Atom probe tomography

B Gault, A Chiaramonti, O Cojocaru-Mirédin… - Nature Reviews …, 2021 - nature.com
Atom probe tomography (APT) provides three-dimensional compositional map** with sub-
nanometre resolution. The sensitivity of APT is in the range of parts per million for all …

Physical metallurgy of medium-Mn advanced high-strength steels

B Sun, A Kwiatkowski da Silva, Y Wu, Y Ma… - International …, 2023 - Taylor & Francis
Steels with medium manganese (Mn) content (3∼ 12 wt-%) have emerged as a new alloy
class and received considerable attention during the last decade. The microstructure and …

Stacking fault energy in concentrated alloys

M Shih, J Miao, M Mills, M Ghazisaeidi - Nature communications, 2021 - nature.com
We revisit the meaning of stacking fault energy (SFE) and the assumptions of equilibrium
dissociation of lattice dislocations in concentrated alloys. SFE is a unique value in pure …

Revealing nano-chemistry at lattice defects in thermoelectric materials using atom probe tomography

Y Yu, C Zhou, S Zhang, M Zhu, M Wuttig, C Scheu… - Materials Today, 2020 - Elsevier
The population of all non-equilibrium lattice defects in materials is referred to as
microstructure. Examples are point defects such as substitutional and interstitial atoms, and …

Multiscale analysis of grain boundary microstructure in high strength 7xxx Al alloys

A Garner, R Euesden, Y Yao, Y Aboura, H Zhao… - Acta Materialia, 2021 - Elsevier
The size, distribution and chemical composition of grain boundary η-phase precipitates
(GBPs) and micro-segregation present in thick plate (140 mm) 7xxx Al alloys has been …

Control of thermally stable core-shell nano-precipitates in additively manufactured Al-Sc-Zr alloys

P Kürnsteiner, P Bajaj, A Gupta, MB Wilms… - Additive …, 2020 - Elsevier
Abstract Laser Additive Manufacturing (LAM) of light metals such as high-strength Al-based
alloys offers tremendous potential for eg weight reduction and associated reduced fuel …

[HTML][HTML] Effect of cooling rate on the composition and chemical heterogeneity of quench-induced grain boundary η-phase precipitates in 7xxx aluminium alloys

Y Yao, R Euesden, ME Curd, C Liu, A Garner… - Acta Materialia, 2024 - Elsevier
The mechanical properties and stress corrosion cracking (SCC) resistance of 7xxx series
aluminium alloys are significantly affected by the composition and distribution of precipitates …

Reversion and re-aging of a peak aged Al-Zn-Mg-Cu alloy

H Zhao, B Gault, D Ponge, D Raabe - Scripta Materialia, 2020 - Elsevier
Abstract High-strength Al-Zn-Mg-Cu alloys are highly susceptible to stress corrosion
cracking (SCC) which severely limits their lifetime. Reversion and re-aging (RRA) temper …

Quantitative analysis of grain boundary diffusion, segregation and precipitation at a sub-nanometer scale

Z Peng, T Meiners, Y Lu, CH Liebscher, A Kostka… - Acta Materialia, 2022 - Elsevier
Grain boundaries are intrinsic and omnipresent microstructural imperfections in
polycrystalline and nanocrystalline materials. They are short-circuit diffusion paths and …

Building practical descriptors for defect engineering of electrocatalytic materials

R Chattot, P Bordet, I Martens, J Drnec, L Dubau… - ACS …, 2020 - ACS Publications
Defect engineering has recently gained considerable interest in electrocatalysis by
extending the portfolio of materials' design strategies toward more efficient and sustainable …