102 citations · 143 across the 2 of their papers we have counts for
6 papers · 1 filter
Correlating grain boundary character and composition in 3-dimensions using 4D-scanning precession electron diffraction and atom probe tomography
Saurabh M. Das, Patrick Harrison, Srikakulapu Kiranbabu +5
Grain boundaries are dominant imperfections in nanocrystalline materials that form a complex 3-dimensional (3D) network. Solute segregation to grain boundaries is strongly coupled…
Solute hydrogen and deuterium observed at the near atomic scale in high-strength steel
Andrew J. Breen, Leigh T. Stephenson, Binhan Sun +5
Observing solute hydrogen (H) in matter is a formidable challenge, yet, enabling quantitative imaging of H at the atomic-scale is critical to understand its deleterious influence o…
Quantification challenges for atom probe tomography of hydrogen and deuterium in Zircaloy-4
Isabelle Mouton, Andrew J. Breen, Siyang Wang +8
Analysis and understanding of the role of hydrogen in metals is a significant challenge for the future of materials science, and this is a clear objective of recent work in the ato…
Atomic scale analysis of grain boundary deuteride growth front in Zircaloy-4
A. J. Breen, I. Mouton, W. Lu +11
Zircaloy-4 (Zr-1.5%Sn-0.2%Fe-0.1%Cr wt. %) was electrochemically charged with deuterium to create deuterides and subsequently analysed with atom probe tomography and scanning trans…
Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
Yanhong Chang, Andrew J. Breen, Zahra Tarzimoghadam +16
Ti has a high affinity for hydrogen and is a typical hydride formers. Ti-hydride are brittle phases which probably cause premature failure of Ti-alloys. Here, we used atom probe to…
Ab initio explanation of disorder and off-stoichiometry in Fe-Mn-Al-C kappa carbides
P. Dey, R. Nazarov, B. Dutta +6
Carbides play a central role for the strength and ductility in many materials. Simulating the impact of these precipitates on the mechanical performance requires the knowledge abou…