A transmission electron microscopy study of precipitate phases that form during operation in a heat exchanger alloy

condition. HAADF STEM images of precipitates from the three investigated alloys. The precipitates chosen are typical for the respective alloy and shows that the addition of Ge and

A detailed high-angle annular dark-field scanning transmission electron microscopy study shows that most of the needle-shaped hardening precipitates β" (~82%)

It is observed that the precipitate statistics in the studied region of the in situ heated lamella (thickness ∼ 90 nm) showed a more refined microstructure of smaller

When a sheared precipitate is observed along the needle lengths using HRTEM or HAADF STEM, the images will contain regions that are a mix of β″ and matrix structures (from the

Figure 6: Three unprocessed HAADF-STEM images of typical precipitate cross sections in the A356 with 0.5 wt% Cu after 6 hours artificial ageing. a) Disordered precipitate cross

g hardening precipitates with structures similar to those reported before were observed in all conditions. An example is.. BF-STEM micrographs from the AC-T4 condition, showing

This allowed evaluation of both the crystal structure in individual precipitates, as well as a quantitative analysis of precipitate phase fractions using a substantial number

In this paper, we present the first aberration corrected atomic resolution high-angle annular dark-field (HAADF) scanning transmission electron microscopy (STEM) images of a