During the multi-laser powder bed fusion (ML-PBF) process, quality of overlap region is essential to ensure integrity between different laser scanning areas. Here, six widths (ORWs) are selected systematically investigate effect ORWs on densification, metallurgical defects, crystalline microstructure, and mechanical performance Hastelloy X samples processed by fusion. set 0, 50, 100, 150, 200, ...

This work aims to evaluate the influence of laser power and reinforcement feeding rate on microstructure, hardness, wear behavior NbC-reinforced Hastelloy C276TM alloy composite coatings. From a dual system, one-step metal-matrix coatings were deposited with 10, 30, 50% mass NbC powder powers 1.5 3.0 kW. Coatings kW 30% showed some degree porosity due combination melting pool temperature. Laser...

There is a growing demand to produce parts from Hastelloy-X materials, which exhibit high unit cost per weight, by the selective laser melting (SLM) process. However, when material was employed, solidification crack occurred during SLM This cracking can be reduced or eliminated optimizing process parameters, such as power and scan speed, although optimization time- cost-intensive. In this study...

REBCO Coated Conductors have high tensile strength along their length. They are however sensitive to delamination when traction force is applied on the tape surface, which in a pancake winding corresponds radial stress. For this reason, most magnets dry-wound (not impregnated). One of drawbacks dry that conduction cooling low temperature (below 20 K) would be inefficient. Edge impregnation stru...

The microstructural and mechanical evaluation of 9% Ni steel with flux-cored arc welding (FCAW) was performed two different Ni-based weld metals: Inconel 625 Hastelloy 609. metals showed changes depending on the temperature gradient crystal growth rate for each region during cooling after welding. A cellular/planar exhibited at bottom metal, which rapidly cooled in contact cold base metal. Colu...