You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    If you are an ASTM Compass Subscriber and this document is part of your subscription, you can access it for free at ASTM Compass

    Stress Corrosion Cracking Test with Slow Strain Rate and Constant Current

    Published: 01 January 1979

      Format Pages Price  
    PDF (360K) 19 $25   ADD TO CART
    Complete Source PDF (7.9M) 438 $118   ADD TO CART

    Cite this document

    X Add email address send
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word


    A rapid electrochemical tension test was developed for evaluating stress corrosion crack initiation in carbon steel. Constant anodic current was imposed on smooth-bar tension specimens as the specimens were slowly strained to fracture at 1.3 × 10-6/s. Equivalent results were obtained for the following ductility properties measured: uniform elongation, total elongation, and reduction of area. Total elongation was chosen as the index for stress corrosion crack initiation. An equation was developed that allowed calculation of total elongation of specimens in electrolytes (test solutions) with composition ranges of 1.5 to 5.5 M nitrate, 0 to 3.5 M nitrite, and 0 to 5.0 M hydroxide, and a temperature range of 50 to 100°C. A minimum of 13 percent total elongation was selected to indicate the possible initiation of cracking in A 285-B steel alloy.

    The test was used to evaluate relative aggressiveness of synthetic nuclear wastes on A 285-B carbon steel and the relative resistances of several steels to given solution compositions. Test results formed one of the bases for setting temperature and concentration limits for several ions in nuclear wastes that are stored in carbon steel tanks at the Savannah River Plant.


    stress corrosion cracking, nitrate stress corrosion, stress corrosion cracking tests, strain rate, constant current, mechanical tests, carbon steels, waste disposal, radioactive wastes, application of mathematics

    Author Information:

    Ondrejcin, RS
    Staff chemist, Savannah River Laboratory, E. I. du Pont de Nemours and Company, Aiken, S.C.

    Committee/Subcommittee: G01.11

    DOI: 10.1520/STP38116S