Article ID Journal Published Year Pages File Type
1499193 Scripta Materialia 2013 4 Pages PDF
Abstract

The influence of the thermal route on the peak-aged microstructures in an Al–Mg–Si aluminum alloy was investigated by atom probe tomography and transmission electron microscopy. Direct artificial aging induced a monomodal size distribution of β″-precipitates, while for artificial aging after natural pre-aging a bimodal size distribution was found. This difference can be explained by the impact of lattice defects on the β″-nucleation. β″ is supposed to contain Al and exhibits a high Mg/Si ratio in the studied alloy.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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