Proceedings of the Third International Conference on Metals & Hydrogen A03

TDS study of deuterium distribution in 3rd generation high strength steels as a function of charging conditions and cold rolling

A. Pushparasah (1)1(2)2 , F. Martin (2)2 , Q. Auzoux (2)2 , T. Dieudonné (3)3 , S. Cobo (3)3 , L. Moli Sanchez (4)4 , K. Wolski (1)1

  • (1) 1

    Ecole des Mines de Saint-Etienne, 158 Cours Fauriel, Centre SMS, LGF UMR CNRS 5307, F-42023 Saint-Etienne, France

  • (2) 2

    DEN-Service de la Corrosion et du Comportement des Matériaux dans leur Environnement (SCCME), CEA, Université Paris-Saclay, F-91191, Gif-sur-Yvette, France

  • (3) 3

    ArcelorMittal Global Research and Development Maizières Automotive Product, Voie Romaine, F-57280 Maizières-lès-Metz, France

  • (4) 4

    ArcelorMittal Global Research and Development Gent, OCAS NV, Pres. J.F. Kennedylaan 3, 9060 Zelzate, Belgium


Two 3rd generation steels were studied: an austenitic-ferritic MnAl steel and an austenitic-martensitic quenched and partitioned (Q&P) steel. Hydrogen absorption during elaboration was simulated by exposing the steels to deuterium atmosphere during their final thermal treatment. Nitrogen-exposed specimens were also deuterium cathodically charged in order to simulate hydrogen entry in the steels during an optional electrogalvanization process. Thermal desorption mass spectrometry (TDS), combined with aging at room temperature and cold rolling, was used to study diffusion and trapping. The evolution of different TDS spectral contributions with aging and cold rolling allowed educated guesses on their origin. Peaks specific to martensitic transformation were identified.


  • hydrogen
  • deuterium
  • high strength steels
  • cold rolling
  • thermal desorption spectrometry