Published 2014 | Version v1
Journal article Metadata-only

Role of copper and aluminum additions on the hydrogen embrittlement susceptibility of austenitic Fe-Mn-C TWIP steels

Creators

  • 1. CNRS/CEA UMR 8587, CEA Saclay, 91190 Gif-sur-Yvette cedex, (France)
  • 2. CEA, DEN, DPC, SCCME, LECA, 91191 Gif-sur-Yvette cedex, (France)
  • 3. IUT Mesures Physiques d'Orsay, Univ. Paris XI, Plateau du Moulon, 91400 Orsay cedex, (France)
  • 4. ArcelorMittal Research, Voie Romaine-BP30320, 57283 Maizieres-les-Metz cedex, (France)

Description

The role of alloying elements on the hydrogen embrittlement (HE) susceptibility of a Fe-18Mn-0.6C alloy was investigated by in situ tensile tests and characterized by the ductility loss associated with intergranular fracture. Under cathodic polarization an improvement of HE resistance is related to the SFE increase with Cu or Al additions reducing the stress-strain and H localization at grain boundaries, which prevents H-induced intergranular cracking. At rest potential, beneficial effects of Cu and Al are related to their influence on hydrogen absorption during the corrosion process. However, residual phosphorus strongly reduces the beneficial effect of aluminum. (authors)

Availability note (English)

Available from doi: http://dx.doi.org/10.1016/j.corsci.2014.01.022

Additional details

Identifiers

DOI
10.1016/j.corsci.2014.01.022;

Publishing Information

Journal Title
Corrosion Science
Journal Volume
82
Journal Page Range
p. 218-226
ISSN
0010-938X

INIS

Country of Publication
United Kingdom
Country of Input or Organization
France
INIS RN
48015259
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM ADDITIONS; AUSTENITIC STEELS; COPPER ADDITIONS; FRACTURES; GRAIN BOUNDARIES; HYDROGEN EMBRITTLEMENT; INTERGRANULAR CORROSION; STRAINS; TENSILE PROPERTIES
Descriptors DEC
ALLOYS; ALUMINIUM ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; COPPER ALLOYS; CORROSION; EMBRITTLEMENT; FAILURES; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; MICROSTRUCTURE; STEELS; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
38 refs.