The influence of adding B4C particulates with a 40 and 90 µm sizes on the compressive strength, tensile strength and impact toughness of the A356 alloy is being studied. In the Al alloy matrix, 40 and 90 µm -sized micro B4C particulates are employed as reinforcements. In the A356 alloy, composites are created utilizing the liquid melt process in increments of 3 and 6 weight percent. Using an energy dispersive spectroscope (EDS) and a scanning electron microscope (SEM), samples are examined for microstructural characterization. According to ASTM standards, mechanical characteristics including tensile, hardness, compression, and toughness are assessed. The consistent distribution of B4C particles in the A356 alloy is seen in SEM micrographs, and this is supported by EDS analysis. Additionally, the inclusion of B4C reinforcement improves the compression and impact strength of the base matrix A356 alloy, which is especially noticeable in the case of reinforced composites that are 6 wt. % of 40 µm B4C in size.

Increased interest in polymer composites filled with natural organic fillers, fillers derived from renewable sources and biodegradable, has resulted from growing concern about environmental concerns and, on the other hand, the desire for more adaptable polymer-based materials. The composites, which are often, referred to as "Green," have a wide range of industrial uses. This research conducts a literature assessment in the wide field of green composites in order to identify materials with the potential to be used on automobile body panels in the near future. Materials derived from renewable resources will be favoured over finite fossil goods from now on. When the polymer matrix is biodegradable and originates from renewable sources, these composites may be even more environmentally beneficial. This rapid overview (with no pretence of exhaustiveness over such a big issue) demonstrates the major routes and findings of study (both academic and industry) on this relevant subject, as well as acceptable sources for further in-depth studies.