Journal ArticleDOI
FIM/atom probe analysis of a heat treated 7150 aluminum alloy
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TLDR
In this paper, the compositions of the matrix, matrix precipitates, precipitate-free zone (PFZ) and grain boundary precipitates in a heat-treated 7150 Al alloy tempered to peak strength have been quantitatively measured.About:
This article is published in Surface Science.The article was published on 1991-04-03. It has received 33 citations till now. The article focuses on the topics: Grain boundary & Stress corrosion cracking.read more
Citations
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Microstructural Evolution and Age Hardening in Aluminium Alloys: Atom Probe Field-Ion Microscopy and Transmission Electron Microscopy Studies
Simon P. Ringer,Kazuhiro Hono +1 more
TL;DR: In this article, the authors examined the microstructural evolution in selected aluminium alloys based on commercial age hardenable 2000, 6000, and 7000 series alloys and showed that the nature and kinetics of the precipitation process depend on the solute-solute interactions that produce solute clusters.
Journal ArticleDOI
Influence of alloy composition and heat treatment on precipitate composition in Al–Zn–Mg–Cu alloys
TL;DR: In this article, the composition of precipitates in three alloys of the Al-Zn-Mg-Cu system has been investigated for different heat treatments, including peak-aged and over-aged states as well as near-equilibrium conditions, by combining atom probe tomography and systematic anomalous small-angle X-ray scattering experiments.
Journal ArticleDOI
Evolution of precipitate microstructures during the retrogression and re-ageing heat treatment of an Al–Zn–Mg–Cu alloy
TL;DR: Using a combination of experimental techniques, including anomalous small-angle scattering and atom-probe tomography, the evolution of precipitate microstructures during the different steps of retrogression and re-ageing (RRA) heat treatments of an Al-Zn-Mg-Cu alloy has been systematically evaluated as discussed by the authors.
Journal ArticleDOI
Characterisation of the composition and volume fraction of η′ and η precipitates in an Al–Zn–Mg alloy by a combination of atom probe, small-angle X-ray scattering and transmission electron microscopy
TL;DR: In this article, the volume fraction of nanometre size precipitates has been characterised in an Al-Zn-Mg alloy (AA7108.50) in two states of ageing.
Journal ArticleDOI
Nanoscale microstructural analysis of metallic materials by atom probe field ion microscopy
TL;DR: A review of atom probe field ion microscopy (APFIM) and its applications to nanoscale microstructural studies of metallic materials can be found in this article, where the authors highlight recent APFIM and 3DAP investigations conducted in the author's group, which have contributed to our understanding of the microstructure-property relationships in novel nanocrystalline and nanocomposite alloys, as well as conventional metallic materials containing nan-scale precipitates.
References
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Journal ArticleDOI
Microstructures of the commercial 7075 Al alloy in the T651 and T7 tempers
J. K. Park,Alan J. Ardell +1 more
TL;DR: The microstructure of the commercial 7075 Al alloy in the peak aged (T651) and overaged (T7) tempers were studied using transmission electron microscopy as mentioned in this paper.
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Effect of Retrogression and Reaging Treatments on the Microstructure of AI-7075-T651
Joong Keun Park,Aj Ardell +1 more
TL;DR: The effect of retrogression and reaging on the microstructure of Al-7075 in the T651 temper, both in the matrix and on grain boundaries, was studied using transmission electron microscopy as discussed by the authors.
Journal ArticleDOI
Influence of retrogression and reaging treatments on the strength and stress corrosion resistance of aluminium alloy 7075-T6
TL;DR: In this paper, the influence of retrogression and reaging (RRA) treatments on high strength aluminium alloy 7075 was studied using hardness and tensile testing and by measuring the stress corrosion crack growth rate using doublecantilever-beam specimens.
Journal ArticleDOI
Some applications of field-ionization and field-evaporation techniques in the study of surfaces
TL;DR: A brief survey of field ionization and field-evaporation techniques for surface studies is presented in this paper, with selected illustrations of applications to surface studies, including desorption imaging.
Journal ArticleDOI
The preparation of field‐ion‐microscope specimens containing grain boundaries
TL;DR: In this paper, a back polishing technique was devised to increase the efficiency of a field-ion-microscope study of grain boundaries, based on the relationship dmd = 2·5 × 104 nm2/msec.
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