Structural evolutions of metallic materials processed by severe plastic deformation

Y Cao, S Ni, X Liao, M Song, Y Zhu - Materials Science and Engineering: R …, 2018 - Elsevier
Abstract Bulk nanostructured (ns)/ultrafine-grained (UFG) metallic materials possess very
high strength, making them attractive for high strength, lightweight and energy efficient …

Grain boundary specific segregation in nanocrystalline Fe (Cr)

X Zhou, X Yu, T Kaub, RL Martens, GB Thompson - Scientific reports, 2016 - nature.com
A cross-correlative precession electron diffraction–atom probe tomography investigation of
Cr segregation in a Fe (Cr) nanocrystalline alloy was undertaken. Solute segregation was …

An atom probe study on Nb solute partitioning and nanocrystalline grain stabilization in mechanically alloyed Cu-Nb

M Kapoor, T Kaub, KA Darling, BL Boyce… - Acta Materialia, 2017 - Elsevier
Nb solute behavior and its effect on grain size stabilization in Cu-Nb alloys was studied
using a combination of Vickers hardness testing, x-ray diffraction measurements …

The rise of computational techniques in atom probe microscopy

AV Ceguerra, AJ Breen, LT Stephenson… - Current opinion in solid …, 2013 - Elsevier
Much effort has been devoted to the development of computational techniques in atom
probe microscopy over the past decade. There have been several drivers for this effort …

Mining information from atom probe data

JM Cairney, K Rajan, D Haley, B Gault, PAJ Bagot… - Ultramicroscopy, 2015 - Elsevier
Whilst atom probe tomography (APT) is a powerful technique with the capacity to gather
information containing hundreds of millions of atoms from a single specimen, the ability to …

[HTML][HTML] Interphase boundary segregation in IN738 manufactured via electron-beam powder bed fusion

VV Rielli, M Luo, E Farabi, N Haghdadi, S Primig - Scripta Materialia, 2024 - Elsevier
Electron-beam powder bed fusion (EPBF) has been demonstrated to enable crack-free
additive manufacturing of the traditionally non-weldable IN738 Ni-based superalloy. This is …

Detecting and extracting clusters in atom probe data: A simple, automated method using Voronoi cells

P Felfer, AV Ceguerra, SP Ringer, JM Cairney - Ultramicroscopy, 2015 - Elsevier
The analysis of the formation of clusters in solid solutions is one of the most common uses of
atom probe tomography. Here, we present a method where we use the Voronoi tessellation …

[HTML][HTML] Revealing in-plane grain boundary composition features through machine learning from atom probe tomography data

X Zhou, Y Wei, M Kühbach, H Zhao, F Vogel… - Acta materialia, 2022 - Elsevier
Grain boundaries (GBs) are planar lattice defects that govern the properties of many types of
polycrystalline materials. Hence, their structures have been investigated in great detail …

Complex study of grain boundary segregation in long-term irradiated reactor pressure vessel steels

SV Fedotova, EA Kuleshova, DA Maltsev… - Journal of Nuclear …, 2020 - Elsevier
Grain boundary (GB) embrittlement of reactor pressure vessel steel occurs at the long-term
operation through the radiation-enhanced segregation of impurities. All the known …

On the Heterogeneity of Local Shear Strain Induced by High‐Pressure Torsion

W Jiang, H Zhou, Y Cao, J Nie, Y Li… - Advanced …, 2020 - Wiley Online Library
A ductile duplex stainless steel consisting of a ferrite phase and an austenitic phase is
chosen as a model material to investigate the development of shear strain patterns under …