This research examines the performance of epoxy, ceramic, and graphene coatings on stainless steel 316 in a producer gas environment, focusing on corrosion and erosion resistance. This research aimed to identify the most effective coating for applications in harsh gasification environments. In this research, various analyses, including microstructural examination, hardness and weight measurements, FESEM analysis, and EDAX analysis, were conducted to evaluate the performance of the coatings. The producer gas was passed on to all the coated samples for a period of 100 h. The significant findings include the superior corrosion and erosion resistance of ceramic-coated stainless steel, as evidenced by low weight fluctuations, maintained hardness levels, and elemental stability. Graphene coatings exhibit high hardness but increased porosity, raising concerns about durability, while epoxy coatings are vulnerable to gas-induced structural alterations. The inclusion rating analysis underscored the ceramic coatings’ ability to preserve consistent material properties. Overall, ceramic coatings have emerged as the preferred option for gasification environments due to their structural resilience, inclusion integrity, and elemental stability. Considering the inclusion integrity, mechanical strength, weight stability, and elemental stability, ceramic-coated stainless steel 316 samples exhibit better resistance toward producer gas influence. This research contributes valuable insights for material selection in applications exposed to harsh gasification environments, emphasizing the importance of coating selection for long-term durability and performance.
12 March 2024 in Journal of Materials Engineering and Performance
Sustainable development implies development brought to the present society without giving up on the scope of needs that future generation requires. For achieving sustainable development various goals were been fixed and indicators are been used to measure up the progress. Energy utilization is one of the important aspects for development of a country, technology etc. The energy utilized has mostly been fossil based such as coal, oil etc. These sources have been used in electric generation in most countries and crude oil refined petrol and diesel have been used for transporting purpose. The usage of the fossil-based fuels which has more carbon content in them possess the threat of polluting the environment by causing emission into the atmosphere, Moreover the availability of reserves of these sources are also become thin as these are non-renewable source of energy. For overcoming these obstacles, the developed countries are being focussing on renewable sources of energy for managing the energy demand and to have eco-friendly environment. The advancements in the field of bioenergy have contributed energy generation from different sources through various techniques. One of the important aspects about the bioenergy generation is utilizing the waste, end products of the biomass to energy. Various wastages from agro to food industries are not managed as it degrades on its own. However, these organic wastages can be viewed as a source for energy generation. The objective the experiment is analyse tamarind seed, cashew seeds and blend of both in powder form and briquetted for energy generation. The experimental result indicates that the briquetted form of is more suitable in terms of properties with higher fixed carbon contents.
1 February 2020 in IOP Conference Series: Materials Science and Engineering
Low carbon alloys are low in cost and easily shapeable. Chemical composition of a material determines the mechanical properties. In this paper 16MnCr5, low alloy steel is surface treated via carburizing and carbonitriding in sealed quench furnace and quenched with oil. The effects of tensile deformation, strain rate behaviour and fracture characteristics were investigated by scanning electron microscope (SEM). A detailed investigation was done on case hardness how the surface treatment alters the hardness of the material from surface to core. The fracture of the specimen after surface treatment shows results with an intergranular fracture with projected burs on the fractured specimen. This paper investigates the fracture mechanism of surface treated material.