Fatigue behaviour of two-phase titanium alloy in VHCF regime
| dc.contributor.author | NIKITIN, Alexander | |
| dc.contributor.author | SHANYAVSKIY, Andrey | |
| hal.structure.identifier | Institut de Mécanique et d'Ingénierie de Bordeaux [I2M] | |
| dc.contributor.author | PALIN LUC, Thierry
IDREF: 136498752 | |
| dc.date.accessioned | 2021-05-14T09:50:18Z | |
| dc.date.available | 2021-05-14T09:50:18Z | |
| dc.date.issued | 2017 | |
| dc.date.conference | 2017-07-03 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/77273 | |
| dc.description.abstractEn | This paper is focused on fatigue crack initiation and early growth in two-phase titanium alloy VT3-1 (similar to Ti-6Al-4V) under VHCF loads. The material was produced by two different processes: forging and extrusion. Each kind of material was investigated under three different loading types (push-pull, pull-pull and fully reversed torsion). Fracture surfaces of the tested specimens were analyzed by scanning electron microscopy (SEM) for getting information on crack initiation sites and surrounded fracture surface zones. The results of such analysis were compared with microstructure of the titanium alloy for establishing a crack initiation and early crack growth mechanisms. It was found that crack initiation in this alloy is caused by single or an agglomeration (“cluster”) of alpha-platelets. Under fully reversed tension the fatigue life seems to depend on the geometry of alpha-platelets clusters whereas under tension tension loading such dependence was not observed. However, materials with larger alpha-platelets clusters (macro-zones) have a lower VHCF resistance. The comparison of tension and torsion VHCF test results show a higher slop of the S-N curve under torsion than under tension for both forged and extruded titanium alloys. Nonetheless, some similarities in crack initiation and propagation scenarios were outlined between tension and torsion loadings. | |
| dc.language.iso | en | |
| dc.publisher | DVM | |
| dc.subject.en | Crack initiation mechanism | |
| dc.subject.en | Ultrasonic torsion | |
| dc.subject.en | Titanium alloy | |
| dc.subject.en | Microstructure | |
| dc.title.en | Fatigue behaviour of two-phase titanium alloy in VHCF regime | |
| dc.type | Communication dans un congrès avec actes | |
| dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph] | |
| dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des matériaux [physics.class-ph] | |
| dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des solides [physics.class-ph] | |
| bordeaux.hal.laboratories | Institut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295 | * |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | CNRS | |
| bordeaux.institution | INRAE | |
| bordeaux.institution | Arts et Métiers | |
| bordeaux.country | DE | |
| bordeaux.title.proceeding | 7th International Conference on Very High Cycle Fatigue | |
| bordeaux.conference.city | Dresden | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01597824 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01597824v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2017&rft.au=NIKITIN,%20Alexander&SHANYAVSKIY,%20Andrey&PALIN%20LUC,%20Thierry&rft.genre=proceeding |
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