Aluminium (Al)-based metal matrix composites were developed with titanium carbide (TiC) and boron carbide (B₄C) materials as reinforcement. The weight percentages of titanium carbide (1.5%) and boron carbide (0.5%) powder were maintained throughout the process of composite development. Composite process parameters such as powder compaction pressure, sintering temperature and time were varied in different combinations. The prepared composites were mechanically evaluated and metallurgically investigated for their quality. Further, the samples were subjected to electrochemical analysis to study their behaviour in 3.5% sodium chloride (NaCl) solution. From the experimentation, the corrosion potential and current density were measured. Subsequently, the corrosion rate (mm/year) of the material was calculated through its Tafel plot. The composite processed at a sintering temperature of 630°C for a duration of 135 min had higher corrosion resistance, with a minimum corrosion rate of 1.699 mm/year. The electrical resistance also increased over the exposed surface with a minimum current density of 0.15 mA/cm². Scanning electron microscopy and energy-dispersive spectroscopy (EDS) were used to determine the metallurgical quality of the exposed surface. The oxide formation was observed on the exposed surface in the process of corrosion. The element aluminium and oxygen were found on the surface which denotes that the Aluminium oxide formed on the exposed surface. From the results, a discussion is presented confirming the influence of composite powder processing parameters.

中文翻译：

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TiC和B4C增强Al基金属基复合材料的合成及电化学行为

使用碳化钛（TiC）和碳化硼（B ₄C）材料作补强。在整个复合材料开发过程中，始终保持碳化钛（1.5％）和碳化硼（0.5％）粉末的重量百分比。复合工艺参数如粉末压实压力，烧结温度和时间以不同的组合变化。机械评估所制备的复合材料，并对其质量进行冶金研究。此外，对样品进行电化学分析，以研究其在3.5％氯化钠（NaCl）溶液中的行为。通过实验，测量了腐蚀电位和电流密度。随后，通过其塔菲尔图计算出材料的腐蚀速率（毫米/年）。在630°C的烧结温度下处理135分钟的复合材料具有更高的耐腐蚀性，最低腐蚀速率为1.699毫米/年。裸露表面上的电阻也有所增加，最小电流密度为0.15 mA / cm²。扫描电子显微镜和能量色散光谱法（EDS）用于确定暴露表面的冶金质量。在腐蚀过程中，在暴露的表面上观察到氧化物的形成。在表面发现铝和氧元素，这表示在暴露的表面上形成了氧化铝。根据结果​​，进行了讨论，以确认复合粉末加工参数的影响。