Synergetic grain refinement and ZrB 2 hardening in in-situ ZrB 2/AA4032-type composites by ultrasonic assisted melt treatment S. Chankitmunkong, D. G. Eskin, C. Limmaneevichitr, P. Pandee
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ArticleContent type: Текст Media type: электронный Subject(s): композиционные материалы с алюминиевой матрицей | ультразвуковая обработка расплава | наночастицы | армированиеGenre/Form: статьи в журналах Online resources: Click here to access online
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Journal of materials research and technology Vol. 24. P. 2879-2890Abstract: In this work, the effects of ultrasonic treatment on in-situ ZrB2 particle-reinforced AA4032-based composites were studied. The composites were synthesized from AleK2ZrF6eKBF4 system via an in-situ melt reaction. The phase composition, macrostructure characteristics, hardness and tensile properties of the composites were investigated. The results showed that the addition of in-situ submicron ZrB2 particles into the composites resulted in grain refinement, and the increased hardness and tensile properties. The ultrasonic treatment effectively enhanced the uniformity of in-situ ZrB2 distribution, which further enhanced the structure and mechanical properties of the composites. The mechanisms of the ultrasonic treatment in the improvement of in-situ particle distribution and mechanical properties of the composites were discussed.
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In this work, the effects of ultrasonic treatment on in-situ ZrB2 particle-reinforced AA4032-based composites were studied. The composites were synthesized from AleK2ZrF6eKBF4 system via an in-situ melt reaction. The phase composition, macrostructure characteristics, hardness and tensile properties of the composites were investigated. The results showed that the addition of in-situ submicron ZrB2 particles into the composites resulted in grain refinement, and the increased hardness and tensile properties. The ultrasonic treatment effectively enhanced the uniformity of in-situ ZrB2 distribution, which further enhanced the structure and mechanical properties of the composites. The mechanisms of the ultrasonic treatment in the improvement of in-situ particle distribution and mechanical properties of the composites were discussed.
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