During the laser powder bed fusion (LPBF) process, keyhole pores or lack of may form depending on energy density used to fabricate part. In this study, different levels densities are investigate formed within 2.5 mm × 1 cuboid specimen. Micro-CT is characterize and measure pores, results show that porosity increases with an increase in density, while a decrease density. Besides, metallography p...

In this paper, the combination of shielded metal arc welding (SMAW) and gas tungsten (GTAW) methods are used in a double V groove SS304 10 mm thick plate. Welding current variation 110A SMAW/120A GTAW, 100A SMAW/130A 90A SMAW/140A GTAW was to observe effect on tensile strength microstructure. Tensile test metallography were performed phenomenon. ImageJ software for microstructure analysis. The ...

The aerospace industry is one of the biggest consumers of advanced materials because of its unique combination of mechanical and physical properties and chemical stability. Highly alloyed stainless steel, titanium alloys and nickel based superalloys are mostly used for aerospace applications. High alloyed stainless steel is used for the shafts of aero engine turbines, titanium alloys for compre...

In many applications in metallography and analysis, many regions need to be considered and not only the current region. In cases where there are analyses with multiple images, the specialist should also evaluate neighboring areas. For example, in metallurgy, welding technology is derived from conventional testing and metallographic analysis. In welding, these tests allow us to know the features...