Research interests

• Advanced manufacturing (additive, flash sintering)
• Multi-principal element alloys
• Titanium alloys
• Process/Microstructure/Properties
• Metals deformation mechanisms
• Corrosion of metals
• Transmission Electron Microscopy
• High Energy X-ray Diffraction

Current position(s)

Materials Scientist; Deputy-Group Leader

Career path

• 2021 - now: Deputy Group Leader in the Metallurgy and Advanced Microscopy Group
• 2023-now: Experimental Lead of LDRD-SI
• 2020-2022: PI of LDRD-LW
• 2019-2022: Thrust Lead of LDRD-SI
• 2020-now: Lead of WPD funded project
• 2019 - now: Staff Scientist at LLNL
• 2016 - 2019: Postdoctoral Research Staff at LLNL
• 2014 - 2016: Postdoctoral Fellow at the Johns Hopkins University

Subject Matter Expertise

• Metals process/structure/properties
• Electron Microscopy

Selected publications

• J. Ren et al., “Strong yet ductile nanolamellar high-entropy alloys by additive manufacturing.” Nature 608, 62–68 (2022).
• T. Voisin et al., “Pitting corrosion in 316L stainless steel fabricated by laser powder bed fusion additive manufacturing: a review and perspective”, invited review paper in the Journal of The Minerals, Metals & Materials Society (2022).
• T. U. Tumkur, T. Voisin et al., “Nondiffractive beam shaping for enhanced optothermal control in metal additive manufacturing”, Science Advances, 7, (2021)
• J. Ye et al., “Ultra-low-density digitally architected carbon with a strutted tube-in-tube structure”, Nature Materials, 20, 1498–1505 (2021)
• T. Voisin et al., “New insights on cellular structures strengthening mechanisms and thermal stability of an austenitic stainless steel fabricated by laser powder-bed-fusion”, Acta Materialia 203 (2021) 116476.
• T. Voisin et al., “In situ TEM observations of high-strain-rate deformation and fracture in pure copper”, Materials Today, 33, 10-16 (2020)
• W. Chen, T. Voisin et al., “Microscale residual stresses in additively manufactured stainless steel”, Nature Communication, 10(1) ,4338, (2019)
• Z. Li, T. Voisin et al., “Tensile properties, strain rate sensitivity, and activation volume of additively manufactured 316L stainless steels”, International Journal of Plasticity ,120, 395-410, (2019)
• Voisin T. et al., “Near-Net Shaping of Titanium-Aluminum Jet Engine Turbine Blades by SPS” Invited book chapter in Spark Plasma Sintering of Materials: Advances in Processing and Applications, Springer International Publishing, Cham, pp. 713-737, (2019)
• Wang Y. M., Voisin T. et al., “Additively manufactured hierarchical stainless steels with high strength and ductility” Nature Materials (2017)
• Voisin, T. et al., "An innovative way to produce turbine blades in optimized TiAl alloys: the Spark Plasma Sintering" Advanced Engineering Materials 17(10): 1408-1413, (2015)

For a full list, see: https://scholar.google.com/citations?user=7KpFPvIAAAAJ&hl=fr&oi=ao

Patents

• Couret, A., Durand, L., Jabbar, H., Monchoux, J.P., Voisin, T., “Method for manufacturing a part having a complex shape by flash sintering, and device for implementing such a method” WO2012131625 (A2) – 2011-03-31
• Couret, A., Monchoux, J.P., Thomas, M., Voisin, T., “Method for manufacturing a titanium-aluminum alloy part” WO2014199082 (A1) – 2013-06-11

• LLNL/PLS summer directorate award for excellence in Publication (2020)
• LLNL/PLS winter directorate award for excellence in Publication (2020)
• LLNL Director’s award Science and technology excellence in publication (2018)
• LLNL/PLS winter directorate award for excellence in Publication (2018)
• Best oral presentation award at the 6th symposium of the Toulouse materials science doctoral school (2013)