN: 0-7918-4176-6 | eISBN: 0-7918-3737-8
  • Copyright © 2004 by ASME

abstract

A study to quantify the Bauschinger effect during fabrication of micro-alloyed pipeline steel (X52 and X70) was conducted. A finite element stress model, that incorporates a kinematic yield surface formulation, was developed to calculate the magnitude of the Bauschinger effect viz a viz the relative yield surface shift ratio α/αsat . The evolution of this ratio during ERW fabrication and its relation to post forming yield behaviour is discussed. Finally the relationship between α/αsat and pipe properties will be discussed.

Copyright © 2004 by ASME

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