Influence of hydrogen on mechanical properties of pure titanium T40 (grade 2) and TA6V ELI (grade 23): a local approach of fracture
The effect of hydrogen charging by cathodic polarization on T40 (grade 2) and TA6V ELI (grade 23) in artificial seawater appeared to be dependent on the metallurgical structure of the alloys. Mechanical tensile tests were performed on smooth samples and with different notches without and with hydrog...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_09004.pdf |
| _version_ | 1818726186445963264 |
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| author | POLONI Alexandre OUDRISS Abdelali CREUS Juan COHENDOZ Stéphane Bouhattate Jamaa FRAPPART Simon MILLOT Thierry MATHIS Aude FEAUGAS Xavier |
| author_facet | POLONI Alexandre OUDRISS Abdelali CREUS Juan COHENDOZ Stéphane Bouhattate Jamaa FRAPPART Simon MILLOT Thierry MATHIS Aude FEAUGAS Xavier |
| author_sort | POLONI Alexandre |
| collection | DOAJ |
| description | The effect of hydrogen charging by cathodic polarization on T40 (grade 2) and TA6V ELI (grade 23) in artificial seawater appeared to be dependent on the metallurgical structure of the alloys. Mechanical tensile tests were performed on smooth samples and with different notches without and with hydrogen charging. Evolution of the fracture mode has been studied and the impact of hydrides was questioned. FEM calculation offers the opportunity to associate the local hydrostatic stress σm and equivalent plastic strain εpeq leading to the fracture and to illustrate the evolution of these conditions with hydrogen absorption and hydrides formation. Hydrogen charged by cathodic polarization appeared to have a small impact on grade 2 reducing its A%, whereas it leads to a strong embrittlement of grade 23 when the solubility limit of β-phase is exceeded and hydrides formed. |
| first_indexed | 2024-12-17T21:54:12Z |
| format | Article |
| id | doaj.art-5356374f8ed445fcba7617344cffcbb8 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-17T21:54:12Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-5356374f8ed445fcba7617344cffcbb82022-12-21T21:31:10ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013210900410.1051/matecconf/202032109004matecconf_ti2019_09004Influence of hydrogen on mechanical properties of pure titanium T40 (grade 2) and TA6V ELI (grade 23): a local approach of fracturePOLONI AlexandreOUDRISS Abdelali0CREUS Juan1COHENDOZ Stéphane2Bouhattate Jamaa3FRAPPART Simon4MILLOT Thierry5MATHIS Aude6FEAUGAS Xavier7Laboratoire des Sciences de l’Ingénieur pour l’Environnement UMR-CNRS 7356, Université de La RochelleLaboratoire des Sciences de l’Ingénieur pour l’Environnement UMR-CNRS 7356, Université de La RochelleLaboratoire des Sciences de l’Ingénieur pour l’Environnement UMR-CNRS 7356, Université de La RochelleLaboratoire des Sciences de l’Ingénieur pour l’Environnement UMR-CNRS 7356, Université de La RochelleNaval Group, Technocampus OcéanNaval Group, Technocampus OcéanNaval Group, Technocampus OcéanLaboratoire des Sciences de l’Ingénieur pour l’Environnement UMR-CNRS 7356, Université de La RochelleThe effect of hydrogen charging by cathodic polarization on T40 (grade 2) and TA6V ELI (grade 23) in artificial seawater appeared to be dependent on the metallurgical structure of the alloys. Mechanical tensile tests were performed on smooth samples and with different notches without and with hydrogen charging. Evolution of the fracture mode has been studied and the impact of hydrides was questioned. FEM calculation offers the opportunity to associate the local hydrostatic stress σm and equivalent plastic strain εpeq leading to the fracture and to illustrate the evolution of these conditions with hydrogen absorption and hydrides formation. Hydrogen charged by cathodic polarization appeared to have a small impact on grade 2 reducing its A%, whereas it leads to a strong embrittlement of grade 23 when the solubility limit of β-phase is exceeded and hydrides formed.https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_09004.pdf |
| spellingShingle | POLONI Alexandre OUDRISS Abdelali CREUS Juan COHENDOZ Stéphane Bouhattate Jamaa FRAPPART Simon MILLOT Thierry MATHIS Aude FEAUGAS Xavier Influence of hydrogen on mechanical properties of pure titanium T40 (grade 2) and TA6V ELI (grade 23): a local approach of fracture MATEC Web of Conferences |
| title | Influence of hydrogen on mechanical properties of pure titanium T40 (grade 2) and TA6V ELI (grade 23): a local approach of fracture |
| title_full | Influence of hydrogen on mechanical properties of pure titanium T40 (grade 2) and TA6V ELI (grade 23): a local approach of fracture |
| title_fullStr | Influence of hydrogen on mechanical properties of pure titanium T40 (grade 2) and TA6V ELI (grade 23): a local approach of fracture |
| title_full_unstemmed | Influence of hydrogen on mechanical properties of pure titanium T40 (grade 2) and TA6V ELI (grade 23): a local approach of fracture |
| title_short | Influence of hydrogen on mechanical properties of pure titanium T40 (grade 2) and TA6V ELI (grade 23): a local approach of fracture |
| title_sort | influence of hydrogen on mechanical properties of pure titanium t40 grade 2 and ta6v eli grade 23 a local approach of fracture |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_09004.pdf |
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