Application of a multipotential test method for rapid screening of austenitic stainless steels in process environments

Pertti Aaltonen, Pekka Pohjanne, Seppo Tähtinen, Hannu Hänninen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    The advantage of using MultiPotential Test, MPT, method together with, for example, double U-bend specimens is that in a single exposure a wide variety of corrosion phenomena can be screened in any environment. The MPT method has been applied in several tests both in simulated environments and in real process conditions. The measurement of threshold potential for stress-corrosion cracking of cold deformed and sensitized stainless steels in simulated boiling water reactor environment (BWR) is an example of successful applications of the MPT method. The MPT method applies a current source combined with potentiostal and resistors to polarize different specimens to desired potentials. The electrochemical potential range, which can be obtained, depends on the electrical instrumentation and also on the conductivity of the electrolyte.
    Original languageEnglish
    Title of host publicationApplication of accelerated corrosion test to service life prediction of materials
    EditorsGustavo Gragnolino, Narasi Sridhar
    PublisherAmerican Society for Testing and Materials ASTM
    Pages325-339
    Publication statusPublished - 1993
    MoE publication typeNot Eligible
    EventSymposium on Applications of Accelerated Corrosion Tests to Service Life Prediction of Materials - Miami, United States
    Duration: 16 Nov 199217 Nov 1992

    Conference

    ConferenceSymposium on Applications of Accelerated Corrosion Tests to Service Life Prediction of Materials
    Abbreviated titleASTM STP 1194.
    CountryUnited States
    CityMiami
    Period16/11/9217/11/92

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  • Cite this

    Aaltonen, P., Pohjanne, P., Tähtinen, S., & Hänninen, H. (1993). Application of a multipotential test method for rapid screening of austenitic stainless steels in process environments. In G. Gragnolino, & N. Sridhar (Eds.), Application of accelerated corrosion test to service life prediction of materials (pp. 325-339). American Society for Testing and Materials ASTM.