Jenkins, B. M.; Haley, J.; Chen, L.; Gault, B.; Burr, P. A.; Callow, A.; Moody, M. P.; Grovenor, C. R.M.: Experimental and modelling evidence for hydrogen trapping at a β-Nb second phase particle and Nb-rich nanoclusters in neutron-irradiated low Sn ZIRLO. Journal of Nuclear Materials 587, 154755 (2023)
Woods, E.; Singh, M. P.; Kim, S.-H.; Schwarz, T.; Douglas, J. O.; El-Zoka, A.; Giulani, F.; Gault, B.: A versatile and reproducible cryo-sample preparation methodology for atom probe studies. Microscopy and Microanalysis, ozad120 29 (6), pp. 1992 - 2003 (2023)
Buttard, M.; López Freixes, M.; Josserond, C.; Donnadieu, P.; Chéhab, B.; Blandin, J.-J.; Gault, B.; De Geuser, F.; Martin, G.: Ageing response and strengthening mechanisms in a new Al–Mn–Ni–Cu–Zr alloy designed for laser powder bed fusion. Acta Materialia 259, 119271 (2023)
Dubosq, R.; Schneider, D.; Alfredo, C.; Gault, B.: Strain hardening induced by crystal plasticity: A new mechanism for brittle failure in garnets. Earth and Planetary Science Letters 617, 118273 (2023)
Khanchandani, H.; Gault, B.: Atomic scale understanding of the role of hydrogen and oxygen segregation in the embrittlement of grain boundaries in a twinning induced plasticity steel. Scripta Materialia 234, 115593 (2023)
Rao, Z.; Li, Y.; Zhang, H.; Colnaghi, T.; Marek, A.; Rampp, M.; Gault, B.: Direct recognition of crystal structures via three-dimensional convolutional neural networks with high accuracy and tolerance to random displacements and missing atoms. Scripta Materialia 234, 115542 (2023)
Douglas, J.; El-Zoka, A.; Conroy, M.; Giuliani, F.; Gault, B.: Development of Site Specific Cryogenic Specimen Preparation and Transfer of Frozen Liquids for Complementary High-Resolution Analysis by Scanning Transmission Electron Microscopy and Atom Probe Tomography. Microscopy and Microanalysis 29 (Supplement_1), pp. 1700 - 1701 (2023)
Pedrazzini, S.; Pek, M.; Ackerman, A.; Cheng, Q.; Ali, H.; Ghadbeigi, H.; Mumtaz, K.; Dessolier, T.; Britton, B.; Bajaj, P.et al.; Aime Jägle, E.; Gault, B.; London, A. J.; Galindo-Nava, E.: Effect of Substrate Bed Temperature on Solute Segregation and Mechanical Properties in Ti–6Al–4V Produced by Laser Powder Bed Fusion. Metallurgical and Materials Transactions A 54 (8), pp. 3069 - 3085 (2023)
Yoo, S.-H.; Aota, L. S.; Shin, S.; El-Zoka, A. A.; Kang, P. W.; Lee, Y.; Lee, H.; Kim, S.-H.; Gault, B.: Dopant Evolution in Electrocatalysts after Hydrogen Oxidation Reaction in an Alkaline Environment. ACS Energy Letters 8 (8), pp. 3381 - 3386 (2023)
Vurpillot, F.; Rousseau, L.; Hatzoglou, C.; Normand, A.; Gault, B.; Cerezo, A.: Beyond Atom Mapping in Atom Probe Tomography Using Field Evaporation Energy Loss Spectroscopy. Microscopy and Microanalysis 29 (Supplement_1), pp. 605 - 606 (2023)
Schwarz, T.; Yu, W.; Zhan, H.; Gault, B.; Gourlay, C.; McCarroll, I.: Uncovering Ce-rich clusters and their role in precipitation strengthening of an AE44 alloy. Scripta Materialia 232, 115498 (2023)
Hydrogen in aluminium can cause embrittlement and critical failure. However, the behaviour of hydrogen in aluminium was not yet understood. Scientists at the Max-Planck-Institut für Eisenforschung were able to locate hydrogen inside aluminium’s microstructure and designed strategies to trap the hydrogen atoms inside the microstructure. This can…
Hydrogen induced embrittlement of metals is one of the long standing unresolved problems in Materials Science. A hierarchical multiscale approach is used to investigate the underlying atomistic mechanisms.
For understanding the underlying hydrogen embrittlement mechanism in transformation-induced plasticity steels, the process of damage evolution in a model austenite/martensite dual-phase microstructure following hydrogenation was investigated through multi-scale electron channelling contrast imaging and in situ optical microscopy.
We will investigate the electrothermomechanical response of individual metallic nanowires as a function of microstructural interfaces from the growth processes. This will be accomplished using in situ SEM 4-point probe-based electrical resistivity measurements and 2-point probe-based impedance measurements, as a function of mechanical strain and…
The project aims to study corrosion, a detrimental process with an enormous impact on global economy, by combining denstiy-functional theory calculations with thermodynamic concepts.
Hydrogen embrittlement affects high-strength ferrite/martensite dual-phase (DP) steels. The associated micromechanisms which lead to failure have not been fully clarified yet. Here we present a quantitative micromechanical analysis of the microstructural damage phenomena in a model DP steel in the presence of hydrogen.
This project will aim at developing MEMS based nanoforce sensors with capacitive sensing capabilities. The nanoforce sensors will be further incorporated with in situ SEM and TEM small scale testing systems, for allowing simultaneous visualization of the deformation process during mechanical tests
Understanding hydrogen-assisted embrittlement of advanced structural materials is essential for enabling future hydrogen-based energy industries. A crucially important phenomenon in this context is the delayed fracture in high-strength structural materials. Factors affecting the hydrogen embrittlement are the hydrogen content,...
Thermo-chemo-mechanical interactions due to thermally activated and/or mechanically induced processes govern the constitutive behaviour of metallic alloys during production and in service. Understanding these mechanisms and their influence on the material behaviour is of very high relevance for designing new alloys and corresponding…