Strong resistance to hydrogen embrittlement of high-performance superalloy MP35N under 200 MPa (≈30,000 psi) H 2 gas pressure - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue High Pressure Research Année : 2024

Strong resistance to hydrogen embrittlement of high-performance superalloy MP35N under 200 MPa (≈30,000 psi) H 2 gas pressure

Résumé

Embrittlement of steels and alloys in contact with hydrogen gas under pressure is a key problem in metallurgy with important implications for a future energy economy based on hydrogen. Here we report stress–strain measurements recorded under 200 MPa (∼30,000 PSI) hydrogen gas pressure to evaluate the resistance of MP35N to embrittlement. We find that MP35N with a tensile strength of more than 1800 MPa does not suffer any strength loss, retains a significant amount of ductility and hence appears to be highly resistant to hydrogen embrittlement even under elevated stress when exposed over a time-scale of hours. This exceptional resistance to H-embrittlement seems to be unique among all high-performance steels and alloys of comparable strength and bears on the use of this material for high pressure H2 research devices and storage applications.
Fichier sous embargo
Fichier sous embargo
0 3 0
Année Mois Jours
Avant la publication
vendredi 18 octobre 2024
Fichier sous embargo
vendredi 18 octobre 2024
Connectez-vous pour demander l'accès au fichier

Dates et versions

hal-04642094 , version 1 (09-07-2024)

Identifiants

Citer

Stefan Klotz, Louis Amand, Eddy Lelièvre-Berna, R. Khasanov, M. Elender, et al.. Strong resistance to hydrogen embrittlement of high-performance superalloy MP35N under 200 MPa (≈30,000 psi) H 2 gas pressure. High Pressure Research, 2024, 44 (2), pp.116-126. ⟨10.1080/08957959.2024.2339332⟩. ⟨hal-04642094⟩
0 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More