Parametric optimization of wear parameters of hybrid composites (LM6/B4C/fly ash) using Taguchi technique

Wear is prominent in sliding components, so tribology property plays a major role in automotive as well as in the aerospace industries. In this work, Aluminium alloy LM6/B4C/Fly Ash hybrid composites with three different weight percentages of reinforcement were fabricated using the low-cost stir casting technique, and the experiments were conducted based on the Design of Experiments (DoE) approach and optimized using Taguchi’s Signal to noise ratio (S/N) analysis. The analysis was conducted with process parameters like Sliding Speed (S), Sliding distance (D), load (L) and reinforcement percentage (R %), the responses are Coefficient of Friction (COF) and Specific wear rate (SWR). Aluminum alloy reinforced with 9 wt% hybrid (LM6 + 4.5% B4C + 4.5% Fly Ash) has a low density and high hardness compared with other composites and base alloys. The optimum parameters for obtaining minimum SWR are S - 1 m/s, D - 500 m, L - 45 N, and R% - 6 wt% Hybrid (3% Fly ash and 3% boron carbide). The optimum parameters for obtaining minimum COF are S - 1.5 m/s, D - 500 m, L - 30 N, and R% −9 wt% Hybrid (4.5% Fly ash and 4.5% boron carbide). Load (28.34%) is the most significant parameter for obtaining minimum SWR, and DL (31.62%) for obtaining minimum COF. SEM images of the worn pins show the various wear mechanisms of the AMCs. The hybrid composite produced is new and these may be used for piston liner and brake pad applications

Nutritional Content of Underutilized Vegetable Crops: A Source for Nutritional Security and Human Health

Vegetables are essential to a balanced diet and are the primary force behind the achievement of global nutritional security due to their presence of nutrients, vitamins, and minerals. Vegetable crops classified as underused are those that are neither widely traded nor farmed on a commercial basis. Underutilized crop species have the potential to boost the country's economy but have not received enough attention because of a decline in focus on their production, consumption, and utilization. An examination of the literature found that most underutilized crop species are nutritious, and some even have medicinal properties. Vegetables that are underutilized may be significant locally or regionally, but they are typically not valued or approved nationally. The plant species that are traditionally used for food, fiber, fodder, oil, or medicinal purposes are the underutilized vegetable crops. Nonetheless, such species have untapped potential to provide environmental benefits, economic production, nutrition, health, and food security. Using underused crops improves rural populations' health and contributes to the fight against malnutrition-related problems. Unused vegetables are a rich source of energy, fats, proteins, carbohydrates, and vitamins and minerals. These nutrients can help prevent and treat a number of illnesses, including hypertension, cancer, kwashiorkor, marasmus, night blindness, anemia, diabetes, and hidden hunger. Important underutilized vegetable crops include kale, broad beans, asparagus, amaranthus, basella, moringa, ivy gourds, globe artichokes, and others. India's soil and climate are ideal for growing a variety of underutilised vegetables. As a result, the Indian government has started to promote the underutilized vegetables. In conclusion, underutilized vegetable production can help address the shortage of per capita consumption availability and address nutritional issues while creating jobs and raising rural residents' incomes, all of which have the potential to boost the national economy