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

Pertti A. Aaltonen*, Pekka K. Pohjanne, Seppo J. Tahtinen, Hannu Hänninen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-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 potentiostat 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 TESTS TO SERVICE LIFE PREDICTION OF MATERIALS
EditorsGustavo Gragnolino, Narasi Sridhar
PublisherAMERICAN SOCIETY FOR TESTING AND MATERIALS
Pages325-339
Number of pages15
Volume1194
ISBN (Print)0803118538
DOIs
Publication statusPublished - Jan 1994
MoE publication typeA4 Article in a conference publication
EventASTM Symposium on Application of Accelerated Corrosion Tests to Service Life Prediction of Materials - Miami, United States
Duration: 16 Nov 199217 Nov 1992

Publication series

NameAMERICAN SOCIETY FOR TESTING AND MATERIALS SPECIAL TECHNICAL PUBLICATION
ISSN (Print)1071-5827

Conference

ConferenceASTM Symposium on Application of Accelerated Corrosion Tests to Service Life Prediction of Materials
Country/TerritoryUnited States
CityMiami
Period16/11/199217/11/1992

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