Preparation of Dispersion Strengthened Aluminum Alloy by High Energy Ball Milling

Abstract:

In order to develop a high-strength aluminum alloy, alumina dispersion strengthened aluminum alloy was prepared by high energy ball milling on 2024 aluminum alloy powder in ethanol. The microstructure, particle size and distribution of the Al2O3 particles in the alloy were analyzed by FE-SEM; the mechanical properties were investigated. Results showed that alumina dispersion strengthened aluminum alloy was prepared successfully by high energy ball milling, the Al2O3 particles of several tens of nm in diameter were homogeneously distributed in the matrix grain and the spatial distance between particles was about 50-100nm. The yield strength and elongation of alumina oxide dispersion strengthened aluminum alloy were 489MPa and 7.9%.

• Periodical: Advanced Materials Research (Volumes 602-604)
• Pages: 598-601
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.602-604.598
• Online since: December 2012
• Authors: Hui Qin Cao, Ji Luo, Wei Wei Yang
• Keywords: Dispersion-Strengthened, High Energy Ball Milling, High-Strength Aluminum Alloy, Mechanical Property

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