Tag: GP zones

One-grain-at-a-time: how in situ EBSD rewrote sink-strength theory for space aluminium

~ Matheus A. Tunes ~ Leave a comment

Ultrafine-grained (UFG) aluminium alloys are strong candidates for space structures: their dense grain-boundary network acts as sinks that absorb radiation-induced defects (more in our perspective review https://doi.org/10.1021/acsmaterialsau.5c00139). But that advantage only survives if the microstructure does — and in Low-Earth Orbit, sunlit components reach ~200 °C, right where severely deformed aluminium begins to recrystallise. The … Continue reading One-grain-at-a-time: how in situ EBSD rewrote sink-strength theory for space aluminium

A new way to “see” inside aluminium alloys

~ Matheus A. Tunes ~ Leave a comment

What if a single microscope image could simultaneously show nanoclusters, dislocations, grain boundaries, and corrosion pores – all in under a minute? We have found a way to do exactly that and we described recently in a paper published it in Small Methods! The method, called differential phase contrast (DPC), is not new to electron … Continue reading A new way to “see” inside aluminium alloys

New Preprint: Unlocking Nanoscale Detail in Aluminium Alloys with DPC Segmentation

~ Matheus A. Tunes ~ Leave a comment

We are pleased to share our latest preprint, now available on arXiv: Unlocking nanoscale microstructural detail in aluminium alloys through differential phase contrast segmentation in STEM (arXiv:2603.11643). In this work, we show how differential phase contrast (DPC) imaging in scanning transmission electron microscopy can be turned into a powerful, quantitative tool for characterising the microstructures … Continue reading New Preprint: Unlocking Nanoscale Detail in Aluminium Alloys with DPC Segmentation