Daniel Maisonnette
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Daniel Maisonnette has a total of 16 co-authors. Here are the top co-authors by number of shared publications:
- Dominique Poquillon
CIRIMAT, CNRS/UPS/INPT, 4 allée Emile Monso, F-31030 Toulouse, France
3 shared publications - Christine Blanc
CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 118 Route de Narbonne, 31062 Toulouse cedex 9 - France ; CIRIMAT, Toulouse INP, Université Toulouse 3 Paul Sabatier, CNRS, Université de Toulouse, 4 allée Emile Monso - BP44362, 31030 Toulouse cedex 4 - France - France)
2 shared publications - Christophe Grosjean
Pôle MMS, CETIM, 7 rue de la Presse, 42000 Saint-Etienne, France
2 shared publications E. Andrieu
Univ Toulouse, INP ENSIACET, CNRS, CIRIMAT, 4 Allee Emile Monso,BP 44362, F-31030 Toulouse 4, France
2 shared publicationsN. Guennouni
Univ Toulouse, INP ENSIACET, CNRS, CIRIMAT, 4 Allee Emile Monso,BP 44362, F-31030 Toulouse 4, France
2 shared publications- Adrien Barroux1 shared publication
Latest Publications
- 31 May 2023
- Published by Elsevier in Materialia
- Vol. 30
Three-dimensional modeling of solidification grain structures generated by laser powder bed fusion
- 31 May 2023
- Published by Elsevier in Materialia
- Vol. 30
Three-dimensional modeling of solidification grain structures generated by laser powder bed fusion
- Open Access
Susceptibility to Pitting and Environmentally Assisted Cracking of 17-4PH Martensitic Stainless Steel Produced by Laser Beam Melting
Materials produced by additive manufacturing (AM) often have different microstructures from those obtained using conventional metallurgy (CM), which can have significant impacts on the materials’ durability, and in particular, resistance to corrosion. In this study, we were concerned with the susceptibility to pitting and environmentally assisted cracking (EAC) of 17-4PH martensitic stainless steel (MSS). We focused on the evolution from pitting to EAC, and the behaviour of MSS produced by AM was compared with that of its CM counterpart. Potentiodynamic polarisation tests were combined with chronoamperometry measurements performed without and with mechanical loading to study both stable and metastable pitting and the influence of stress on these processes. EAC tests were carried out and combined with observations of fracture surfaces. MSS produced by AM was more resistant to pit initiation due to fewer and finer NbC particles. However, the propagation kinetics of stable pits were higher for this MSS due to a higher amount of reversed austenite. The stress was found to stabilise the metastable pits and to accelerate the propagation of stable pits, which resulted in an increased susceptibility to EAC of the MSS produced by AM. These results clearly highlighted the fact that the reversed austenite amount has to be perfectly controlled in AM processes.
Open AccessSusceptibility to Pitting and Environmentally Assisted Cracking of 17-4PH Martensitic Stainless Steel Produced by Laser Beam Melting
Materials produced by additive manufacturing (AM) often have different microstructures from those obtained using conventional metallurgy (CM), which can have significant impacts on the materials’ durability, and in particular, resistance to corrosion. In this study, we were concerned with the susceptibility to pitting and environmentally assisted cracking (EAC) of 17-4PH martensitic stainless steel (MSS). We focused on the evolution from pitting to EAC, and the behaviour of MSS produced by AM was compared with that of its CM counterpart. Potentiodynamic polarisation tests were combined with chronoamperometry measurements performed without and with mechanical loading to study both stable and metastable pitting and the influence of stress on these processes. EAC tests were carried out and combined with observations of fracture surfaces. MSS produced by AM was more resistant to pit initiation due to fewer and finer NbC particles. However, the propagation kinetics of stable pits were higher for this MSS due to a higher amount of reversed austenite. The stress was found to stabilise the metastable pits and to accelerate the propagation of stable pits, which resulted in an increased susceptibility to EAC of the MSS produced by AM. These results clearly highlighted the fact that the reversed austenite amount has to be perfectly controlled in AM processes.