2026-04-29T09:08:38Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/77132024-04-12T11:34:32Zcom_10259_4201com_10259_5086com_10259_2604col_10259_4505
Repositorio Institucional de la Universidad de Burgos
author
Peral, Luis Borja
author
Díaz Portugal, Andrés
author
Arniella, V.
author
Belzunce, J.
author
Alegre Calderón, Jesús Manuel
author
Cuesta Segura, Isidoro Iván
2023-06-20T13:09:16Z
2023-06-20T13:09:16Z
2023-09
0013-7944
http://hdl.handle.net/10259/7713
10.1016/j.engfracmech.2023.109414
The influence of hydrogen on the mechanical behavior of a quenched and tempered 42CrMo4 steel has been evaluated by means of high internal pressure fracture tests carried out on hydrogen precharged notched cylindrical specimens. The notched cylindrical specimens were precharged in a 1 M H2SO4 + 0.25 g/l As2O3 solution for 3 h with 1.2 mA/cm2. Hydraulic fracture tests were performed at different loading rates. Hydrogen embrittlement resistance increased with grain size refinement although the fine grained specimen had a higher hydrogen content than the coarse grained one. Fractographic analysis showed hydrogen enhanced decohesion fracture was less pronounced with decreasing grain size. Hydrogen embrittlement susceptibility is discussed in terms of the prior austenite grain size (PAGS) and the operative fracture mechanisms.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
High internal pressure
PAGS
Hydrogen cathodic precharge
Martensitic lath decohesion
Hydrogen embrittlement
Influence of hydrogen on the hydraulic fracture behavior of a 42CrMo4 steel welds: Effect of the prior austenite grain size
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/7713/1/Peral-efm_2023.pdf
File
MD5
e101e5234093fbf50cefff90661ea30a
24180613
application/pdf
Peral-efm_2023.pdf