Abstract A comparative investigation was made into Ti6Al4V powders produced by electrode induction melting gas atomization (EIGA), plasma spheroidization (PS), and (PA) in terms of particle size distribution, shape, element microstructure, flowability forming properties. The were characterized a laser shape analyzer, scanning electron microscopy (SEM), an energy dispersive spectrometer (EDS), x...

Introduction: Cell-based assays using three-dimensional (3D) cell cultures may reflect the antitumor activity of compounds more accurately, since these models reproduce the tumor microenvironment better. Methods: Here, we report a comparative analysis of cell behavior in the two most widely employed methods for 3D spheroid culture, forced floating (Ultra-low Attachment, ULA, plates), and hangin...

in this research, numerical simulation of a symmetric impact of a 2-d wedge, considering dynamic equations in two-phase flow is taken into account. the two-phase flow around the wedge is solved based on finite volume method and volume of fluid (vof) scheme. the dynamic mesh model is used to simulate dynamic motion of the wedge, thereby the effects of different dynamic meshes in both structured ...

the dynamic facility layout problem (dflp) is the problem of finding positions of departments onthe plant floor for multiple periods (material flows between departments change during the planning horizon)such that departments do not overlap, and the sum of the material handling and rearrangement costs isminimized. in this paper a new optimization algorithm inspired from colonizing weeds, invasi...

This research uses EBSD data of two thermo-mechanically processed medium carbon (C45EC) steel samples to simulate micromechanical deformation and damage behavior. Two with 83% 97% spheroidization degrees are subjected virtual monotonic quasi-static tensile loading. The ferrite phase is assigned already reported elastic plastic parameters, while the cementite particles properties. A phenomenolog...

In view of the local cracking and leakage water-wall pipe Subcritical Boiler in a thermal power plant, mechanism water wall was studied by means macroscopic analysis, chemical composition metallographic structure, Brinell hardness test, tensile test at room temperature scanning electron microscopy. The results show that there is no misuse materials or unqualified cracked leaked pipe. There are ...

This study aims at assessing the effect of solution heat treatment (at a temperature just below eutectic temperature) followed by various cooling rates on microstructure and mechanical properties additively manufactured AlSi10Mg cast counterpart. The were evaluated using depth-sensing nanoindentation platform. parts solutionized 540 ​°C for 2 ​h water quenching, air cooling, furnace cooling. Re...

Abstract In the current work, thermal stability of eutectic regions and precipitation mechanical behaviour near high-entropy alloy is studied. The solidified as FCC underwent sequential ordering to L1 2 with order–disorder transition temperature between 700°C 1000°C. Cooling rate, variation in concentration boundary layer, gradient interfacial energy were attributed define morphology (L1 B2). T...

Abstract Cold spray (CS) is a solid-state additive manufacturing process that can create high-density, high-performance deposits for many applications. Aluminum alloys have been the target of recent CS research due to their excellent mechanical behavior when cold-sprayed. The introduction new Al interest as unique properties may be achieved, especially powder heat-treated prior deposition. In t...