In this study, the gravitating mechanical stir casting method was used to fabricating the Nb<sub>2</sub>O<sub>5</sub>/AZ31 magnesium matrix nanocomposites. Niobium pentoxide (Nb<sub>2</sub>O<sub>5</sub>)...
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https://www.riss.kr/link?id=A108342069
2022
English
학술저널
407-416(10쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
In this study, the gravitating mechanical stir casting method was used to fabricating the Nb<sub>2</sub>O<sub>5</sub>/AZ31 magnesium matrix nanocomposites. Niobium pentoxide (Nb<sub>2</sub>O<sub>5</sub>)...
In this study, the gravitating mechanical stir casting method was used to fabricating the Nb<sub>2</sub>O<sub>5</sub>/AZ31 magnesium matrix nanocomposites. Niobium pentoxide (Nb<sub>2</sub>O<sub>5</sub>) used as reinforcement with two different weight percentages (3 wt % and 6 wt %). The influence of Nb<sub>2</sub>O<sub>5</sub> on microstructure and mechanical properties has been investigated. The microstructure analysis showed that the composites are mainly composed of the primary α-magnesium phase and phase β-Mg<sub>17</sub>Al<sub>12</sub> secondary phase. The secondary phase was dispersed evenly along the grain boundary of the Mg phase. The Nb<sub>2</sub>O<sub>5</sub>/AZ31 nanocomposites revealed that the grain size and its lamellar shape (β-Mg<sub>17</sub>Al<sub>12</sub>) were gradually refined. Different strengthening mechanisms were assessed in terms of their contributions. Results showed that composite material properties of hardness, yield strength, and fracture study were directly related to Nb<sub>2</sub>O<sub>5</sub> as a reinforcement. The maximum values of the mechanical properties were achieved with the addition of 3 wt% Nb<sub>2</sub>O<sub>5</sub> on the AZ31 alloy.
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