Numerical Simulation of the Plasma Arc Melting Cold Hearth Refining Process (PAMCHR)

Autor: Stéphane Hans, Neill McDonald, Léa Décultot, Jérôme Delfosse, Emiliane Doridot, Jean-Pierre Bellot, Alain Jardy

Publikováno v: Metallurgical and Materials Transactions B
Metallurgical and Materials Transactions B, Springer Verlag, 2020, 51 (4), pp.1329-1338. ⟨10.1007/s11663-020-01866-0⟩

International audience; In order to improve our understanding of the PAMCHR process applied to the processing of Ti alloys, a 3D numerical simulation of the thermal and hydrodynamic behavior of the metal flowing in the refining hearth has been set up

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d5c089f6dc1ad3bf84061989e585d9b
https://hal.archives-ouvertes.fr/hal-03093805

Effect of long term aging on the fatigue crack propagation in the β titanium alloy Ti 17

Autor: Mandana Arzaghi, Patrick Villechaise, Jérôme Delfosse, Gilbert Hénaff, Layla Sasaki

Publikováno v: Materials Science and Engineering: A. 707:253-258

This work aims to evaluate the impact of a prolonged thermal aging on the fatigue crack growth properties of a commercial Ti 17 (Ti-5Al-2Sn-2Zr-4Mo-4Cr) titanium alloy. Aging was operated at 450 °C for extended times, of 1000 h and 10,000 h respecti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::316f0971ce2810aab78e5f90975e6818
https://doi.org/10.1016/j.msea.2017.09.052

Atomization of Ti-64 alloy using the EIGA process: comparison of the characteristics of powders produced in labscale and industrial-scale facilities

Autor: Stefan Drawin, Marc Thomas, Olivier Godde, Layla Sasaki, Agathe Deborde, Jérôme Delfosse, Michel Pierronnet

Publikováno v: MATEC Web of Conferences. The 14th World Conference on Titanium (Ti 2019)
The 14th World Conference on Titanium (Ti 2019)
The 14th World Conference on Titanium (Ti 2019), Jun 2019, Nantes, France. pp.07013, ⟨10.1051/matecconf/202032107013⟩
MATEC Web of Conferences, Vol 321, p 07013 (2020)

International audience; Titanium alloy powders, mostly the Ti-64 alloy with composition Ti-6Al-4V (wt.%), are extensively used for biomedical and high-demanding applications, e.g. in aeronautics. Advanced powder metallurgy processes like additive man

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d80b1bc9ace265652ceeddf2da4b78e
https://doi.org/10.1051/matecconf/202032107013

Microstructural evolutions and mechanical properties during long-term ageing of titanium alloy Ti-17

Autor: Jérôme Delfosse, Claude Archambeau-Mirguet, Moukrane Dehmas, Nicolas Maury, Elisabeth Aeby-Gautier

Publikováno v: 'MATEC Web of Conferences ', vol: 321, pages: 12004-1-12004-7 (2020)
MATEC Web of Conferences, Vol 321, p 12004 (2020)

Microstructural evolutions and resulting mechanical properties have been investigated in the near-β Ti-17 alloy following long- term ageing heat-treatment up to 6000 h at 450 °C. The initial microstructure was bimodal lamellar, consisting of two po

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed050c62a8a553cd9aa7aa81c9ada241
https://epn-library.esrf.fr/flora/jsp/index_view_direct_anonymous.jsp?record=doc:PUB_ESRF:58131

Structure evolutions in a Ti–6Al–4V matrix composite reinforced with TiB, characterised using high energy X-ray diffraction

Autor: Elisabeth Aeby-Gautier, David Tricker, Ludovic Ropars, Jérôme Delfosse, Moukrane Dehmas, Sophie Gourdet

Publikováno v: Journal of Alloys and Compounds
Journal of Alloys and Compounds, Elsevier, 2015, 624, pp.179-188. ⟨10.1016/j.jallcom.2014.10.203⟩

International audience; A titanium matrix composite reinforced with TiB was produced using powder metallurgy. A Ti-6Al-4V alloy was chosen to be the matrix, and 12 wt.% of TiB2 was used as the boron source for the solid state formation of TiB. The Ti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b51795fafd54dc3c222f22a79dbab9f6
https://doi.org/10.1016/j.jallcom.2014.10.203