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Composition Distribution Simulation of Al-Cu-Mg-Ag Alloy based on Phase-Field Method during Solidification
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Composition Distribution Simulation of Al-Cu-Mg-Ag Alloy based on Phase-Field Method during Solidification
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Journal Article
Composition Distribution Simulation of Al-Cu-Mg-Ag Alloy based on Phase-Field Method during Solidification
2025
Overview
Al-Cu-Mg-Ag alloys are widely used in aerospace due to their excellent heat resistance, high specific strength, and good machinability. In solidification, the compositional distribution and segregation of the alloy play an important role in its properties. Therefore, in this paper, the solidification phase field model was established by using the phase field method to simulate the compositional distribution of the alloy after solidification. The experiments show that the solutes are expelled during the advancement of the interface to the liquid phase, and that the content of each element is higher in the intergranular than in the intragranular, with the most severe enrichment of Cu, which exists in the form of θ-phase, and a lesser enrichment of Si, with respect to the Mg and Ag elements. The experimental results are in full agreement with the pattern predicted by simulations.
Publisher
IOP Publishing
Subject
