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Advanced EBSD to study phase transformation induced microstructures in carbon and nitrogen enriched 23MnCrMo steel

Madhumanti Mandal , Julien Teixeira , L Germain , Sabine Denis , Nathalie Gey
Virtual EBSD 2021, Apr 2021, Sheffield, United Kingdom
Communication dans un congrès hal-03205429v1

Relation between microstructure/texture anisotropy and ultrasound propagation in a Ni-based superalloy elaborated by laser powder bed fusion

Amal Khabouchi , Alain Hazotte , Lionel Germain , Jean-Daniel Penot , L. Ducousso-Ganjehi , et al.
Int. Cong. On Welding, Additve Manufacturing and Associated Non-Destructive Testing (ICWAM 2017), May 2017, Metz, France
Communication dans un congrès hal-03140894v1

Elastic lattice strain evolution in a β metastable titanium alloy studied by in-situ high energy x-ray diffraction and micromechanical modelling

R. Purushottam Raj Purohit , Nathalie Gey , O. Castelnau , T. Richeton , L. Germain , et al.
14th World Congress in Computational Mechanics (WCCM) ECCOMAS Congress 2020, Jan 2021, Paris [Online], France
Communication dans un congrès hal-03082740v1
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Hierarchical criteria to promote fast and selective a GB precipitation at b grain boundaries in b-metastable Ti-alloys

Tao Liu , Lionel Germain , Julien Teixeira , Elisabeth Aeby-Gautier , Nathalie Gey
Acta Materialia, 2017, 141, pp.97-108. ⟨10.1016/j.actamat.2017.08.063⟩
Article dans une revue hal-03039120v1

beta microtexture analysis in correlation with hcp textured regions observed in a forged near alpha titanium alloy

P. Bocher , M. Jahazi , Lionel Germain , P. Wanjara , Nathalie Gey , et al.
2005, pp.127-132
Communication dans un congrès hal-00161809v1

Simulation of texture evolution in equal channel angular extrusion of copper using a new flow field

L.S. Toth , Roxane Arruffat Massion , Lionel Germain , Seung C. Baik
2004, pp.191-198
Communication dans un congrès hal-00161956v1
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Analysis of Cold Dwell Fatigue Crack Initiation Site in a β-Forged Ti-6242 Disk in Relation with Local Texture

Lionel Germain , Youssef Samih , Pierre Delaleau , Joseph Gilgert , Nathalie Gey
Article dans une revue hal-02900480v1
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Microtexture developed during Laser Metal Deposition (LMD) of Ti-6Al-4V

Laurent Weiss , Philippe Acquier , Lionel Germain , Didier Boisselier , Eric Fleury , et al.
Récents Progrès en Génie des Procédés, 2015, 107
Article dans une revue hal-03028116v1
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Electron beam melted Ti–6Al–4V: Microstructure, texture and mechanical behavior of the as-built and heat-treated material

Charlotte de Formanoir , Sébastien Michotte , Olivier Rigo , Lionel Germain , Stéphane Godet
Materials Science and Engineering: A, 2016, 652, pp.105-119. ⟨10.1016/j.msea.2015.11.052⟩
Article dans une revue hal-01515327v1

High temperature EBSD experiment applied to in-situ observation of phase transformation in steels

Maissa Fekih , Tomas Martinez Ostormujof , Denis Sornin , Lionel Germain , Nathalie Gey
Symposium of Texture and Anisotropy of 2023, Jun 2023, Metz, France
Communication dans un congrès hal-04306664v1

Evidence of granularization of lath-like bainite during isothermal holding : How chemistry and initial microstructure impact the granularization kinetics

M. Ben Haj Slama , Nathalie Gey , L. Germain , S. Allain , K. Zhu
Euromat 2017, Sep 2017, Thessaloniki, Greece
Communication dans un congrès hal-03123717v1

Analysis of texture evolution in equal channel angular extrusion of copper using a new flow field

L.S. Toth , Roxane Arruffat Massion , Lionel Germain , Seung C. Baik , S. Suwas
Acta Materialia, 2004, 52, pp.1885-1898. ⟨10.1016/j.actamat.2003.12.027⟩
Article dans une revue istex hal-00161955v1

Characterisation of local texture and microstructure heterogeneities of a hot forged IMI 834 Ti Alloy

Lionel Germain , Nathalie Gey , Michel Humbert , P. Bocher , M. Jahazi
French-Chinese Symposium on Materials Science (6-7 février 2004, Metz), Jan 2004, France
Communication dans un congrès hal-00111883v1

Determination of parent beta-phase orientation from inherited orthorhombic phase in beta->O + B2 phase transformation of Ti-22Al-25Nb alloy.

