Performance Assessment of the Developed Flux Powder on the Tensile and Hardness Properties of Steels Joints Using TIG-Welding

Abstract

The conversion of waste to wealth has recently grossed high attention as it possesses the ability to boost the economy of any nation; hence, this research. In this study, the characterization and investigation of mechanical properties of nano- flux (CaO) welding powder developed from bio-agrowaste (eggshell) was carried out. Mild, galvanized and stainless steel of plates and rods were used as parent metals for the experiment. Results obtained from hardness test in the base metal, weld joint and heat affected zone for the galvanized and mild steel plates with nano-flux powder gave the best hardness of 111.95, 120.30, 182.99 and 206.21, 164.85, 110.56 BHN respectively. The tensile stress obtained both for mild and stainless steel was 88.14 MPa while the tensile strain obtained for both plates were 0.0155 mm/mm. Microstructural analysis results shows an improvement in the structure, surface and patterns of the weld with the use of developed flux compared with imported flux. Hence eggshells can be recycled and used for developing flux powder for welding processes.

Assessment of Mechanical Properties of Aluminium Metal Matrix Composite Reinforced with Carbonized Eggshell Ash (CESA)

“…The dimension is a cylindrical shape with a diameter of 11.4 mm and a length of 75mm as presented in Figure 3c. The size of V-notches is 45° and 3.3 mm depth in according with the report in [9,10,21]. The impact test was conducted according to particle size and weight fraction of the composites together with the control sample.…”

“…Engineers and scientists are continually looking for ways to enhance the properties of any material that could be practically used in any scope of their practice and ensure the environmental effects are also well considered. Many types of research have been carried out in the development of AMCs but little attention has been given to waste conversion to worth as regards base material and reinforcement at the same time [9].…”

“…Therefore, if these wastes can be used to produce a new composite, it will be a good solution to the problem of waste pollution, disposal, and control. Aluminum matrix composite from the study has shown to have several advantages over unreinforced monolithic material such as greater strength, improved stiffness, and reduced weight, among others [9]. The need for composite materials that can serve better and save energy by recycling aluminum scrap is the focus of this research.…”

Comparative Analysis on the Effect of Agro-Waste Based Flux During Arc-Welding of Mild-Steel

“…Welding, which is the technology of joining two or more materials (metals mostly) by means of heat, finds a lot of relevance in the development of cars, buildings, bridges as a result of the recent boom in industrialization [1,2]. Popular among the many welding types are Metal Inert Gas Welding (MIG) and Tungsten Inert Gas Welding (TIG).…”

An Overview of TIG Welding of Ti6Al4V: Recent Developments

“…In the past, manual metal arc welding (MMAW) is majorly used in the welding of metals but has a major drawback of oxidation and vaporization of the melt pool, due to strong heat input [27]. These effects are eliminated with the use of flux or inert gases, in the cases of MIG and TIG to weld titanium and its alloys [21,28]. To obtain sound welding, researchers need to have a good knowledge of the characteristics of the metal and the selection of suitable welder equipment.…”