Development of metal matrix composites suitable for hulls and ship decks

This study investigated the fabrication of Aluminium Metal Matrix Composites based on the AA5083-H111 alloy, specifically reinforcing the joint region using Friction Stir Processing for potential application in marine and aerospace structures like ship hulls. The research aimed to address the critical gap concerning AA5083 reinforced with coal as an alternative, cost-effective, and sustainable material, using Silicon Carbide as a benchmark for comparison. The fabrication resulted in two composite types, AA5083/SiC and AA5083/Coal, which were compared to the unreinforced base alloy through a comprehensive suite of tests, including tensile, flexural, hardness, and microstructural analysis .

本研究围绕基于AA5083-H111铝合金的铝基复合材料（Aluminium Metal Matrix Composites）的制备展开探究，采用搅拌摩擦加工（Friction Stir Processing）对接头区域进行增强处理，以适配船舶与航空航天结构（如船体）的潜在应用需求。本研究旨在填补以煤炭作为增强相的AA5083复合材料的研究空白，开发兼具成本效益与可持续性的替代增强材料，并以碳化硅（Silicon Carbide）作为对照基准开展对比实验。本次制备共获得两种复合材料，分别为AA5083/SiC与AA5083/Coal，随后通过拉伸试验、弯曲试验、硬度测试及微观组织分析等一系列全面测试，与未增强的原始合金进行性能对比。