| Abstrakt: |
This study focuses on the fabrication and analysis of aluminum nickel phosphorus bronze (AlNPB) metal matrix composite (MMC), reinforced with synthesized TiCN + SiC nanopowders, for potential ballistic applications. The nanopowders were synthesized via mechanical milling and characterized through PXRD, FTIR, and FESEM analyses. The crystalline size from XRD data averaged 24.8 nm, while the FTIR analysis identified axiometic modes and functional groups of the nanocomposite. SEM images displayed the irregular morphologies of the composite powders. The AlNPB MMC was fabricated by incorporating 2%, 4%, and 6 wt. % of the TiCN + SiC nanocomposite with the bronze alloy, utilizing a stir casting technique. XRD and FESEM results confirmed the formation of the MMC and illustrated the composite's porous morphology. Mechanical performance, including tensile, compression, and hardness tests, showed optimal properties with 4 wt. % reinforcement, yielding a tensile strength of 753 MPa, a hardness of 448 HBW, and compression strength of 77.9 J, coupled with good corrosion resistance. Furthermore, a ballistic analysis of the MMC demonstrated a reduction in residual strain energy after bullet impact on a 4 wt% reinforcement target plate compared to the 2% and 6% TiCN + SiC nanoparticle-reinforced aluminum bronze matrix composites. This study therefore suggests that an AlNPB MMC with 4 wt% reinforcement offers the most promising balance of mechanical properties for ballistic applications. [ABSTRACT FROM AUTHOR] |
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