Mechanical Properties of Aluminium Metal Matrix Nanocomposites Manufactured by Assisted-Flake Powder Thixoforming Process

Saud M. Almotairy; A. Fadavi Boostani; M. Hassani; D. Wei; Z. Y. Jiang

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자료유형: 학술저널

저자정보: Saud M. Almotairy (University of Wollongong) A. Fadavi Boostani (Islamic Azad University) M. Hassani (Islamic Azad University) D. Wei (University of Technology Sydney) Z. Y. Jiang (University of Wollongong)

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.27 No.5

발행연도: 2021.1

수록면: 851 - 859 (9page)

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This study discusses the superior effect of thixoforming process on enhancing the tensile properties of aluminium matrixcomposite produced using flake metallurgy route. The flake metallurgy process was utilised to manufacture aluminiummatrix composites followed by thixoforming process. Microstructural investigations carried out using transmission electronmicroscope have shown the synergic effect of thixoforming process on rendering uniform distribution of SiC nanoparticlesassociated with lower porosity content. X-ray diffraction characterisations have revealed the promising effect of uniformdispersion of SiC nanoparticles on restricting the grain growth of aluminium matrix within nanoscale regime (90 nm) evenat high semi-solid thixoforming temperatures (575 °C). The achieved results of tensile tests have shown a profound effect offlake metallurgy of aluminium powder through dual speed ball milling. These results are higher than those achieved by lowspeed and high speed even with higher SiC content. This was attributed to the uniform confinement of SiC nanoparticleswithin the samples produced using flake-assisted forming process compared to the ones manufactured using ball millingassistedprocesses.

#Thixoforming · Metal matrix composites · Mechanical properties · Powder metallurgy · Ball milling speed

참고문헌 (27)

참고문헌 신청

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