Intergranular corrosion testing of austenitic stainless steels

Irina Aho-Mantila, Pertti Aaltonen, Hannu Hänninen

Research output: Book/ReportReport


In this study different standard intergranular corrosion (IC) test methods and new electrochemical potentiokinetic reactivation test method as well as anodic polarization and constant potential etching in perchloric acid solution have been used to clarify the IC attack morphology in various test environments. The microstructures of austenitic stainless steels were characterized before testing by transmission electron microscopy and Auger electron spectroscopy and after testing by optical microscopy and scanning electron microscopy. A comparison of corrosion attach in steels (AISI 304, AISI 316, OX18Hl0T and SCR-1) in different heat treated conditions is presented. The suitability of nonstandardized methods for IC-testing is evaluated as well as the suitability of the IC-tests for different practical purposes.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages80
ISBN (Print)951-38-1324-X
Publication statusPublished - 1981
MoE publication typeD4 Published development or research report or study

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports


  • intergranular corrosion
  • corrosion tests
  • austenitic stainless steels


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