Suhash Dey , Lionel Germain , Michel Humbert , S. Suwas , Emmanuel Bouzy
Philosophical Magazine Letters, 2005, 85 (2005), pp.463-471
Article dans une revue hal-00111896v1

Crystal plasticity, fatigue crack initiation and fatigue performance of advanced titanium alloys

E.E. Sackett , Lionel Germain , Martin R. Bache
International Journal of Fatigue, 2007, United Kingdom. pp.2015-2021
Communication dans un congrès hal-00169869v1
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Spherical Indexing of Overlap EBSD Patterns for Orientation-related Phases -Application to Titanium

W C Lenthe , L Germain , M R Chini , Nathalie Gey , Marc de Graef
Acta Materialia, 2020, 188, pp.579-590. ⟨10.1016/j.actamat.2020.02.025⟩
Article dans une revue hal-03038686v1

A Bayesian approach to quantify the single-crystal elastic constants in a polycrystalline β metastable titanium alloy

R.Purushottam Raj Purohit , Thiebaud Richeton , L. Germain , Stéphane Berbenni , Nathalie Gey , et al.
MRS BOSTON, Nov 2020, Boston [Online], United States
Communication dans un congrès hal-03082855v1

Effect of elastic anisotropy on the fatigue behavior of near-βtitanium alloys thanks to an elasto-viscoplastic self-consistent model

S. Lhadi , Stéphane Berbenni , Nathalie Gey , Thiebaud Richeton , L. Germain
The 12th International Fatigue Congress, May 2018, Poitiers, France
Communication dans un congrès hal-03082822v1

Study of the variant selection in sharp textured regions of bimodal IMI 834 billet

M. Humbert , L. Germain , N. Gey , P. Bocher , M. Jahazi
Materials Science and Engineering: A, 2006, 430, pp.157-164
Article dans une revue hal-00109261v1

Advanced EBSD and Machine Learning to identify phase transformation products in Steels

L. Germain , Tomas Martinez Ostormujof , Matthieu Salib , Bianca Frincu , Nathalie Gey
RMS EBSD 2022, Apr 2022, London (virtual), United Kingdom
Communication dans un congrès hal-03788370v1

Microstructure and mechanical properties of Ti-6Al-4V laser welds for airplane floor manufacturing application

Maxime El Kandaoui , Fabrice Scandella , Lionel Germain , Pascal Brandy , David Debreye , et al.
Proceedings of the 13th World Conference on Titanium, Aug 2015, San Diego, CA, United States. pp.1551-1556, ⟨10.1002/9781119296126.ch260⟩
Communication dans un congrès hal-01513477v1

Advanced tools to characterize phase transformations.

L Germain
Workshop Recent Trends in Advanced Microstructure Characterization, Apr 2017, Saarbrücken, Germany
Communication dans un congrès hal-03130954v1
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Unified description of the softening behavior of beta-metastable and alpha plus beta titanium alloys during hot deformation

Cecilia Poletti , Lionel Germain , Fernando Warchomicka , Martina Dikovits , Stefan Mitsche
Materials Science and Engineering: A, 2016, 651, pp.280-290. ⟨10.1016/j.msea.2015.10.109⟩
Article dans une revue hal-01515197v1

Influence of α Precipitation at β/β Grain Boundaries on α Microtexture in a β-Metastable Titanium Alloy with and without Previous Deformation

Matthieu Salib , Mien Teixeira , Lionel Germain , Benoit Denand , Nathalie Gey , et al.
Proceedings of the 13th World Conference on Titanium, Aug 2015, San Diego, CA, United States. pp.405-414, ⟨10.1002/9781119296126.ch63⟩
Communication dans un congrès hal-01513081v1
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Influence of nitrogen enrichment on the austenite grain growth and decomposition upon cooling in low-alloy steels by in-situ characterization

Madhumanti Mandal , Nathalie Gey , Lionel Germain , Florimonde Lebel , Sabine Denis , et al.
Journées annuelles SF2M, Oct 2021, Paris, France
Communication dans un congrès hal-03442615v1

Ultrafast Granularization of Lath-like Bainite in FeNiC Alloys During Isothermal Holding

Meriem Ben Haj Slama , Sébastien Allain , Nathalie Gey , Lionel Germain , Kangying Zhu
PTM 2015 - International conference on solid-solid phase transformations in inorganic materials, Jun 2015, Whistler, Canada
Communication dans un congrès hal-01513122v1
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Criteria for fast and selective α precipitation at β grain boundaries in Ti-alloys Consequence for in-service microstructures

Tao Liu , Lionel Germain , Julien Teixeira , Elisabeth Aeby-Gautier , Nathalie Gey
The 14th World Conference on Titanium, Jun 2019, Nantes, France. ⟨10.1051/matecconf/202032112040⟩
Communication dans un congrès hal-02380889v2

The effects of thermal processing in a magnetic field on grain boundary characters of ferrite in a medium carbon steel

Yudong Zhang , Grégory Vincent , Natanael Dewobroto , Lionel Germain , X. Zhao , et al.
Journal of Materials Science, 2005, 40, pp.903-908
Article dans une revue hal-00121270v1

beta to alpha s variant selection in sharp hcp textured regions of a bimodal IMI834 billet

Lionel Germain , Nathalie Gey , Michel Humbert , P. Bocher , M. Jahazi
2005, pp.663-668
Communication dans un congrès hal-00121285v1

Study and Modeling of some Variant Selection in BCC to HCP phase transformation

Michel Humbert , Nathalie Gey , Lionel Germain
2005, pp.1111-1120
Communication dans un congrès hal-00121286v1