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논문 기본 정보

자료유형
학술저널
저자정보
Essam B. Moustafa (King Abdulaziz University) Waheed Sami Abushanab (King Abdulaziz University) Emad Ismat Ghandourah (King Abdulaziz University) Mohammed A. Taha (National Research Centre) Ahmed O. Mosleh (Benha University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.30 No.3
발행연도
2024.3
수록면
800 - 813 (14page)
DOI
10.1007/s12540-023-01541-4

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Niobium carbide (NbC) is a ceramic material that enhances the mechanical properties of advanced composites by restrictinggrain growth during recrystallization. This study aimed to improve the properties of aluminum-AA2024 hybrid compositesby hybridizing NbC with three nanoceramic reinforcement particles (Al2O3, BN, and SiC). Friction stir processing (FSP) wasused to fabricate the hybrid composites. This technique produces a hybrid composite with a better homogeneous distributionthan other methods. The mechanical properties and microstructure of the hybrid composites were studied. The resultsshowed that the static modulus of elasticity and compressive stress improved by ~ 23.6% and ~ 24% more for the AA2024/NbC + SiC hybrid composite than the base alloy. The microhardness of the fabricated hybrid surface composites is improvedby an average of 41.5% more than the base alloy. The relationship between strain hardening and grain size showed that agrain size reduction reduced strain hardening and increased yield strength. The bulk density of AA2024/NbC + Al2O3has thehighest value of (3.04 g/cm3), while AA2024/NbC + SiC and AA2024/NbC + BN have 2.97 g/cm3 and 2.88 g/cm3, respectively. Furthermore, the electrical conductivity of the AA2024/NbC + SiC has the highest value among hybrid composites;however, it was still less than the AA2024 base alloy by 13.8%. The results showed that the hybrid composites fabricated byFSP have improved mechanical properties and microstructure compared to the base alloy; hence, the AA2024/NbC + SiChybrid composite has the best overall properties.

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