199 citations · 1.1k across the 16 of their papers we have counts for
17 papers
Atom probe characterisation of segregation driven Cu and Mn-Ni-Si co-precipitation in neutron irradiated T91 tempered-martensitic steel
T. P. Davis, M. A. Auger, N. Almirall +5
The T91 grade and similar 9Cr tempered-martensitic steels (also known as ferritic-martensitic) are leading candidate structural alloys for fast fission nuclear and fusion power rea…
DF-Fit : A robust algorithm for detection of crystallographic information in Atom Probe Tomography data
Daniel Haley, Paul A. J. Bagot, Michael P. Moody
We report on a new algorithm for detection of crystallographic information in 3D, as retained in Atom Probe Tomography (APT), with improved robustness and signal detection performa…
A gas-phase reaction cell for modern Atom Probe systems
Daniel Haley, Ingrid McCarrol, Paul. A. J. Bagot +2
In this work, we demonstrate a new system for the examination of gas interactions with surfaces via Atom Probe Tomography. This system provides the capability to examine the surfac…
On the effect of Ti on Oxidation Behaviour of a Polycrystalline Nickel-based Superalloy
S. Pedrazzini, B. S. Rowlands, A. Turk +6
Titanium is commonly added to nickel superalloys but has a well-documented detrimental effect on oxidation resistance. The present work constitutes the first atomistic-scale quanti…
Reflections on the analysis of interfaces and grain boundaries by atom probe tomography
Benjamin M. Jenkins, Frédéric Danoix, Mohamed Gouné +4
Interfaces play critical roles in materials, and are usually both structurally and compositionally complex microstructural features. The precise characterization of their nature in…
The Kinetics of Primary Alpha Plate Growth in Titanium Alloys
Abigail K Ackerman, Alexander J. Knowles, Hazel M. Gardner +8
The kinetics of primary alpha-Ti colony/Widmanstatten plate growth from the beta are examined, comparing model to experiment. The plate growth velocity depends sensitively both on…
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…
Extending Continuum Models for Atom Probe Simulation
Daniel Haley, Paul A. J. Bagot, Michael P. Moody
This work describes extensions to existing level-set algorithms developed for application within the field of Atom Probe Tomography (APT). We present a new simulation tool for the…
Atom Probe Analysis of Ex Situ Gas-Charged Stable Hydrides
Daniel Haley, Paul A. J. Bagot, Michael P. Moody
In this work, we report on the atom probe tomography analysis of two metallic hydrides formed by pressurized charging using an ex situ hydrogen charging cell, in the pressure range…
A nexus between 3D atomistic data hybrids derived from atom probe microscopy and computational materials science: a new analysis of solute clustering in Al-alloys
Baptiste Gault, Xiang Yuan Cui, Michael P. Moody +4
Solute clusters affect the physical properties of alloys. Knowledge of the atomic structure of solute clusters is a prerequisite for material optimisation. In this study, solute cl…
Behavior of molecules and molecular ions near a field emitter
Baptiste Gault, David W. Saxey, Michael V. Ashton +4
The cold emission of particles from surfaces under intense electric fields is a process which underpins a variety of applications including atom probe tomography (APT), an analytic…
Atom probe microscopy investigation of Mg site occupancy within δ precipitates in an Al Mg Li alloy
Baptiste Gault, Xiang Yuan Cui, Michael P. Moody +4
The composition and site occupancy of Mg within ordered δ precipitates in a model Al Mg Li alloy have been characterized by atom probe microscopy and first-principles simulations.…
Spatial resolution in atom probe tomography
Baptiste Gault, Michael P. Moody, Frederic de Geuser +4
This article addresses gaps in definitions and a lack of standard measurement techniques to assess the spatial resolution in atom probe tomography. This resolution is known to be a…
Estimation of the reconstruction parameters for Atom Probe Tomography
Baptiste Gault, Frederic De Geuser, Leigh T. Stephenson +3
The application of wide field-of-view detection systems to atom probe experiments emphasizes the importance of careful parameter selection in the tomographic reconstruction of the…
Dynamic reconstruction for atom probe tomography
Baptiste Gault, Shyeh Tjing Loi, Vicente J. Araullo-Peters +7
Progress in the reconstruction for atom probe tomography has been limited since the first implementation of the protocol proposed by Bas et al. in 1995. This approach, and those su…
Structural, electronic, and optical properties of -plane InGaN/GaN quantum wells: Insights from experiment and atomistic theory
S. Schulz, D. P. Tanner, E. P. O'Reilly +13
In this paper we present a detailed analysis of the structural, electronic, and optical properties of an -plane (In,Ga)N/GaN quantum well structure grown by metal organic vapor…
From solid solution to cluster formation of Fe and Cr in -Zr
P. A. Burr, M. R. Wenman, B. Gault +6
To understand the mechanisms by which Fe and Cr additions increase the corrosion rate of irradiated Zr alloys, a combination of experimental (atom probe tomography, x-ray diffracti…