Journal ArticleDOI
Quantitative methods for the APT analysis of thermally aged RPV steels
TLDR
A method is presented for identifying "background" statistical clusters in real APT data sets, based upon their size and composition, which allows for improved sensitivity to small clusters.About:
This article is published in Ultramicroscopy.The article was published on 2013-09-01. It has received 40 citations till now.read more
Citations
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Journal ArticleDOI
Analysis of strengthening in AA6111 during the early stages of aging: atom probe tomography and yield stress modelling
TL;DR: In this paper, a series of aging treatments has been conducted on AA6111 alloy samples for various times at ambient temperature (so-called natural aging) and at temperatures between 60 and 180 °C (artificially aged).
Journal ArticleDOI
Evolution of manganese–nickel–silicon-dominated phases in highly irradiated reactor pressure vessel steels
Peter B. Wells,Takuya Yamamoto,Brandon D. Miller,Tim Milot,James I. Cole,Yuan Wu,G. Robert Odette +6 more
TL;DR: In this article, Atom probe tomography was used to study the formation of Mn-Ni-Si-dominated precipitates in irradiated Cu-free and Cu-bearing reactor pressure vessel steels.
Journal ArticleDOI
Ion-irradiation-induced clustering in W–Re and W–Re–Os alloys: A comparative study using atom probe tomography and nanoindentation measurements
Alan Xu,Christian E. Beck,David E.J. Armstrong,Krishna Rajan,George Davey Smith,Paul A. J. Bagot,Steve G. Roberts,Steve G. Roberts +7 more
TL;DR: In this paper, the authors examined clustering and hardening in W 2 at.% Re and W 1 at.% Os alloys induced by 2 MeV W + ion irradiation at 573 and 773 K. They found that the presence of osmium significantly increased post-irradiation hardening.
Journal ArticleDOI
The Comparison of Microstructure and Nanocluster Evolution in Proton and Neutron Irradiated Fe–9%Cr ODS Steel to 3 DPA at 500 °C
TL;DR: In this article, a model Fe-9%Cr oxide dispersion strengthened (ODS) steel was irradiated with protons or neutrons to a dose of 3 displacements per atom (dpa) at a temperature of 500°C, enabling a direct comparison of ion to neutron irradiation effects at otherwise fixed irradiation conditions.
Journal ArticleDOI
Thermodynamics and kinetics of core-shell versus appendage co-precipitation morphologies: An example in the Fe-Cu-Mn-Ni-Si system
TL;DR: In this article, the interplay between interfacial and ordering energies, plus active diffusion paths, strongly affect the selection of core-shell versus appendage morphologies in co-precipitating alloy systems.
References
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Journal ArticleDOI
A procedure for quantification of precipitate microstructures from three-dimensional atom probe data
TL;DR: New analysis software for selecting and quantifying particles in three-dimensional atom maps has been designed and examples are presented on the application of this new software to the analysis of early stage clustering in an Al-Mg-Si-Cu alloy and a copper-containing steel.
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New Techniques for the Analysis of Fine-Scaled Clustering Phenomena within Atom Probe Tomography (APT) Data
TL;DR: An objective procedure for the selection of parameters based on approximating the data with a model of complete spatial randomness is developed and applied, and the use of higher nearest neighbor distributions is highlighted to give insight into the nature of the clustering phenomena present in a system and to generalize the clustered algorithms used to analyze it.
Journal ArticleDOI
Applications of atom-probe tomography to the characterisation of solute behaviours
TL;DR: In many materials, mechanistic understanding of material microstructure/property relationships requires knowledge of alloy structures at the atomic scale as mentioned in this paper, which remains one of the main challenges of materials science.
Journal ArticleDOI
Embrittlement of RPV steels: An atom probe tomography perspective
Michael K Miller,Kaye F Russell +1 more
TL;DR: Atom probe tomography has played a key role in the understanding of the embrittlement of neutron irradiated reactor pressure vessel steels through the atomic level characterization of the microstructure as mentioned in this paper.
Journal ArticleDOI
Solute clustering in Al–Cu–Mg alloys during the early stages of elevated temperature ageing
TL;DR: The evolution of atomistic-level nanostructure during the early stages of elevated temperature ageing of rapid hardening (RH) Al-Cu-Mg alloys has been characterised by a combination of atom probe tomography (APT), transmission electron microscopy (TEM) and positron annihilation spectroscopy (PAS) analysis as mentioned in this paper.