2026-05-07T10:17:13Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/73072024-04-12T11:33:44Zcom_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
2023-01-24T12:00:00Z
2023-01-24T12:00:00Z
2022-10
0013-7944
http://hdl.handle.net/10259/7307
10.1016/j.engfracmech.2022.108749
The influence of internal hydrogen on the mechanical behavior of the 42CrMo4 steel grade has been evaluated by means of internal pressure fracture tests performed on hydrogen precharged notched cylindrical specimens. The notched cylindrical specimens were precharged in a 1 M H2SO4 solution + 0.25 g/l As2O3 for 3 h and 1.2 mA/cm2. Thereupon, hydraulic fracture tests were done under different ramps of pressure: 208, 100, 52, 35 and 25 MPa/h, respectively. Hydrogen content introduced into the notched cylindrical specimens (∼1 ppm) was determined by thermal desorption analysis (TDA), using a LECO DH 603 hydrogen analyser. Hydrogen damage was observed as testing time increased until 2 h. The burst pressure is reduced around 28 % while the Notch Mouth Opening Displacement decreased around 50 %. Hydrogen embrittlement susceptibility is discussed through the hydrogen embrittlement micromechanisms.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Hydrogen embrittlement
Internal high pressure
Hydrogen cathodic precharge
Numerical modelling
HEDE mechanism
Hydraulic fracture behavior in the presence of hydrogen in notched miniature cylindrical specimens of a 42CrMo4 steel
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/7307/1/Peral-efm_2022.pdf
File
MD5
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12686799
application/pdf
Peral-efm_2022.pdf