Paper Title:
Hydrogen Induced Phase Transformations in Austenitic-Ferritic Steel
  Abstract

The hydrogen influence on the microstructure of the austenitic-ferritic Cr22-Ni5-Mo3 stainless steel was investigated. Cathodic hydrogen charging was performed electrochemically from aqueous solution of 0.1M H2SO4 with hydrogen entry promoter addition. The aim of this study was to reveal microstructural changes appearing during the hydrogen charging and particularly to clarify the occurrence of phase transformations induced by hydrogen. The specific changes in both phases of steel were observed. In the ferritic phase, strong increase of dislocation density was noticed. Longer time of hydrogen charging leaded also to the strips and twin plates formation in ferrite phase. In the austenitic phase, the generation of stacking faults, followed by the formation of α' martensite was remarked.

  Info
Periodical
Solid State Phenomena (Volume 112)
Edited by
Ludwik Dobrzynski and Krystyna Perzynska
Pages
133-140
DOI
10.4028/www.scientific.net/SSP.112.133
Citation
A. Głowacka, M.J. Woźniak, G. Nolze, W.A. Świątnicki, "Hydrogen Induced Phase Transformations in Austenitic-Ferritic Steel ", Solid State Phenomena, Vol. 112, pp. 133-140, 2006
Online since
May 2006
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$32.00
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