J.S. Vetrano

TL;DR: In this article, the progress of Mg enrichment at grain boundaries was measured for increasing thermal-treatment times, using auger electron spectroscopy (AES) of grain boundaries exposed by fracture within the spectrometer and by analytical electron microscopy of thin foils.

TL;DR: Bonnell et al. as discussed by the authors present the authors' viewpoint on the material characterization field, reviewing its recent past, evaluating its present capabilities, and proposing directions for its future development, including suggestions for instrumentation advances, scientific problems in microstructure analysis, and complex structure evolution problems involving material damage.

TL;DR: In this article, a number of experiments have been performed to investigate the collapse of defect cascades to dislocation loops at the Argonne National Laboratory High Voltage Electron Microscope-Ion Accelerator Facility at temperatures of 30 and 300/sup 0/K in some materials (Ni, Cu, and Fe), while in another material (Fe) only overlapped cascades produced dislocations loops.

TL;DR: In this paper, the Mg-rich β-phase (Al3Mg2) at grain boundaries of Al-Mg alloys and the γ-phase(Mg17Al12), which is cathodic (noble) to the matrix, was shown to produce localized galvanic-induced corrosion that leads to intergranular stress corrosion cracking and crack growth rates of 350 and 1,800 times faster than the solution-treated condition, for Al-mg and MgAl, respectively.

TL;DR: In this article, a combination of optical and transmission electron microscopy of interrupted heating tests, changes in hardness, and in-situ observations in the transmission electron microscope was used for grain growth studies of Al-Mg-X alloys.