... electron microscopy methods. Mechanical properties such as hardness and tensile strength were evaluated using a Vickers hardness tester and a universal testing machine. Findings Results revealed the occurrence of complex material flow across the interface with a cavity-like defect on the advancing side...

...). By analysing the interrelationship between volumetric energy density (VED) and the four key LPBF process parameters – laser power, scan speed, scan spacing and layer height – this study identifies the optimal parameter set to manufacture Ti6Al4V with high hardness without compromising the surface quality...

... parameters for Polystyrene (PS200), focusing on their effects on hardness and density to produce high-quality investment casting patterns. Design/methodology/approach A comprehensive characterization of PS200 was conducted. A three-factor face-centered central composite design (FC-CCD) was used...

... exhibited better surface finishing over a 0.4 mm nozzle diameter. Infill density was shown to slightly influence the tensile properties, whereas layer thickness showed a significant effect on surface roughness. By contrast, hardness and ductility were independent of nozzle diameter, layer thickness...

...) and C11000 dissimilar fabrications. The hardness and microstructure of the dissimilar interfaces were investigated thoroughly. The formation of Cu–Ti intermetallic at the Ti64/Cu fusion interface is been revealed by scanning electron microscopy and energy dispersive X-ray analysis, while X-ray diffraction...

... and are exposed on one side to UV light during post-processing. A depth profile of the hardness according to ASTM D2240 Shore D is determined alongside the specimens. UVA,-B and -C spectra are investigated and the dependence on exposure dose and pigmentation is studied. The results are directly linked...

...Huang-Jan Hsu; Shyh-Yuan Lee; Cho-Pei Jiang; Richard Lin Purpose This study aims to compare the marginal fit, flexural strength and hardness for a ceramic premolar that is constructed using dental computer aided machining (CAM) and three-dimensional slurry printing (3DSP). Design/methodology...

... infrared spectroscopy. The tension strength was determined according to the standard ASTM D638-2003, the flexible strength was determined according to ASTM D790-07 and the hardness was measured according to ASTM D2240-05. The volume shrinkage was measured by dilatometer method. The glass transition...

...Ana R. Lapcevic; Danimir P Jevremovic; Tatjana M Puskar; Robert J. Williams; Dominic Eggbeer Purpose – The purpose of this paper is to analyse structure and measure hardness of Co-Cr dental alloy samples made with two different technologies, conventional casting method (CCM samples) and additive...

... as a net shape process for making high performance components has been successfully demonstrated. Simple cylindrical shapes made of Alloy 625 superalloy and Ti‐6Al‐4V have been integrally canned by SLS and post‐processed by containerless HIP to full density. Microstructure and hardness data reveal...