Journal of Advancements in Material Engineering (e-ISSN: 2582-0036)

Modeling and Analysis of Dissimilar Welding Process of AISI 1020 Steel with the AISI 304 Stainless Steel

2023-11-08T14:26:49+0530

The dissimilar welding of AISI 1020 steel with AISI 304 stainless steel is a complex and vital area of research in materials science and engineering. This study aims to provide a comprehensive analysis of the welding process, microstructural evolution, mechanical properties, and potential applications of such joints. The dissimilar welding process was carried out using various techniques, including Gas Tungsten Arc Welding (GTAW), Shielded Metal Arc Welding (SMAW), and Electron Beam Welding (EBW). The microstructural analysis revealed the formation of a distinct weld zone with varying phases and grain structures, which significantly influence the mechanical properties of the joint.

Through extensive mechanical testing, including tensile, impact, and hardness tests, the properties of the dissimilar welds were evaluated. The results demonstrate the influence of welding parameters, post-weld heat treatment, and filler materials on the joint's mechanical behaviour. Additionally, the corrosion resistance of the welded joints in different environments was investigated to assess their suitability for various applications.

The findings of this study provide valuable insights into the dissimilar welding of AISI 1020 steel and AISI 304 stainless steel, offering guidance for optimizing welding parameters, selecting appropriate filler materials, and designing post-weld heat treatment processes to enhance the mechanical and corrosion-resistant properties of the joints. This research contributes to the development of dissimilar welding techniques for a wide range of industrial applications, such as the automotive, aerospace, and structural engineering sectors, where materials with diverse properties need to be joined effectively.

Developing Nano-Insulation Materials to Enhance the Energy Saving for Cooling a Traditional House in Hot Arid Climate

2023-10-18T11:33:15+0530

The importance of this study relates to thermal insulation applications, where there is a need for efficient insulating materials with smaller wall thicknesses. This work compiled experimental findings on the thermophysical characteristics of the materials, such as the thermal conductivity of some nanomaterials mixing with epoxy to produce a new material with thermal insulation performance to reduce the thermal conductivity of building walls and roofs. These nanomaterials include Aerogel, silicon dioxide, and siloxane. The diameter of the particles has been checked by a particle size analyzer, while the structure of the composite has been tested by the SEM images. The coefficient of Thermal conductivity is significantly influenced by several parameters such as temperature, humidity and thickness. The temperature of the material is the most important factor, whereas thickness has a much smaller impact. The article concludes that there are numerous potential uses for aerogel, and one of them is for superthermal insulation. The study's objective is to contrast a conventional wall that commonly uses commercial thermal insulation materials with a composite wall that contains nano-insulation materials. The nanomaterials that were used for mixing of Aerogel/epoxy, Silicon dioxide/epoxy, and Siloxane nanoparticles in proportions of 1.5%, 3%, and 6% wt, respectively. According to research, 3% of these Aerogel/epoxy nanoparticles significantly improve insulation's thermal properties when compared to residential insulations.

A Review on Composite Material-Based Leaf Spring for Automotive Vehicle

2023-09-13T14:35:34+0530

Today's greater competition and innovation in the automobile industry tend to modify current items or replace them with newer models made of advanced materials. Another place where these kinds of changes are often made is the suspension system of any vehicle. There are several attempts made to increase user comfort. Automobile vehicles employ leaf springs as their primary suspension mechanism. Periodically, the leaf spring design will be improved by switching from standard steel to composite material. In general, composite materials are employed primarily in a variety of industries, including the marine, automotive, and aerospace industries. Due to their excellent strength, they are frequently employed in low-weight applications and as a cheaper alternative to metals. This essay provides an overview of the literature on the suitability of composite materials for car leaf springs. It contrasted with a typical leaf spring and covers the study and design of composite leaf springs. Software like CAITA, Creo, etc. is used by certain authors to design leaf springs, while ANSYS software is also used to analyze leaf springs. According to many research studies, composite leaf springs are thought to offer advantages over standard mono and multi-steel leaf springs in terms of weight, stresses, vibration, expanding strength, exhaustion life, and riding comfort.

Optimizing Tensile Strength in FRP Composites: Enhanced Fiber-Matrix Compositions

2023-10-23T14:07:13+0530

In the world of construction materials Fiber Reinforced Polymers (FRPs) have emerged as a choice due to their impressive strength, lightweight nature and resistance to corrosion. This study focuses on enhancing the strength of FRP composites by exploring new combinations of reinforcing fibres and matrix materials. The historical challenges with corrosion in steel-reinforced structures led to the development of FRPs. Early innovators like Leo Baekeland and Norman de Bruyne played a role in laying the groundwork for composite materials, which found important applications in aviation, building panels and more.

This study investigates how different percentages of glass fibers affect the properties of FRP composites. Glass fibers, thinner than hair but stronger than steel when compared by weight were combined with epoxy resin to create these composite materials. Through experimentation and analysis, we fabricated composites with varying volume fractions (0%, 1%, 2% and 3%) of glass fibres. These samples were then subjected to testing using a universal testing machine. The findings from this study provide contributions to the field of construction materials and engineering. The developed FRP composites do not address the long-standing corrosion issues associated with traditional steel-reinforced concrete but also offer a versatile and durable solution, for various applications.

The effective incorporation of these cutting-edge materials into structures holds the potential for longer-lasting durability decreased expenses for upkeep and enhanced structural strength. Moreover, this study establishes the groundwork for progress in composite materials opening avenues for sustainable and resilient infrastructures, in the future.

Effect of Nanoparticles on Tribological Behavior of Functionality Graded FRP Nanocomposite

2023-09-30T16:33:25+0530

The addition of ceramic nanoparticles to polymers is known to enhance their mechanical and tribological properties. In this study, different amounts of nano-sized silicon carbide (SiC) particles with an average diameter of 70 nm were introduced into an epoxy resin to improve the tribological properties of the resulting composites. The effects of particle size, amount, and dispersion technique on the composite's performance were investigated. Pin-on-disc tests were conducted to monitor the wear behaviour of the fabricated nanocomposites. The experimental results showed that the addition of SiC nanoparticles improved the wear resistance of the composites and the optimum filler loading was found to be 3 vol. %. Scanning electron microscope (SEM) images of the worn surfaces were also analyzed, and it was concluded that the addition of 3 vol. % SiC nanoparticles gave the best results. This study highlights the potential of using ceramic nanoparticles as nanofillers to improve the tribological properties of polymers.