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Nano Precipitate Analysis of X80 Pipeline Steel Using Small Angle Neutron Scattering

[+] Author Affiliations
J. B. Wiskel, D. G. Ivey, H. Henein

University of Alberta, Edmonton, AB, Canada

Paper No. IPC2006-10113, pp. 125-130; 6 pages
doi:10.1115/IPC2006-10113
From:
  • 2006 International Pipeline Conference
  • Volume 3: Materials and Joining; Pipeline Automation and Measurement; Risk and Reliability, Parts A and B
  • Calgary, Alberta, Canada, September 25–29, 2006
  • Conference Sponsors: Pipeline Division
  • ISBN: 0-7918-4263-0
  • Copyright © 2006 by ASME

abstract

An understanding of precipitate size distribution and its evolution with processing conditions is important with regards to the final mechanical properties of microalloyed pipeline steel. A study was undertaken using small angle neutron scattering (SANS) to quantify the size distribution of nano-sized precipitates in X80 pipeline steel. The distributions obtained for different X80 samples were correlated with the finish rolling temperature and final coiling temperature as a means of identifying processing conditions that may enhance fine precipitate evolution. The precipitate distribution predicted for Grade 100 steel using SANS data is compared to data obtained from a TEM particle counting analysis.

Copyright © 2006 by ASME

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