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Effects of Cu Addition on Nanocluster Formation and Two-Step Aging Behaviors of Al–Mg–Si Alloys

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Abstract:

Two types of nanoclusters, i.e., Cluster (1) and Cluster (2), are detected in both Cu-free and Cu-added alloys. The Cu addition to the Al–Mg–Si alloys highly suppresses the formation of Cluster (1) at the initial stage of natural aging and causes higher peak hardness. The over-aging is suppressed in the Cu-added alloy, showing higher thermal stability.

Keywords: AL-MG-SI ALLOY; CU ADDITION; NANOCLUSTERS; NATURAL AGING; TWO-STEP AGING

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2011.3344

Publication date: 2011-02-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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