STP665: Evaluation of Slow Strain-Rate Stress Corrosion Tests Results

    Payer, JH
    Associate managermanagerresearch leader, Battelle's Columbus Laboratories, Columbus, Ohio

    Berry, WE
    Associate managermanagerresearch leader, Battelle's Columbus Laboratories, Columbus, Ohio

    Boyd, WK
    Associate managermanagerresearch leader, Battelle's Columbus Laboratories, Columbus, Ohio

    Pages: 17    Published: Jan 1979


    Abstract

    Slow strain-rate technique provides a rapid and reliable method to determine stress corrosion cracking (SCC) susceptibility of metals and alloys for a broad range of applications. Procedures are discussed for using the technique to (a) determine if an alloy is susceptible to SCC, (b) express SCC severity quantitatively, (c) rank alloys with respect to SCC susceptibility, and (d) evaluate the consequences of SCC susceptibility. Metallography or fractography is essential to confirm the presence or absence of SCC. Once SCC is confirmed, a number of parameters are available to express SCC severity quantitatively. Slow strain-rate technique is a conservative measure in that alloys exhibiting SCC in the test can be acceptable in service if stresses are controlled; however, no SCC in the test indicates no SCC in service under the conditions tested.

    Keywords:

    stress corrosion cracking, potential, oxidizers, reducing agents, materials selection, failure analysis, metallography, fractography, carbon steels, carbondioxide-carbon monoxide, stainless steels, high temperature, crack velocity, ductility


    Paper ID: STP38109S

    Committee/Subcommittee: G01.06

    DOI: 10.1520/STP38109S


    CrossRef ASTM International is a member of CrossRef.