Model Modules to Assist Assessing and Controlling Stress Corrosion Cracking (SCC)

Validation of the newly available direct assessment methodologies for both external corrosion and stress-corrosion cracking; development of improved modules for assisting operators with controlling the parameters that cause stress-corrosion cracking; approaches for improving the integrity of systems with wrinklebends and buckles; and a viable approach to running fracture that should help operators minimize its consequences when ruptures occur. Specific goals of the project are to: (1) develop and validate a mechanism for near neutral stress corrosion cracking (NNSCC) that reflects operational and right-of-way scenarios typical of US pipelines; (2) quantify field characteristics in terms of cracking colonies and pipeline operation for line pipe from X52 thru X65; (3) establish hydrostatic retest protocols to assist in controlling high pH SCC in terms of pipeline operation represented by compressor discharge pressure and temperature for line pipe from X52 thru X65; (4) package the high pH SCC model in user-friendly format, including graphical-user interface to provide output indicative of integrity implications related to hydrostatic retesting; and (5) quantify hydrogen evolution and establish relationships between hydrogen and evolution of microplastic strain, as basis to establish related kinetics for NNpHHSCC. This is a consolidated project with Project No 162, Project No 164, and Project No 165.

Language

  • English

Project

  • Status: Completed
  • Funding: $365887.00
  • Contract Numbers:

    DTRS56-05-T-0003

  • Sponsor Organizations:

    Pipeline and Hazardous Materials Safety Administration

    U.S. Department of Transportation
    East Building, 2nd Floor 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Merritt, James

  • Performing Organizations:

    Battelle Memorial Institute

    Columbus Laboratories
    Columbus, OH  United States  43201
  • Principal Investigators:

    Leis, Brian

  • Start Date: 20041208
  • Expected Completion Date: 0
  • Actual Completion Date: 20090206
  • Source Data: RiP Project 35373

Subject/Index Terms

Filing Info

  • Accession Number: 01493756
  • Record Type: Research project
  • Source Agency: Department of Transportation
  • Contract Numbers: DTRS56-05-T-0003
  • Files: RiP
  • Created Date: Sep 22 2013 1:00AM