| Téléchargement | - Voir la version finale : Joining of dissimilar alloys Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo-0.1Si using linear friction welding (PDF, 14.0 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.3390/ma13173664 |
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| Auteur | Rechercher : Rajan, Sidharth1Identifiant ORCID : https://orcid.org/0000-0001-9066-2419; Rechercher : Wanjara, Priti1Identifiant ORCID : https://orcid.org/0000-0001-7662-984X; Rechercher : Gholipour, Javad1; Rechercher : Kabir, Abu Syed |
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| Affiliation | - Conseil national de recherches du Canada. Aérospatiale
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| Format | Texte, Article |
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| Sujet | linear friction welding (LFW); solid-state joining; dissimilar alloy joints; post weld heat treatment (PWHT); stress relief annealing (SRA); titanium alloy; Ti-6Al-4V; Ti-6Al-2Sn-4Zr-2Mo-0.1Si; tensile properties; fractography |
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| Résumé | Dissimilar joints between Ti-6Al-4V (Ti-64) and Ti-6Al-2Sn-4Zr-2Mo-0.1Si (Ti-6242) were manufactured using linear friction welding. The weld quality, in terms of the microstructure and mechanical properties, was investigated after stress relief annealing (SRA) at 750 °C for 2 h and compared with the as-welded (AWed) results. The central weld zone (CWZ) microstructure in the AWed condition consisted of recrystallized prior-β grains with α’ martensite, which transformed into an acicular α+β structure after SRA. The hardness in the AWed condition was highest in the CWZ and decreased sharply through the thermomechanically affected zones (TMAZ) to the parent materials (PMs). After SRA, the hardness of the CWZ decreased, mainly due to tempering of the α’ martensite microstructure. Static tensile testing of the dissimilar welds in both the AWed and stress relief annealed (SRAed) conditions resulted in ductile fracture occurring exclusively in the Ti-6Al-4V side of the joint. The promising results on joining of Ti-64 to Ti-6242 provide valuable insight for tailoring performance of next-generation aero-engine products. |
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| Date de publication | 2020-08-19 |
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| Maison d’édition | MDPI |
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| Licence | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 174c102d-fc7c-4838-a3ea-4c189b36ac9a |
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| Enregistrement créé | 2021-05-05 |
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| Enregistrement modifié | 2021-05-05 |
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